# Math

## Recent Questions

**math**

The north wall of a barn is a rectangle 25 feet high and 60 feet long. There are five windows in the wall, each 8 by 10 feet. If a gallon of paint will cover 275 ft2, how many gallons of paint must the painter buy to paint the wall?

**Math**

How do you find two numbers the exact answer is between

**Math**

What is an example of a real world relationship where there is no clear independent or dependent variable

**Math Cal 1**

Find numbers a and b or k so that f is continuous at every point. \ F(x)= 4x+7 if x<-4 kx+10 if x≥-4 Is -5/2 the correct answer?

**4th grade math**

Can you check please. 1. Melvin had 20 children in his kindergarten class. Two-fifths of the children had brown eyes. Onefourth of the children had blue eyes. The rest had hazel eyes. How many children had hazel eyes? 20(2/5) = 8 brown 20(1/4) = 5 blue 8+5=13. So 21-13 = 7 hazel

**math**

the product of helena's age and 4 is 76

**M1-math**

A bullet of mass 20 grams is fired into a wall with velocity of 400 ms 1. If the bullet penetrates the wall to a depth of 1cm, find the resistive force of the wall.

**math**

One half a number minus 6 is 4 . What is the number?

**math**

a car travels 120m along a straight road that is inclined at 8°to the horizontal. calculate the vertical distance through which the car rises

**Math**

Decide if the following pair of functions are of the same order. (a) f(x) = x^2 - 7 and g(x) = x^2 + 7 I found this example solution online: a). f(x) = 3x + 7 and g(x) = x x <= 3x + 7 <= 4x for all x > 7 I need help making sense of this so I can apply it to my work. ...

**math**

find the surface area for the given prism

**MATH**

Which equation shows the correct use of power of products property? a) (2x^5y^2)^3 = 6x5y^2 b) (2x^5y^2)^3 = 6x^15y^6 c) (2x^5y^2)^3 = 8x^8y^5 d) (2x^5y^2)^3 = 8x^15y^6 Is it D? I am very counfused

**math**

the area of a rectangle is 480 sq. metres .what is its width if its length is 120 metres ?

**Math**

For once I am the one who needs help so help if you can ASAP. 1.Determine which ratio forms a proportion with 9/5 by finding a common multiplier. A. 54/30 B. 45/50 C. 45/90 D. 90/20 Also.. 2.Determine which ratio forms a proportion with 14/35 by writing the ratio in simplest ...

**math**

An electrician charges a fee of $45 plus $30 per hour. Let y be the cost in dollars of using the electrician for x hours. Find the slope-intercept form of the equation

**Math (please check my answer!!)**

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 TU. Reason: CPCTC 4. VUTS is a parallelogram. Reason: If a pair of opposite sides of a quadrilateral are parallel and congruent then it is a ...

**math**

A 13 feet ladder is placed 5 feet away from a wall. What is the distance from the ground straight up to the top of the ladder?

**Math, physics, chemistry**

calculate total ionic strength of solution in which concentration of CuSO4 and Al2(SO4)3 is 0.1 molar

**Math**

Write a list of steps that are needed to find the measure of angle B. A measures 72 degrees and C measures 113. What does B measure?! Please help!

**Math**

Four brothers share 3 pizzas equally , how much of a pizza does each brother get

**math**

Wood floors are being refinished in an office. If the room is a square with 15 foot 6 inch sides, what will it cost to have the floor refinished at $5.98 per square foot?

**Math**

1. What are the next three terms in the sequence? –1, 9, 19, 29, … (1 point) 38, 37, 32 40, 51, 62 39, 49, 59***** 38, 47, 56 Please help me, thanks.

**Math**

If the gradient of AB is 3/4 , find the coordinates of A and B.

**Math**

52 pencils are put into boxes .7 in each box how many boxes are needed? how many pencils will be left?

**Math**

The coordinates of the midpoint of the line AB are (1, 2). The length of the line AB is 10 units. (a) If the gradient of AB is 0, find the coordinates of A and B (b) If the gradient of AB is 34 , find the coordinates of A and B.

