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2 years ago

Pls answer all and show work and provide explanation!

Mathematics

1 answer:

Alex787 [66]2 years ago

3 0

Preshan Dahal Kharel http server and I have

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A water storage tank is in the shape of a hemisphere (half a sphere). If the radius is 20 ft, approximate the volume of the t

otez555 [7]

Answer:

The approximate volume of the tank is $V=16,747\ ft^{3}$

Step-by-step explanation:

we know that

The volume of a hemisphere (water storage tank) is equal to

$V=\frac{4}{6}\pi r^{3}$

we have

$r=20\ ft$

assume

$\pi =3.14$

substitute

$V=\frac{4}{6}(3.14)(20)^{3}$

$V=16,747\ ft^{3}$

7 0

3 years ago

Explain how your knowledge of place value helps you divide a number in the thousands by whole numbers to ten . Give an example t

poizon [28]

Place value is the value individual digit has in its location: in order from higher to lower value, there is thousands, hundreds, tens, and ones.
When you divide by 10, you are affecting (only once) every digit from its current place value to the right.
For example 1000 divided by 10 = 100, you have relocated every digit to the right, making the zero dissolve (or better yet, divided by a hidden and in this case unusable comma).

5 0

3 years ago

If a house is worth $125,000 and depreciates by 7.5% per year, how much is it worth in two

Tju [1.3M]

Answer:

18750

Step-by-step explanation:

so since it's 2 years we have to double 7.5 which is 15%. Then we multiply 15 x 125,000 which is 18,750

6 0

2 years ago

I give you 35 points, PLS HELP!!<br><br> If CD = 8√3, find AE

Dimas [21]

Answer:

not 35

Step-by-step explanation:

it 18

3 0

2 years ago

What is an equation of the line that passes through the points (-3,-1) and

NARA [144]

The equation of line that passes through the points (-3,-1) and

(-6,3) is:

$y=-\frac{4}{3}x-5$

Step-by-step explanation:

Given points are:

(-3,-1) =(x1,y1)

(-6,3)=(x2,y2)

The slope-intercept form of equation of line is:

$y=mx+b$

We have to find the slope first

$m=\frac{y_2-y_1}{x_2-x_1}\\=\frac{3-(-1)}{-6-(-3)}\\=\frac{3+1}{-6+3}\\=\frac{4}{-3}$

Putting the value of slope in the slope intercept form

$y=-\frac{4}{3}x+b$

To find the value of b, putting the point (-3,-1) in the equation

$-1=-\frac{4}{3}(-3)+b\\-1= 4+b\\b=-4-1\\b=-5$

Putting the values of b and m

$y=-\frac{4}{3}x-5$

The equation of line that passes through the points (-3,-1) and

(-6,3) is:

$y=-\frac{4}{3}x-5$

Keywords: Equation of line, slope intercept form

Learn more about equation of line at:

#LearnwithBrainly

6 0

2 years ago