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Inessa05 [86]
3 years ago
10

Hey Brainly Community, another super easy question for some extra points!

Mathematics
2 answers:
Delicious77 [7]3 years ago
6 0
Wait do you want me to answer the question correctly or just want to mark me Brainly?
Setler [38]3 years ago
3 0

Answer: The third option or 30 - 2.5x is the correct answer.

Step-by-step explanation: 2.5x represents the rate of flow out of the container throught the leak. 30 represents the number of gallons originally in the container. You subtract the rate of flow per hour from the total amount of water in the container.

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What is the approximate area of the shaded portion of the diagram? (Use 3.14 as an estimate for pi.)
Nadusha1986 [10]

Answer:

218

Step-by-step explanation:

first find the area of the circle-

A=\pi r^{2} \\A=\pi 10^{2} \\A=100\pi \\A=314

to find the area of the triangle, we need the base and the height. The base we know is 16, since we don't know the height yet, use the Pythagorean theorem to find the height. One leg is 16 the hypotenuse is 20 (2* the radius).

a^{2} +b^{2} =c^{2} \\a^{2} +16^{2} =20^{2} \\a^{2} +256=400\\a^{2} =144\\a=12

Now I know the height is 12. Find the area of the triangle

A=\frac{1}{2} bh\\A=\frac{1}{2} (16)(20)\\A=96

subtract the area of the triangle from the area of the circle

314-96=218

6 0
2 years ago
One batch of fruit punch contains 1/3 quart grape juice and 1/5 quart apple juice. Colby makes 11 batches of fruit punch. How mu
zhuklara [117]

Answer:

3.66666666667

Step-by-step explanation:

If you multiply the number of batches he makes and the amount of grape juice he needs for every quart, you get and answer of 3.66666666667.

1/3 * 11= 3.66666666667

If you need to round the answer it would be 3.67

8 0
3 years ago
Help me please this will help my grade !
Sauron [17]

Answer: A (I think)

Step-by-step explanation: it would be left of 9 since it’s 8.77496438739

81 square rooted is 9 so 77 square rooted is less than 81 square rooted

And a number line counts up the more you go right.

5 0
3 years ago
A smart-phone is thrown upwards from the top of a 384-foot building with an initial velocity of 32 feet per
Anna007 [38]

Answer:

When t = 4

Step-by-step explanation:

The phone will hit the ground when h = 0.

16t^2 + 32t + 384 =0 \\ \\ t^2 + 2t + 24=0 \\ \\ (t+6)(t-4)=0 \\ \\ t=-6, 4

However, as time cannot be negative, we know the answer is when t = 4.

5 0
2 years ago
What does 2+2 equal to<br>​
Mazyrski [523]

Answer:

Step-by-step explanation:

1

5 0
2 years ago
Read 2 more answers
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