Friday

December 9, 2016
Total # Posts: 1,419

**math**

But they only give these choice answers. Which could it be and why? Thank you! A)762 B)1260 C)1350 D)3780

*April 5, 2016*

**math**

To determine the squirrel population in a city park, researchers tagged 90 squirrels. Later, they counted 630 squirrels, 42 of which had tags. Based on this data, what is the total number of squirrels in the park? THANK YOU!

*April 5, 2016*

**Physics**

You and your little cousin sit on a see-saw. You sit 0.39 m from the fulcrum, and your cousin sits 1.53 m from the fulcrum. You weigh 620 N. How much does she weigh?

*April 4, 2016*

**reading comprehension**

d

*March 21, 2016*

**Math**

1. The two rectangles are similar. Which is the correct proportion for corresponding sides? the two rectangles are 4 by 12 and 8 by 24. thanks! A) 12/8=24/4 B) 8/4=24/12 C) 12/4=8/24 D) 4/12=24/8 Is the answer C? I'm not quite sure about it but that's what i'm ...

*March 14, 2016*

**Math**

1. x/y=a/b ; solve for Y. Does anyone know how to solve this? I believe you gotta cross multiply but I'm lost from there. any help would be great. Thank you!

*March 7, 2016*

**math**

A farmer is using a random sample to predict the number of broken eggs in a shipment of 3,000 eggs. Using a calculator, the farmer generates the following random numbers. The numbers 1-250 represent broken eggs. 477, 2116, 1044, 81, 619, 755, 2704, 900, 238, 1672, 187, 1509. ...

*March 5, 2016*

**math**

A pair of shoes that normally costs $75 is on sale for $55. What is the percent decrease in the price, to the nearest whole percent? THANK YOU!

*March 5, 2016*

**chemistry**

what mass of CdS is produced if 4.55g of cadmium reacts with 2.00g of sulfur?

*March 3, 2016*

**Technology**

Hi there! Does anyone know how I can insert a scatter plot into a cell on the table? So that someone would be able to click on the cell and the scatter plot with my data would pop up? I have the scatter plot but I don't know how to add it into the cell. Thank you!

*March 1, 2016*

**Math 6th grade plz check plz**

Do that with the rest.

*March 1, 2016*

**Math 6th grade plz check plz**

To find a perimeter add all the sides together, for example: Question 1, ADD THE SIDES! 20+20+15+15. This would be 70 inches total. To find area, MULTIPLY the values of the two sides: Question 1, 15*20= 300 inches!

*March 1, 2016*

**math**

In a wildlife preserve, a random sample of the population of 150 raccoons was caught and weighed. The result, given in pounds, were 17,19,20,21,23,27,28,28,28 and 32. Jean made the qualitative statement, "The average weight of the raccoon population is 25 pounds." Is...

*February 25, 2016*

**Pre-Calculus**

A drawbridge is l = 110 feet long when stretched across a river. As shown in the figure below, the two sections of the bridge can be rotated upward through an angle of α = 34°. a)If the water level is 35 feet below the closed bridge, find the distance d between the ...

*February 25, 2016*

**Pre-Calculus**

A person flying a kite holds the string 4 feet above ground level. The string of the kite is taut and makes an angle of 60° with the horizontal (see the figure). Approximate the height of the kite above level ground if 500 feet of string is payed out. (Round your answer to...

*February 25, 2016*

**math**

A random sample of dogs at different animal shelters in a city shows that 12 of the 60 dogs are puppies. The city's animal shelters collectively house 1,200 dogs each year. About how many dogs in all of the city's animal shelters are puppies? THANK YOU!

*February 25, 2016*

**math**

A manager samples the receipts of every fifth person who goes through the line. Out of 50 people, 4 had a mispriced item. If 600 people go to this store each day, how many people would you expect to have a mispriced item? THANK YOU!

*February 25, 2016*

**theoretical probability**

Each student in a class of 25 students wrote down a random digit. What is the predicted number of students who wrote a digit that is greater than 7? The answer is 5... How did they get 5? THANK YOU!!

*February 20, 2016*

**math**

Each student in a class of 25 students wrote down a random digit. What is the predicted number of students who wrote a digit that is greater than 7? THANK YOU!!

*February 20, 2016*

**math**

Bella rolls 2 number cubes 60 times. How many times can she expect the sum of the numbers to be greater than 10? THANK YOU!

