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n200080 [17]
2 years ago
11

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?​
Fofino [41]

Answer:

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

5 0
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)

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

y-2=-\frac{1}{5}(x+3)

We expand to get:

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

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

The slope intercept form of the line is:

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

8 0
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≈

63%

8 0
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

so

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
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