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zheka24 [161]
3 years ago
11

HELP LOL, i dont understand

Mathematics
1 answer:
horrorfan [7]3 years ago
6 0

Answer:

C

Step-by-step explanation:

Since the lines make a linear pair,

(5x+10)+(2x-5)=180

7x+5=180

7x=175

x=25

now, we just plug in

5(25)+10

125+10

<u><em>135</em></u>

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A rectangular prism has a width of 16 inches and a length of 10 inches. The volume of the rectangular prism is decreasing at a r
frosja888 [35]

Answer:

-3.47 inches per minute

Step-by-step explanation:

Let the height be 'h' for any time 't'.

Given:

Length of the prism (L) = 10 in

Width of the prism (w) = 16 in

The rate of change of volume of prism is, \frac{dV}{dt}=-555\ in^3/min (The negative sign implies the volume decreases with time.)

Now, rate of change of height of prism = \frac{dh}{dt}=?

Length and width remains constant.

Now, we know that, volume of a rectangular prism is given as:

Volume = Length × width × Height

V=Lwh\\\\V=10\times 16\times h\\\\V=160h

Now, differentiating both sides with respect to time 't', we get:

\frac{dV}{dt}=\frac{d}{dt}(160h)

Plug in the given values and solve for \frac{dh}{dt}. This gives,

-555=160\times \frac{dh}{dt}\\\\\frac{dh}{dt}=\frac{-555}{160}\\\\\frac{dh}{dt}=-3.47\ in/min

The negative sign implies the height decreases with time.

Therefore, the the rate of change, in inches per minute, of the height when the height is 3 inches is -3.47 inches per minute.

5 0
3 years ago
Find the perimeter of the figure to the nearest hundredth.
Kryger [21]

Hello!

Your answer should be 26.85.

We can use the formula of pi d or 2 pi r for the circumference.

You would get 5 pi.

But since its not a full circle you would divide it in half and get 2.5 pi.

2.5 pi is equal to 7.85.

Now we can use the equation 7.85 + 7 + 7 + 5

That would equal our answer... 26.85!

Hope this helps!

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AleksandrR [38]

Answer:

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Step-by-step explanation:

1) according to the condition m(∠B)=m(∠D)=67°;

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Which of the following statements provides the correct freezing and boiling points of water on the Celsius and Fahrenheit temper
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Answer: i need a pic

Step-by-step explanation:

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