GIVING BRAINLIEST TO WHOEVER ANSWERS THIS QUESTION CORRECT

Mathematics

1 answer:

Yakvenalex [24]3 years ago

4 0

Answer:

No correct choice

Step-by-step explanation:

<u>Given</u>

r = 23 in

<u>Area of the mirror:</u>

A = πr²
A = 3.14*23² = 1661 in²

None of the choices is correct

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The graph below shows the water level of a tank that is emptying over time.

Allisa [31]

From inspecting the graph, you can identify the y-intercept and the slope of the line shown.

The y-intercept is 200 gallons.
The slope is

75-200
m = ------------- = -12.5 gallons/minute
10 - 0

Thus, y = 200 gallons - [12.5 gallons/minute ]t

To answer the 2nd question, let t = 12 minutes and calculate y(12).

To determine how long it wld take to empty the tank, set the above formula equal to zero and solve the resulting equation for t.

3 0

4 years ago

Can someone help me???

mote1985 [20]

30 for the first and 83.5 for the second

7 0

3 years ago

Please help and thanks

pav-90 [236]

Answer: Bottom left corner

Angle DEC and Angle DEH

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Explanation:

I recommend opening your favorite paint program, and using different colors to mark on the drawing as I have done below (see attached image). Note how angle DEC is in red and angle DEH is in blue. The two angles are adjacent, meaning they share the same ray (in this case, ray ED) and they form a straight angle.

Because they form a straight angle, or straight line, this means the two angles are supplementary. Supplementary angles always add to 180.