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Tasya [4]
3 years ago
7

What are five ways to determine if a quadrilateral is a parallelogram?

Mathematics
1 answer:
Gennadij [26K]3 years ago
8 0
Opposite sides are parallel, opposite angles are equal, no curves (only straight lines), there are only 4 sides, and 4 angles,
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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.

5 0
3 years ago
First good answer gets brainiest
matrenka [14]

1/4

since there is 4 letters in the word math

so 1 out of 4

<em>Hope it helps...</em>

8 0
3 years ago
Read 2 more answers
3 1/4 - 1 3/8 (please help)
viva [34]

In fix fraction it will be, 1 7/8

and the exact answer is 15/8

and in decimal from it will be, 1.875

3 0
2 years ago
Read 2 more answers
What is the value of x?
vekshin1

Answer:

12, im pretty sure

Step-by-step explanation:

5 0
2 years ago
Q · 7/9 = 4<br> What is q?
FrozenT [24]

Answer:

q = 36/7  or 5 1/7

Step-by-step explanation:

q · 7/9 = 4

Multiply each side by 9/7

q · 7/9 *9/7 = 4*9/7

q = 36/7

If we want it as a mixed number instead of an improper fraction

7 goes into 36 5 times with 1 left over

q = 5 1/7

4 0
3 years ago
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