**math**

a petri dish starts out with 500 bacteria. The amount of bacteria increases 25% each minute. Y=500(25)????

**Math**

The coordinates of the midpoint of the line AB are (1, 2). The length of the line AB is 10 units. If the gradient of AB is 0, find the coordinates of A and B

**Math**

the temperature at six o clock in the morning which is 26.5°c became 31°c . What was the average temperature?

**Math**

A person sitting on a boat is situated 2m above sea level. They note that a straight line from themselves to the top most point of a nearby lighthouse is 16 degrees. After travelling a further 50m directly away from the lighthouse this angle has decreased to 12 degrees. How ...

**Math**

If f(x) = 2x-9, find f(p) and f(x+h).

**math**

About 80% of the mass of a human body is water. If Hugo is 85kg, how man kilograms of water are in his body? this question is for financial mathematics topic

**Math**

Four brothers share 3 pizzas equally , how much of a pizza does each brother get

**Math**

Four brothers share 3 pizza equally . How much of a pizza does each brother get

**Math**

You use a scale of 1 inch = 280 feet to build a model of the Great Pyramid of Giza. The width of the base of the pyramid is 756 feet. What is the width of your model? 1. 27 in. 2. 3.4 in. 3. 3 in. 4. (2.7 in.)

**Math**

f(x+h)−f(x)=8hx^2+2hx+2h^2x−3h^2−4h^3. Find f′(x).

**Math**

f(x+h)−f(x)=4hx−1h+5h^2. Find f′(x).

**Math**

Marcus built a model car that is 4 inches wide. What scale was used to build the car if the actual width of the car is 6 feet? 1 in. = 2 ft 1 in. = 2.5 ft 1 in. = (1.5 ft) 1 ft = 1.5 in.

**math**

There are consecutive even numbers. If the middle number is 2n, find the rest of them in term of n

**Math**

John bought 8 bananas at the grocery store. Each banana weighed 50 grams. If the price for the bananas was $6.50 per kilogram, how much did he pay?

**Math**

Mr. Hernandez asked his students to estimate the area of the circular garden in front of the school. If the radius of the garden is 7 feet, which statement is closest to the area of the garden

**Math**

a clock will lose 5 minutes every day. How much time will it lose in 2 hours?

**Math**

Order the following from least to greatest 0.3 3/5 0.66 2/3 0.35

**Math**

The temperature of a freezer is never greater than -2 degrees C. Yesterday the temperature was -10 degrees C, but it increased at a steady rate of 1.5 degrees C per hour. How long in hours and minutes did the temperature increase inside the freezer?

**math**

Georgetown and Franklin are 9.7 in apart on a map that has a scale of 1.1 in : 15 mi. How far apart are the real cities?

**Math**

Martin has 12 times as many baseball cards as Josie. Josie has 29 more cards than Kal. How many baseball cards does Martin have?

**Math**

Carl had a part of a pizza. He gave 1/6 of a pizza to Susan. What part of a pizza did Carl have at first? Use the variable p.

**Math**

Gabriel has read 150 pages of a 236 page book.If he reads 9 pages a day, in how many days will he finish the book?

**Math**

How does RJ eat more than Jack when RJ ate 5/5 and Jack ate 9/10? Explain.

**Math**

7/8 - 5/6 =

**Math**

How do you solve x- 4/5 = 12/15

**Supportive learning environment**

The ideal early childhood schedule for preschool children contains which of the following? A. Frequent changes in activities so children don't get bored B. A 45-minute circle time activity C. Integrated activities within a large block of time D. A specific time for each ...

**Math (Elementary Linear Algebra)**

Find the general flow pattern of the network. 20<---A |\B__>x(4) |/ 80<---C I believe the system of equations for A,B,&C is-A: x(1)+x(3)=20 B: x(2)=x(3)+x(4) C: 0=x(1)+x(2) Assuming flows are all nonnegative, what is the largest possible value for x(3). Sorry, this ...

