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2 years ago

I need a full explanation for this problem. I don’t know how to do it

Mathematics

1 answer:

Ilya [14]2 years ago

7 0

Answer:

3861 cm³

Step-by-step explanation:

Consider this solid as combination of two prisms, one with recrangular base and another with trapezoid base.

Find the area of bases

Rectangle

A = lw = 8*17 = 136 cm²

Trapezoid

A = (1/2)(17 + 6)(22 - 8) =(1/2)(23)(14) = 161 cm²

Find the total base area

B = 136 + 161 = 297 cm²

Find the volume

V = Bh
V = 297*13 = 3861 cm³

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If y = kx, where k is a constant, and y = 30 when x = 6, what is the value of y when x = 3?

Svetradugi [14.3K]

Answer:

Step-by-step explanation:

Actually it's 11 because 11 is technically the same when added to constant of x =6 = 11

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3 years ago

he isosceles triangle has a perimeter of 7.5 m. Which equation can be used to find the value of x if the shortest side, y, measu

lapo4ka [179]

Answer:

2x+ 2.1 = 7.5

x=2.7

Step-by-step explanation:

The perimeter of an isosceles triangle with sides x and y is

2x+y = P

I put y as the single side since the question said y is the shortest side. It should say shorter sides if the two sides with the same length are smaller than the third.

We know y =2.1 and P = 7.5

Substituting these values in, we get

2x+ 2.1 = 7.5

Subtract 2.1 from each side

2x+2.1 -2.1 = 7.5 -2.1

2x= 5.4

Divide each side by 2

2x/2 = 5.4/2

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3 years ago

What is the value of the expression 24 + 32? Numerical Answers Expected! Answer for Blank 1:

AysviL [449]

Answer:

14!

Step-by-step explanation:

The actual question is 2^4 + 3^2, so 2+2+2+2=8 and 3+3=6. So, 8+6= 14

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4 years ago

Drag each label to the correct location on the table . Triangle EFG . Rectangle PQRS . Triangle TUV . Rectangle ABCD . Your choi

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Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

A swimming pool at a park measures 9.75 meters by 7.2 meters.

neonofarm [45]

Answer:

Part a) The area of the swimming pool is $70.2\ m^2$

Part b) The total area of the swimming pool and the playground is $105.3\ m^2$

Step-by-step explanation:

Part a) Find the area of the swimming pool

we know that

The area of the swimming pool is

$A=LW$

where

L is the length side

W is the width side

we have

$L=9.75\ m\\W=7.2\ m$

substitute the values

$A=(9.75)(7.2)$

$A=70.2\ m^2$

therefore

The area of the swimming pool is $70.2\ m^2$

Part b) The area of the playground is one and a half times that of the swimming pool. Find the total area of the swimming pool and the playground

we know that

To obtain the area of the playground multiply the area of the swimming pool by one and a half

$\frac{1}{2}(70.2)=35.1\ m^2$

To obtain the total area of the swimming pool and the playground, adds the area of the swimming pool and the area of the playground

$70.2\ m^2+35.1\ m^2=105.3\ m^2$

therefore

The total area of the swimming pool and the playground is $105.3\ m^2$

6 0

3 years ago