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3 years ago

12

It takes 2 hours for Faucet A to fill a tank, and it takes Faucet B 4 hours. How many hours will it take the two faucets to fill

the tank together?

1 answer:

Alla [95]3 years ago

5 0

Answer:add 2 and 4 and then divide by 2.

Step-by-step explanation:

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A model of a soccer ball is made up of regular pentagons and hexagons.

Monica [59]

<em>An </em><em>apothem</em><em> is a line from the center of a regular polygon at right angles to any of its sides.</em>

<u>For part A</u>,

We want to find area of pentagon (5 sided figure) given apothem is 1.38 in and side length as 2 inch.

If we look at the picture shown (attached), we can see that a triangle is formed. What is the area of this triangle?

$A=0.5bh\\A=0.5(1)(1.38)\\A=0.69$ square inches

<u><em>How many such triangles are there in a pentagon? 10. So we multiply 0.69 by 10 to get total area of pentagon.</em></u>

Area of Pentagon = $0.69*10=6.9$ square inches.

<u>For part B</u>,

We want to find area of hexagon (6 sided figure) given apothem is 1.73 in and side length as 2 inch.

If we look at the picture shown (attached), we can see that a triangle is formed. What is the area of this triangle?

$A=0.5bh\\A=0.5(1)(1.73)\\A=0.865$ square inches

<em><u>How many such triangles are there in a hexagon? 12. So we multiply 0.865 by 12 to get total area of hexagon.</u></em>

Area of Hexagon = $0.865*12=10.4$ square inches.

ANSWER:

Area of Pentagon is 6.9 square inches.

Area of Hexagon is 10.4 square inches.

5 0

3 years ago

Please help me do number 3 and number 4

Marina86 [1]

Hello :
let : A(0,3) B(4,8)
<span>the slope is : (YB - YA)/(XB -XA)
</span>(8-3)/(4-0) = 5/4
same method for 4

3 0

3 years ago

Rewrite the following equation in log form: 2^2 = 4

Finger [1]

We have to write

$2^2 =4$

In log form

To convert exponential equation to log equation, we have to use the following rule $If \ a^b = c, \ then \ b=log_{a} c$

So we will get

$If \ 2^2 =4, \ then \ 2 = log_{2} 4$

or

$log_{2}4=2$

And that's the required log form .

5 0

3 years ago

Read 2 more answers

The store price of a jeans is $50. If the discount given by the store is 45%, calculate the discount amount offered by the store

nata0808 [166]

Step-by-step explanation:

50+45%=72.5

50-45%=27.5

50×45%=22.5

7 0

3 years ago

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In winter, the price of apples suddenly went up by 0.75 per pound. Sam bought 3 pounds of apples at the new price for a total of

forsale [732]

5.88 / 3 = 1.96 per pound
original price - 1.21 per pound

5 0

3 years ago