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3 years ago

Need help asap!! giving brainliest!!

Mathematics

1 answer:

gizmo_the_mogwai [7]3 years ago

5 0

Answer:

10!

Step-by-step explanation:

Basically you can see that one side of the "triangle" is 3, and the other is 9 (based on the distance, assuming that the line would be a hypotenuse). From here all you have to do is square 3 and square 9, add them, and find the square root

√(9+81) = 10

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At the soccer match hotdogs are sold for three dollars each and sodas are sold for two dollars each. There were three times as m

Oksana_A [137]

8 hot dogs and 24 sodas.
8 x $3 = $24
24 x $2 = $48
$24 + $48 = $72

7 0

3 years ago

(A rectangular prism has a length of 1 1/4 yards, a width of 2 1/2 yards, and a height of 4 yards.

slega [8]

Answer:

Step-by-step explanation:

It is given that A rectangular prism has a length of $1\frac{1}{4}$ yards a width of $2\frac{1}{2}$ yards, and a height of 4 yards.

Now, the volume of the prism is given as:

$V=Length{\times}width{\times}height$

$V=\frac{5}{4}{\times}\frac{5}{2}{\times}4$

$V=\frac{25}{2}$

$V=12\frac{1}{2}cubic yards$

Therefore, the volume of the rectangular prism will be $V=12\frac{1}{2}cubic yards$ .

4 0

3 years ago

Read 2 more answers

A rectangular cow pasture is enclosed on three sides by a fence and the fourth side is part of the side of a barn that is $400$

Degger [83]

Let us list out the given information:

Cost per foot = $5

Total fencing cost = $1200

Let L be the length of the barn that will maximize the area of the pasture and W be the width of the rectangular cow pasture.

From the given information, we need to do the fencing for three sides covering 1 L and 2 W's because other L will be the fourth side is part of the side of a barn. We need to write the equation based on the cost information.

If cost/foot is $5, then cost of length ' L ' will be 5L dollars and cost of '2W' width equals 10W dollars. Total cost is $1200. We can set up second equation as

5L + 10W = 1200. This can be simplified by dividing throughout the equation by 5 to get L+ 2W= 240. Solving for L we get L = 240 - 2W

Area of a rectangle is given by A = L ×W.

Substituting 240 - 2W for L we get the area function as..

A=(240 - 2W)×W= 240W-2W²

A = -2W²+240W.

When we have a function of the form f(x) = ax^2 + bx + c, then maximum value of the function can be obtained for x = -b/2a. Using that idea we can find the maximum area.

Here in the area function a = -2 and b = 240

For W = -b/2a = -240/2(-2) = -240/-4 = 60 feet, we get maximum area.

The question is asking us to find Length. We can substitute W = 60 in the equation L = 240 - 2W to find the Length.

L = 240 - 2(60) = 240 - 120 = 120 feet.

Conclusion: The length of the side parallel to the barn that will maximize the area of the pasture is 120 feet.

Note: Here the information 400 feet in the sentence "the fourth side is part of the side of a barn that is 400 feet long" given to distract us, we might not require that information to find the Length.