*February 19, 2016*

**statistics**

Two cards selected from standard deck of 52 cards. The first is replaced before second card selected. Find the probability of selecting a diamond and then a king

*February 18, 2016*

**Math **

Given: Triangle SVX is congruent to triangle UTX and Line SV is parallel to line TU. Prove: VUTS is a parallelogram. Statement : Reason. 1. Tri SVX is congruent to Tri UTX. Reason: Given. 2. Line SV is parallel to line TU. Reason: Given 3. Line SV is congruent to line TV. ...

*February 18, 2016*

**Math**

Given: Triangle SVX is congruent to triangle UTX and Line SV is parallel to line TU. Prove: VUTS is a parallelogram. Statement : Reason. 1. Tri SVX is congruent to Tri UTX. Reason: Given. 2. Line SV is parallel to line TU. Reason: Given 3. Line SV is congruent to line TV. ...

*February 17, 2016*

**math - probability**

Pierre asks Sherry a question involving the theoretical probability of a compound event in which you flip a coin and draw a marble from a bag of marbles. The bag of marbles contains 3 white marbles, 8 green marbles, and 9 black marbles. Sherry's answer, which is correct, ...

*February 17, 2016*

**math - probability**

Cecil solved a theoretical prediction problem and got this answer: "The spinner will land on the red section 4.5 times." Is it possible to have a prediction that is not a whole number? If so, give an example. THANK YOU!!

*February 17, 2016*

**physics**

(a) Two point charges totaling 7.50 µC exert a repulsive force of 0.100 N on one another when separated by 0.561 m. What is the charge on each?

*February 14, 2016*

**College Physics**

A truck moving north at a speed of 70 km/h. The exhaust pipe on top sends out a trail of smoke that makes a 20 degree angle east of south. If the wind is blowing toward the east. What is the wind speed at that location?

*February 10, 2016*

**Math**

1. Based on the given information, what can you conclude, and why? Given: m angle P= m angle T ; PR=TR. A) Triangle QRP is congruent to Triangle TRS by SAS. B) Triangle QRP is congruent to Triangle SRT by SSS. C) Triangle QRP is congruent to Triangle SRT by ASA. D) Triangle ...

*February 9, 2016*

**Math**

1. Based on the given information, what can you conclude, and why? Given: m angle P= m angle T ; PR=TR. A) Triangle QRP is congruent to Triangle TRS by SAS. B) Triangle QRP is congruent to Triangle SRT by SSS. C) Triangle QRP is congruent to Triangle SRT by ASA. D) Triangle ...

*February 9, 2016*

**Math**

So the answer is D?

*February 9, 2016*

**Math**

1. If triangle ABC is congruent to DEF, m angle A =55, and m angle E =25. What is m angle C? A) 25 B) 55 C) 80 D) 100 Is the answer C?

*February 9, 2016*

**Math**

1. Write the following reversible as a biconditional: If two perpendicular lines intersect, they form four 90* angles. A) Two intersecting lines are perpendicular if and only if they form four 90* angles. B) Two intersecting, perpendicular lines do not form four angles. C) ...

*February 5, 2016*

**Math**

1. What is the value of x in this diagram? There's two lines crossing each other. One angle is 7x+7, and another one is 47, the next is 112. A) 17 B) 15 C) 105 D) 68 Is the answer B? I got B when I solved but I still would like someone to check, thank you!

*February 4, 2016*

**Math**

1. Complete two column proof. Given: x/6+2=15 Prove: x=78 x/6+2=15 A:______ x/6=13 B:______ x=78 C:_______ A:a. Given b. Subtraction Property of Equality c. Division Property of Equality B:a. Given b. Addition Property of Equality c. Multiplication Property of Equality C:a. ...

*February 1, 2016*

**Math**

Complete the 2 column proof. Given m<rst = 5x and m<uvw = 7x <rstand <uvw are supplementary. Prove x=15 m<rst=5x and m<uvw=7x <rst and <uvw are supplementary given m<rst + <uvw = 180 definition of supplementary angles 5x+7x = 180 ? 12x=180 ? x=15...

*February 1, 2016*

**Math**

1. Which of the following best describes the altitude of a triangle? A) A segment perpendicular to a side of the triangle. B) A segment that passes through the midpoint and is perpendicular to a side of a triangle. C) A segment drawn from the vertex to the midpoint of the ...

*February 1, 2016*

**Math**

1. Where is the incenter of any given triangle? A) the point of concurrency of the altitudes of the triangle. B) The point of concurrency of the medians of the triangle. C) The point of concurrency of the perpendicular bisectors of the triangle. D) The point of concurrency of ...

*February 1, 2016*

**Art**

Oh! I apologize! I thought the question said "WOULD hold up well outdoors".

