Ask question

Ask question

All categories

3 years ago

7

2. Calculate the amount of gallons needed to fill the pool shown below. (3 points)

1 answer:

hammer [34]3 years ago

8 0

Answer:

52,322 gal

Step-by-step explanation:

will make it simple and short.

vol = ( a + b ) * h/2 times the depth

vol = (10 + 4) x (40/2) x 30 = 8400 cu. ft. ---------->>> then convert to gal.

6.2288 gal

vol = 8400cu.ft. x ----------------- = 52,322 gal

1 cu.ft.

You might be interested in

Name the parts of the following expression: 2x+3-4x+7

lisov135 [29]

Answer:

Step-by-step explanation:

2x and -4x are like terms because they both have an x attached.3 and 7 are also like term.the number 2 is a coefficient because attached to x.-4 is also a coefficient

4 0

3 years ago

Having just turned 16 years old, your friend has their mind set on buying a new car by the time they turn 20 years old. They can

DanielleElmas [232]

having just turned 16 years old, your friend has their mind set on buying a new car by the time they turn 20 years old

6 0

3 years ago

The line $y = 3$ intersects the graph of $y = 4x^2 + x - 1$ at the points $A$ and $B$. The distance between $A$ and $B$ can be w

raketka [301]

Answer:

61

Step-by-step explanation:

Let's find the points $A$ and $B$ .

We know that the $y$ -coordinates of both are $3$ .

So let's first solve:

$3=4x^2+x-1$

Subtract 3 on both sides:

$0=4x^2+x-1-3$

Simplify:

$0=4x^2+x-4$

I'm going to use the quadratic formula, $x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$ , to solve.

We must first compare to the quadratic equation, $ax^2+bx+c=0$ .

$a=4$

$b=1$

$c=-4$

$\frac{-1 \pm \sqrt{1^2-4(4)(-4)}}{2(4)}$

$\frac{-1 \pm \sqrt{1+64}}{8}$

$\frac{-1 \pm \sqrt{65}}{8}$

Since the distance between the points $A$ and $B$ is horizontal. We know this because they share the same $y-coordinate$ .This means we just need to find the positive difference between the $x$ -values we found for the points of $A$ and $B$ .

So that is, the distance between $A$ and $B$ is:

$\frac{-1+\sqrt{65}}{8}-\frac{-1-\sqrt{65}}{8}$

$\frac{-1+\sqrt{65}+1+\sqrt{65}}{8}$

$\frac{2\sqrt{65}}{8}$

$\frac{\sqrt{65}}{4}$

If we compare this to $\frac{\sqrt{m}}{n}$ , we should see that:

$m=65 \text{ and } n=4$ .

So $m-n=65-4=61$ .

5 0

3 years ago

Read 2 more answers

Is (x + 5) a factor of f(x) = x3 − 4x2 + 3x + 7?

Vaselesa [24]

Answer:

Step-by-step explanation:

Gcfygfvfvftf

6 0

3 years ago

At the local burger restaurant, you can get 4 value meals for $21.88. How much is each value meal?

Sidana [21]

If thats without tax its about 5.47

6 0

3 years ago

Read 2 more answers