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2 years ago

Can someone help me plz

Mathematics

1 answer:

Wewaii [24]2 years ago

4 0

Answer:

9442 lb

Step-by-step explanation:

First find the volume of the tank. This being a sphere, the volume is V =(4/3)π·r³. Here the diameter is 17 ft, so the radius, r, is half that: 8.5 ft.

Then the volume of the sphere is V = (4/3)π·(8.5 ft)³, and half that (the volume of the hemisphere) is (2/3)π·72.25 ft³.

Water weighs 62.4 lb/ft³. To find the weight of the water in the full tank, multiply the tank volume by this weight density 62.4 lb/ft³:

(2/3)π·72.25 ft³ · 62.4 lb/ft³ ≈ 9442 lb

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What property is illustrated by this statements if a b and b = C, then a = c?

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Answer:

This is the transitive property of equality says that if a = b, and b = c, then a = c

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3 years ago

Read 2 more answers

Choose the equation that represents a line that passes through points (−3, 2) and (2, 1).

guapka [62]

Answer:

$y=-\frac{1}{5}x+\frac{7}{5}$

Step-by-step explanation:

The given line passes through points (−3, 2) and (2, 1).

We use the formula $m=\frac{y_2-y_1}{x_2-x_1}$ to find the slope of this line.

$\implies \frac{1-2}{2--3}=\frac{-1}{5}$

We use the point slope formula:

$y-y_1=m(x-x_1)$

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We expand to get:

$y-2=-\frac{1}{5}x-\frac{3}{5}$

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The slope intercept form of the line is:

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3 years ago

a tree was 62 inches tall. Three years later, it was 101 inches tall. What was the percent increase, to the nearest hundredth, o

nignag [31]

Answer:

63% increase.

Step-by-step explanation:

You don't really need to do anything because it's probably a 63% increase as 101 is close to 100 already. If you'd like:

$\frac{101-62}{62} *100=$

$\frac{39}{62} *100=$

$62.903225806451612903225806451613$ ≈

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3 years ago

A random sample of 4000 U.S. citizens yielded 2150 who are in favor of outlawing cheesing. Find the point estimate for estimatin

Darina [25.2K]

Answer:

0.5375

Step-by-step explanation:

The point estimate of proportion of all Americans who are in favor of outlawing cheese can be computed as

p=x/n

Here. x is the number of favorable outcomes and n is sample size.

We are given that x=2150 and n=4000, So,

p=2150/4000

p=0.5375.

Thus, the point estimate of proportion of all Americans who are in favor of outlawing cheese is 0.5375.

6 0

3 years ago

Kristen gets home from work at 5:34 p.m. Kristen's dinner is ready at 5:51 p.m.

bazaltina [42]

Answer:

1,020 seconds

Step-by-step explanation:

we know that

To find out how many seconds after Kristen gets home is her dinner ready, subtract the time Kristen gets home from the time Kristen's dinner is ready

$5:51 p.m-5:34 p.m=17 min$

Remember that

$1\ min=60\ sec$

Convert minutes to seconds

$17\ min=17(60)=1,020\ sec$

7 0

3 years ago

Can someone help me plz ​

Can someone help me plz