*February 1, 2016*

**Math**

1. Find the value of X. In the inside of the triangle, there are 5 angles, angle A, Angle B, angle C, angle D, and Angle E. There is a midsegment with 3x on one side of the midsegment and 48 on the inside of segment CD. There are also two 30's on each side of the triangle...

*February 1, 2016*

**Math**

1. When would the following conditional be false? If you work 20 hours a week, then you make 125.00. A) You work 25 hours a week, and make 125.00. B) You work 25 hours a week, and you make 175.00. C) You work 20 hours a week, and you make 175.00. D) You work 20 hours a week, ...

*January 31, 2016*

**Math**

Also, thank you so much!

*January 30, 2016*

**Math**

Would the answer be C?

*January 30, 2016*

**Math**

1. The vertices of a triangle are P(2,-4), Q(-5,3), and R(-1,-2). What are the vertices of the image reflected across the y-axis? A) P(2,-4), Q(-5,3), R(-1,-2) B) P(2,4), Q(-5,-3), R(-1,2) C) P(-2,-4), Q(5,3), R(1,-2) D) P(-2,4), Q(5,-3), R(1,2) Could someone please help me ...

*January 30, 2016*

**Math**

1. If Angle ABC is congruent to Angle DEF by side-side-side triangle congruence, the angle B is congruent to Angle E by? A) Side-angle-side congruence. B) Angle-angle-side congruence. C) Corresponding parts of congruence. D) Corresponding parts of congruent triangles are ...

*January 30, 2016*

**math**

Use the AC method for factoring: (-4x+1)(-3x+5) Hope it helps!

*January 30, 2016*

**Math**

1. When would the following conditional be false? If you work 20 hours a week, then you make 125.00. A) You work 25 hours a week, and make 125.00. B) You work 25 hours a week, and you make 175.00. C) You work 20 hours a week, and you make 175.00. D) You work 20 hours a week, ...

*January 30, 2016*

**Math**

1. What is the hypothesis of the following conditional statement? If we walk home from school, it takes 30 minutes. A) We walk home from school. B) It takes 30 minutes. C) We do not walk home from school. D) We walk. Is the answer B? I'm sorry if I'm incorrect, I do ...

*January 30, 2016*

**Math**

Find the solution to the system of equations by substitution. 2x+5y=8 and 6x+y=10

*January 28, 2016*

**Math**

5. What is the contrapositive of the following conditional: "If a student plays basketball, then the student is over 6 feet tall." A- If a student is over 6 feet tall then the student plays basketball. B - IF a student is not over 6 feet tall, then the student does ...

*January 27, 2016*

**Math**

1. Find the length of a diagonal of a rectangle ABCD with vertices, A (-3,1), B(-1,3), C(3,-1) and D (1,-3). A) 5.7 B) 6.3 C) 3.2 D) 4.5 Hello! I don't understand how to solve this question since the unit I just read barely went over this. If anyone could help that would ...

*January 27, 2016*

**math**

Find the percent change from $20 to $25. --thank you!

*January 26, 2016*

**math**

A school snack bar sells a mix of granola and raisins. The mix includes 2 pounds of granola for every 3 pounds of raisins. How many pounds of granola are needed for a mix that includes 24 pounds of raisins? THANK YOU!

*January 26, 2016*

**Physics**

A tennis ball, starting from rest, rolls down a hill. At the end of the hill the ball becomes airborne, leaving at an angle of 35° with respect to the ground. Treat the ball as a thin walled spherical shell (I=2/3 mr^2 )and determine the range x it travels if it starts at ...

*January 26, 2016*

**math**

Each of two trapezoidal prisms has a volume of 120 cubic centimeters. The prisms have no dimensions in common. Give possible dimensions for each prism. THANK YOU!

*January 24, 2016*

**Math**

Tony's mom wants to pay her son 2.00 for his first hour of work, and then double his pay every hour after that. If tony works six hours how much would he make?

*January 24, 2016*

**math**

The wading pool shown is a trapezoidal prism with a height of a total volume of 286 cubic feet. What is the missing dimension? **The drawing shows the shallow height is 2ft. Length is 13ft. Width is 8ft. And a question mark for the height of the deeper end of pool. THANK YOU!!

*January 24, 2016*

**math**

Josie has 260 cubic centimeters of candle wax. She wants to make a hexagonal prism candle with a base area of 21 square centimeters and a height of 8 centimeters. She also wants to make a triangular prism candle with a height of 14 centimeters. Can the base area of the ...

*January 24, 2016*

**Maths**

the scale of a map is 1:20000. Find the length of a road in real life it is 6 cm long on the map

*January 23, 2016*

**Math**

Are you sure? That was my first guest originally, but it didn't seem to be equidistant from both points - (2,2) was the one that was equal distance.

