Monday

January 23, 2017
Total # Posts: 1,439

**math**

Which of the following measurements, in centimeters, could be the lengths of the sides of a triangle? Select all that apply. a)3cm,4cm,5cm b)4cm,10cm,14cm c)5cm,11cm,15cm d)6cm,6cm,13cm e)7cm,4cm,12cm f)8cm,10cm,17cm THANK YOU!

*April 20, 2016*

**math**

a university surveys a randomly selected group of 250 freshmen. In the group, 20 of the freshmen were left-handed. If there are 8,000 in the freshman class, what is the best prediction fo the number of left-handed freshmen students? THANK YOU!

*April 19, 2016*

**Math**

456.635, so would it be A? Since it is the closest?

*April 19, 2016*

**Math**

An airplane pilot over the Pacific sights an atoll at an angle of depression of 7°. At this time, the horizontal distance from the airplane to the atoll is 3,729 meters. What is the height of the plane to the nearest meter? 458 meters 454 meters 3,667 meters 3,701 meters ...

*April 19, 2016*

**Math**

Never mind! I redid it and got 87.185, thank you so much!

*April 19, 2016*

**Math**

^ Sorry! That was supposed to be my name!

*April 19, 2016*

**Math**

1. To find the height of a pole, a surveyor moves 120 feet away from the base of the pole and then, with a transit 8 feet tall, measure the angle of elevation to the top of the pole to be 36*. to the nearest foot, what is the height of the pole? A) 87 feet. B) 95 feet. C) 71 ...

*April 19, 2016*

**Math**

It was extremely close, there was no guessing. I saw someone else do this problem and got A, but did not explain it well.

*April 19, 2016*

**Math**

1. In triangle DEF, m angle D=45, m angle E=63, and EF=24 in. What is DE to the nearest tenth of an inch? A) 30.3 in. B) 15.1 in. C) 32.3 in. D) 10.5 in. Is the Answer A? I'm not quite sure though since i'm confused on this question. If someone could help that would ...

*April 19, 2016*

**Math**

How did you get this? where did the numbers come from and what formula did you use?

*April 14, 2016*

**Math**

1. The lengths of the three sides of a triangle are given. Classify each triangle as acute, right, or obtuse. NUMBERS: 30, 40, 50. I'm confused by this question, could someone help/explain what it is asking.

*April 14, 2016*

**physics**

Two point charges of -86.5 mC and 36.3 mC are held fixed on an x axis at the origin and x = 24.4 cm, respectively. What are the magnitude and direction of the total electrostatic force on a third charge of 18.8 mC placed at (a) x = 48.8 cm (b) x = 97.6 cm I've tried ...

*April 14, 2016*

**Math**

Thank you so much! this was so much help!

*April 11, 2016*

**Math**

1) A plane is located at C on the diagram. There are two towers located at A and B. The distance between the towers is 7,600 feet, and the angles of elevation are given. a) find BC, the distance from Tower 2 to the plane, to the nearest foot. b) find CD, the height of the ...

*April 11, 2016*

**math**

Distributive Property -2/3 (c-12)= -5y (6z-10)= THANK YOU!

*April 9, 2016*

**math**

24 miles per hour equal how many yards per minute? How is the answer 352yd/min??? --the way I'm doing it is: 24 mi/1h x 1760 yd/1mi x 1h/60min = 42,240yd/60min = 704yd/min THANK YOU!

*April 9, 2016*

**science (9th grade)**

A form of 18 karat white gold contains 75% gold and 25% palladium. What type of solution is this? Specify which element is the solute and which is the solvent. help???

*April 6, 2016*

**english**

perfect thanks

*April 5, 2016*

**english**

"What light is to the eyes – what air is to the lungs – what love is to the heart, liberty is to the soul of man." Robert Green Ingersoll i need help with this quote. I know its about freedom. what exactly he is saying what does it mean? please help i need ...

*April 5, 2016*

**math**

Phillip wants to estimate how many words are in a book he is reading for class. He counts the words on 21 pages, and he finds the mean word count is 311 words per page. There are 196 pages in the book. Which is the best estimate for the total number of words in the book? ...

*April 5, 2016*

**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*