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2 years ago

I picked the second one, was I correct?

Mathematics

2 answers:

Assoli18 [71]2 years ago

3 0

Answer:

yes

Step-by-step explanation:

erik [133]2 years ago

3 0

Yes you are hopeful this helped have a nice day <3

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You have $270 in your bank account. You plan to save $80 from your paycheck each week. Which graph shows your bank account balan

elixir [45]

Y=80x+270
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3 years ago

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When a cylindrical tank is filled with water at a rate of 22 cubic meters per hour, the level of water in the tank rises at a ra

Sergeu [11.5K]

Answer:

$r=\sqrt{10}\text{ m}$

Step-by-step explanation:

We have been given that when a cylindrical tank is filled with water at a rate of 22 cubic meters per hour, the level of water in the tank rises at a rate of 0.7 meters per hour. We are asked to find the approximate radius of tank in meters.

We will use volume of cylinder formula to solve our given problem as:

$V=\pi r^2h$ , where,

r = Radius,

h = Height of cylinder.

Since the level of water in the tank rises at a rate of 0.7 meters per hour, so height of cylinder would be $h = 0.7$ meters at $V=22\text{ m}^3$ .

Upon substituting these values in above formula, we will get:

$22\text{ m}^3=\frac{22}{7}\cdot r^2(0.7\text{ m})$

$22\text{ m}^3=\frac{22}{10}\cdot r^2\text{ m}$

$\frac{10}{22}\cdot\frac{22\text{ m}^3}{\text{m}}=r^2$

$r^2=\frac{10}{22}\cdot\frac{22\text{ m}^3}{\text{m}}$

$r^2=10\text{ m}^2$

Now, we will take positive square root of both sides as radius cannot be negative.

$\sqrt{r^2}=\sqrt{10\text{ m}^2}$

$r=\sqrt{10}\text{ m}$

Therefore, radius of tank would be approximately square root of 10 m.

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3 years ago

If the bases of a trapezoid have lengths of 19 and 38, what is the length if the median?

Feliz [49]

Length of the median would be: a+b / 2 = 19+38 / 2 = 57/2 = 28.5

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3 years ago

Please help me answer these questions

mamaluj [8]

Answer:

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Step-by-step explanation:

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3 years ago

One focus of a hyperbola is located at (-7, 1). One vertex of the hyperbola is located at

inna [77]

Answer:

(x+2)^2/16 - (y-1)^2/9 = 1

Step-by-step explanation:

I just did this problem for edgen 2020.

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3 years ago

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