*January 23, 2016*

**Math**

1. Find the midpoint AB. Point be is located at (6,6) and point A is located at (-3,-3). There's a straight line connecting them. A) (4.5, 4.5) B) (1.5, 1.5) C) (3,3) D) (2,2) Is the answer D?

*January 23, 2016*

**math**

An oatmeal box is shaped like a cylinder with 2 inch radius and 9 inch height. Use a net to find the surface area S of the oatmeal box to the nearest tenth. Then find the number of square feet of cardboard needed for 1,500 oatmeal boxes. Round your answer to the nearest whole ...

*January 21, 2016*

**math**

Henry has a box that has 24 cm length, 27 cm width, and 10 cm height. He wants to cover the box with paper without any overlap. A) How many square centimeters will be covered with paper? B) Suppose the length and width of the box double. Does the surface area S double? Explain...

*January 21, 2016*

**math**

An oatmeal box is shaped like a cylinder with 2 inch radius and 9 inch height. Use a net to find the surface area S of the oatmeal box to the nearest tenth. Then find the number of square feet of cardboard needed for 1,500 oatmeal boxes. Round your answer to the nearest whole ...

*January 21, 2016*

**math**

Enya is building a storage cupboard in the shape of a rectangular prism. The rectangular prism has a square base with side lengths of 2.5 feet and height of 3.5 feet. Compare the amount of paint she would use to paint all but the bottom surface of the prism to the amount she ...

*January 21, 2016*

**Science**

How much longer will it take for sound in air to travel 10km than in water

*January 20, 2016*

**math**

A composite figure is formed by combining a square and a triangle. Its total area is 32.5 feet squared. The area of the triangle is 7.5 ft squared. What is the length of each side of the square? Explain. THANK YOU!!

*January 14, 2016*

**Physics**

How fast must a plane fly at a latitude of 41.9° so that the sun stands still relative to the passengers?

*January 13, 2016*

**math**

How does the area of a circle change if the radius is multiplied by a factor of n, where n is a whole number? THANK YOU!

*January 12, 2016*

**math**

The bulls-eye on a target has a diameter of 3 inches. The whole target has a diameter of 15 inches. What part of the whole target is the bulls-eye? Explain. THANK YOU!!

*January 12, 2016*

**math**

The point (3,0) lies on a circle with the center at the origin. What is the area of the circle to the nearest hundredth? THANK YOU!

*January 11, 2016*

**science**

What do you mean?

*January 5, 2016*

**science**

Financially,Canada would have benefited from keystone xl pipeline. What would have meant for individual Canadians? I know I have repeated the question from before but I need help urgently, since it's due tomorrow.

*January 5, 2016*

**science**

Financially,Canada would have benefited from keystone xl pipeline. what would have meant for individual Canadians?

*January 5, 2016*

**math**

The sides of a square field are 12 meters. A sprinkler in the center of the field sprays a circular area with a diameter that corresponds to a side of the field. How much of the field is not reached by the sprinkler? Round your answer to the nearest hundredth. THANK YOU!

*January 4, 2016*

**government**

C the king privy council

*December 30, 2015*

**math**

You can use the formula A = C^2 / 4pi to find the area of a circle given the circumference. Describe another way to find the area of a circle when given the circumference. THX!

*December 30, 2015*

**math**

A radio station broadcasts a signal over an area with radius of 50 miles. The station can relay the signal and broadcast over an area with a radius of 75 miles. How much greater is the area of broadcast region when the signal is relayed? Round your answer to nearest square ...

*December 30, 2015*

**math**

A bakery offers a small circular cake with a diameter of 8 inches. It also offers a large circular cake with a diameter of 24 inches. Does the top of the large cake have three times the area of the small cake? If not, how much greater is its area? Explain.

*December 30, 2015*

**math**

A gear on a bicycle has the shape of a circle. One gear has a diameter of 4 inches, and a smaller one has a diameter of 2 inches. Justin says that the circumference of the larger gear is 2 inches more than the circumference of the smaller gear. Do you agree? Explain your ...

*December 30, 2015*

**math**

A circular path 2 feet wide has a an inner diameter of 150 feet. How much farther is it around the outer edge of the path than around the inner edge? THX!

*December 28, 2015*

**math**

Sam in placing rope lights around the edge of a circular patio with a diameter of 18 feet. The lights come in lengths of 54 inches. How many strands of lights does he need to surround the patio edge?

*December 27, 2015*

**math**

A museum groundskeeper is creating a semicircular statuary garden with a diameter of 30 feet. There will be a fence around the garden. The fencing costs $9.25 per linear foot. About how much will the fencing cost altogether? THANK YOU!