**Math**

How do I shift f(x)=x^2+sinx 3 to the right and 7 up?

**math**

your brother is 1/3 your age.your sister is 6 years older than your brother. your sister is 10 years old. write and solve and equation to find your age a

**Math**

21÷4

**math**

by how much does -y exceed y?

**math**

a 6 pack of undershirts costs 13.98. This is 3,96 less than the cost of buying 6 individual shirts. If each undershirt costs the same amount, how much does each undershirt cost when purchased individually?

**Math**

Decide if the following pair of functions are of the same order. (a) f(x) = x^2 - 7 and g(x) = x^2 + 7

**math**

a bag of chips weigh eight ounces how many bags of chips weigh 12 pounds

**Math**

Johnny is jogging along a track.he has already jogged 1 2/3 miles.he plans to jog a total of 3 1/4 miles.how many miles does he have left to jog

**Math**

What number would be 3 thousands 9 hundreds 17 tens and 2 ones?

**Math**

20. Write a sequence of transformations that maps quadrilateral ABCD onto quadrilateral A"B"C"D in the picture below. ( i know it doesn't show the pic of the graph but i need so much help)

**Math Unit Geometry Test 8th Grade**

Does anybody know the answers for the geometry unit test, 8th grade ?

**math**

in a circle of radius 6cm , a chord is drawn 3cm from the circle (a)calculate the angle subtended by the chord at the centre of the circle

**MATH @Damon @ms. Sue**

Belinda wants to invest $1000. The table below shows the value of her investment under two different options for three different years: Number of years 1 2 3 Option 1 (amount in dollars) 1100 1210 1331 Option 2 (amount in dollars) 1100 1200 1300 Part A: What type of function, ...

**Math**

How do i write 2,000,000+5,000+60+7 in standard form?

**Math**

The population of bacteria in a petri dish doubles every 12 h. The population of the bacteria is initially 500 organisms. How long will it take for the population of the bacteria to reach 800? Round your answer to the nearest tenth of an hour.

**Math**

The maximum possible score in an exam was 80 and all questions carried equal weightage. For each correct answer 4 marks were awarded whereas for each wrong answer 1 mark was deducted. For no answer, the marks remained unchanged. A student got 57 marks in which he failed to ...

**Math**

The maximum possible score in an exam was 80 and all questions carried equal weightage. For each correct answer 4 marks were awarded whereas for each wrong answer 1 mark was deducted. For no answer, the marks remained unchanged. A student got 57 marks in which he failed to ...

**math**

area of rectangle is 9 13/18. and the length is 4 3/8.what will be the width ? what will be the perimeter ?

**Math**

The maximum possible score in an exam was 80 and all questions carried equal weightage. For each correct answer 4 marks were awarded whereas for each wrong answer 1 mark was deducted. For no answer, the marks remained unchanged. A student got 57 marks in which he failed to ...

**math**

a tank with a 14 foot diameter is 20 feet tall. how many gallons of oil will it hold. ( cu. ft. = 7.5 gal)

**MATH**

Which expression calculates the time in hours an object takes to travel 38 miles at a speed of 2 m/h ? 38+2 382 38−2 38⋅2

**math help plz really urgent**

1. The formula M=log I/S determines the magnitude of an earthquake, where I is the intensity of the earthquake and S is the intensity of a “standard earthquake.” How many times stronger is an earthquake with a magnitude of 8 than an earthquake with a magnitude of 6? Show ...

**Business math**

An invoice is dated January 25 with terms 2/10 -20x. Find the final discount date and the net payment date. The net payment date is 20 days after the final discount date.

**Math**

Mrs. Renu wants to deposit a regular amount at the beginning of each quarter for 3 years. The bank pays interest @ 8% per annum. Find the quarterly deposits if Mrs. Renu will get Rs. 40000 at the end of 3 years.

**math**

An elevator descends at a rate of 4.5 feet per second. If the elevator begins its descent from a height of 360 feet, at what height will it be after 17 seconds?

