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3 years ago

Read the statements shown below.

1 answer:

3 0

Based on the given statements, the valid argument is that D. <span>It cannot be concluded that Beth drew a triangle with an angle measure of 90°.
We known that she drew a triangle, but we don't know what triangle - so A and B are incorrect. Also C, because we know that she drew a polygon, because a triangle is a polygon. </span>

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A chemical flows into a storage tank at a rate of (180+3t) liters per minute, where t is the time in minutes and 0<=t<=60

Yuliya22 [10]

Answer:

The amount of the chemical flows into the tank during the firs 20 minutes is 4200 liters.

Step-by-step explanation:

Consider the provided information.

A chemical flows into a storage tank at a rate of (180+3t) liters per minute,

Let $c(t)$ is the amount of chemical in the take at <em>t </em>time.

Now find the rate of change of chemical flow during the first 20 minutes.

$\int\limits^{20}_{0} {c'(t)} \, dt =\int\limits^{20}_0 {(180+3t)} \, dt$

$\int\limits^{20}_{0} {c'(t)} \, dt =\left[180t+\dfrac{3}{2}t^2\right]^{20}_0$

$\int\limits^{20}_{0} {c'(t)} \, dt =3600+600$

$\int\limits^{20}_{0} {c'(t)} \, dt =4200$

So, the amount of the chemical flows into the tank during the firs 20 minutes is 4200 liters.

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3 years ago

THIS IS MY LAST QUESTION. Okay, im a bit anxious to get this done. Ive done half the problem, I just need the other half.

igor_vitrenko [27]

Answer:

umef leaf ninja the frog held a

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3 years ago

Please help me asap

Leto [7]

1. D 12 2/7
2. 22 7/9 which is B hope this helps

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3 years ago

I need help fast this is due at the end of school!

Naddika [18.5K]

Answer:

She did everything correctly, therefore J

Step-by-step explanation:

6x-3+8+2(3+4x) doing distributed property gives you 6x-3+8+6+8x, step 3 you organize like terms. 14x-3+8+6 Step 4, you subtract 3 therefore in step 5 giving you 14x+11!

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3 years ago

The ratio of oil to vinegar in a certain salad dressing is 8:5. How much oil is blended with 7 liters of vinegar forbthat recipe

Nadya [2.5K]

8:5 x:7
8/5=x/7 Solve for x
x=11 1/5 or 11.2 liters

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3 years ago