*December 27, 2015*

**Statistics**

Having trouble with these four questions: 1. Given the rules of the different games of chance described in the sheet you downloaded, think about your odds of winning in each of these three scenarios: A. Craps: Either roll or a 7 or 11 on the first roll, OR match the point ...

*December 17, 2015*

**math**

A map of a public park shows a circular pond. There is a bridge along a diameter of the pond that is 0.25 mi long. You walk across the bridge,while your friend walks halfway around the pond to meet you at the other side of the bridge. How much farther does your friend walk? ...

*December 15, 2015*

**Entrepreneurship**

Or is it B? I'm kinda confused here. Either ones could technically happen. the price could go down if no one was buying the product. BUT if people were buying the product due to how easily available it was, the price could go up.

*December 14, 2015*

**Entrepreneurship**

1. If a product becomes more easily available, what is likely to happen? A) The product will get more competitors. B) The cost of making the product will increase. C) The product will become a consumer good. D) The price will go down. Is the answer D? I'm not really sure, ...

*December 14, 2015*

**Entrepreneurship**

1. A company claims that its products are better quality than other similar products. What type of competition is this? A) Price B) Nonprice*** C) Supply D) Demand 2. Every tangible product is made up of what? A) Wealth B) Entrepreneurship C) Labor D) Land*** My answers are: 1...

*December 14, 2015*

**Physics**

A satellite has a mass of 6090 kg and is in a circular orbit 4.63 × 105 m above the surface of a planet. The period of the orbit is 2.4 hours. The radius of the planet is 4.86 × 106 m. What would be the true weight of the satellite if it were at rest on the planet...

*December 4, 2015*

**Chemistry**

I'm wondering, if Hydronium ions are formed , do we use Ka? And vice versa (OH- we use Kb?

*December 2, 2015*

**Chemistry**

Calculate the pH of a 0.18 M solution of cyanide ion, CN- given the Ka (HCN) = 6.2 x 10^-10. I know how to calculate Ka and Kb values no problem, but I don't know which value to use in my calculations. Is it based on the conjugate base/acid formed or hydronium or hydroxide...

*December 2, 2015*

**math**

A sphere has a radius of 12 inches. A horizontal plane passes through the center of the sphere. A)Describe the cross section formed by the plane and the sphere. B)Describe the cross sections formed as the plane intersects the interior of the sphere but moves away from the ...

*December 2, 2015*

**math**

A right rectangular prism is intersected by a horizontal plane and a vertical plane. The cross section formed by the horizontal plane and the prism is a rectangle with dimensions 8 inches and 12 inches. The cross section formed by the vertical plane and the prism is a ...

*December 2, 2015*

**geometry**

A scale for a scale drawing is 10 cm:1 mm. Which is larger, the actual object or the scale drawing? Show work. --I understand that the answer is 100 times larger since 10mm equals 1cm. BUT how do I show the work of how this is solved? THANK YOU!

*December 1, 2015*

**math**

A game room has a floor that is 120 feet by 75 feet. A scale drawing of the floor on grid paper uses a scale of 1 unit:5 feet. What are the dimensions of the scale drawing? THANK YOU!

*December 1, 2015*

**Statistics**

A survey of physicians in 1979 found that some doctors give a placebo to patients who complain of pain for which the physician can find no cause. If the patients' pain improves, these doctors conclude that it had no physical basis. The medical researchers who conducted the...

*November 20, 2015*

**inequality**

For the problem below, the simple way to get answer would be 10*-12=-120. But how to write it as an Inequality Expression? ---A submarine descends from sea level to the entrance of an underwater cave. The elevation of the entrance is -120 feet. The rate of change in the ...

*November 7, 2015*

**math **

A submarine descends from sea level to the entrance of an underwater cave. The elevation of the entrance is -120 feet. The rate of change in the submarine's elevation is no greater than -12 feet per second. Can the submarine reach the entrance to the cave in less than 10 ...

*November 7, 2015*

**math**

I did see this answer, but how is this written as an inequality type of expression? Thank you!

*November 7, 2015*

**math**

A submarine descends from sea level to the entrance of an underwater cave. The elevation of the entrance is -120 feet. The rate of change in the submarine's elevation is no greater than -12 feet per second. Can the submarine reach the entrance to the cave in less than 10 ...

*November 7, 2015*

**math**

Jerry started doing sit-ups every day. The first day he did 15 sit-ups. Every day after that he did 2 more sit-ups than he had done the previous day. Today Jerry did 33 sit-ups. Write an equation that could be solved to find the number of days Jerry has been doing sit-ups, not...

*November 6, 2015*