**Math**

which g the following is a regular polygon. (a.rectangle (b.circle (c.equilateral triangle (d.trapezoid

**math**

Separate the following into partial fractions: (a) 3x^2/(x-1)^2 (x-2) (b) x-1/(x^2 + 2)(x + 1) (c) x^2 + 1/(x + 1)(x - 3)

**Math**

A variable star is one whose brightness alternately increases and decreases. Lists of variable stars can be found online, and many occur in familiar constellations visible with the naked eye. One such star, R Hydrae, has an average magnitude rating of 7.2 but its magnitude ...

**math**

1) Carmen borrowed $1,200 for three months at 10.5% interest. How much interest did she pay for the loan? 2)Zack deposited $1,200 in a savings account that paid 7.75% simple interest. What was the balance in his account at the beginning of the third year? 3)Dan and Dawn ...

**MATH @Damon @ms. Sue**

Can Someone check my Work Belinda wants to invest $1000. The table below shows the value of her investment under two different options for three different years: Number of years 1 2 3 Option 1 (amount in dollars) 1100 1210 1331 Option 2 (amount in dollars) 1100 1200 1300 Part ...

**Math**

Carolina has 10 marbles. One half of them are blue. How many of Carolina's marbles are blue?

**math**

The solution of the inequality ax- 2 < -4 is x < -1. What is the value of a?

**math**

A boat traveled downstream a distance of 9090 mi and then came right back. If the speed of the current was 88 mph and the total trip took 66 hourscomma nbsp, find the average speed of the boat relative to the water.

**math**

Describe the points on the earth’s surface that are visible to a viewer who is 100 miles above the North Pole. Would it be half of the surface area of Earth?

**math**

Three softball teams ordered equipment from the same catalog. The first team spent $285 on 5 shirts, 4 caps, and 8 bats. The second team spent $210 on 12 shirts and 6 caps. The third team spent $250 for 7 shirts, 10 caps, and 3 bats. What were the catalog prices for shirts, ...

**Math**

x = 2 when y = 12 in the proportion x/6 = k/y. Find x when y = 8.

**math**

barry gave 1/8 of his stamps to Tom, if he gave 15 stamps to Tom , how many did he had at first?

**Math**

Another way to name 1/4

**math**

An ant is on top of a tree 23 meters tall, directly above her home, which is 0.3 meters below the ground. What is an expression that represents the difference in elevation between the ant and her home?

**Math**

It takes 3/8 cup of powered drink mix to make 1 quart of a flavored drink. How many quarts of flavored drink can Juanita make with 3 cups of Cherry, 7/8 cups of grape and 2 1/4 cups of orange?

**Math**

Julie withdraws $175.00 from her bank account. This amount is 25% of her total savings. How much did she have in her account originally? I think that I multiply 175.00 by 4 which is 700.

**Math**

A salad dressing is 40% peanut oil. Greg wants to make 5 cups of dressing. How much peanut oil does he need?

**Math**

If the distance between 2 cities on the map is 2.5 inches and they are 125 miles apart what is the scale of the map

**math**

1. P(7) (1 point) 1/7 1/8 3/8*** 7/8 2. P(not 7) (1 point) 1/7*** 1/8 5/8 7/8 3. P(a multiple of 2) (1 point) 0.25*** 0.5 0.625 0.75 4. P(a factor of 12) (1 point) 12.5% 25% 50% 62.5%*** 5. Which event has the greatest likelihood? (1 point) spinning 7 spinning not 7 spinning a...

**math**

how do u identify a line segement? its not like im trying to get straight answers or anything i just wanna know

**Math**

which pair of ratios does NOT form a proportion? A.(3/5 24/40) B.30/10 15/3 C.9/14 3/4 D.7/12 14/24 Ms. Sue is this right?

**Math**

Select all the pairs of ratios that form a proportion. 1. 1/6,4/20 2. (7/9,28/36) 3. (14/18,21/27) 4. 30/80, 6/18 Ms. Sue are these right?

**math**

Shaul made a password that consists of one letter followed by two digits. The two digits are different. How many posible passwords did Shaul choose from?