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3 years ago

Helppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp

Mathematics

1 answer:

aleksklad [387]3 years ago

3 0

Answer:

4,826.25

Step-by-step explanation:

If it cost 82.5 A liter and she has 58 Liters. Just multiply.

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If the height of the tree trunk is 13 feet and the radius is 1.5 feet what is the volume in cubic feet round to the nearest 10th

Mumz [18]

Answer:

91.8 feet^3

Step-by-step explanation:

We can find out the area of a circle and then multiple that by the height to get the volume of the tree trunk (which is a cylinder).

Area of circle formula: pi x r^2

3.14 x 1.5^2 = 7.065

Now we can multiple it by the height and round to the nearest 10th.

7.065 x 13 = 91.845

91.845 -> 91.8

Hope this helps! Brainliest?

6 0

3 years ago

Read 2 more answers

A sample of 30 distance scores measured in yards has a mean of 7, a variance of 16, and a standard deviation of 4. You want to c

Nikolay [14]

Answer:

21, 144, 12

Step-by-step explanation:

Given that a sample of 30 distance scores measured in yards has a mean of 7, a variance of 16, and a standard deviation of 4.

Let X be the distance in yard.

i.e. each entry of x is multiplied by 3.

New mean variance std devition would be

E(3x) = $3E(x) = 21$

Var (3x) = $3^2 Var(x) = 9(16) =144$

Std dev (3x) = $\sqrt{144 } =12$

Thus we find mean and std devition get multiplied by 3, variance is multiplied by 9

4 0

3 years ago

What is the relationship between the segments PQ and P’Q’

cupoosta [38]

Answer:

$\frac{PQ}{P'Q'}=2.5$

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its corresponding sides is equal

In this problem Triangles OQP and OQ'P' are similar by AA Similarity Postulate

$\frac{PQ}{P'Q'}=\frac{OP}{OP'}$

we have

$OP=12-2=10\ units$

$OP'=6-2=4\ units$

substitute

$\frac{PQ}{P'Q'}=\frac{10}{4}=2.5$

5 0

3 years ago

What is the derivative of f(x)= 1/5(x^2 + 2)^5/2?

vlabodo [156]

Answer:

x(x^2+2)^3/2

Step-by-step explanation:

y'=1/2(x^2+2)^3/2.2x

= x(x^2+2)^3/2

8 0

2 years ago

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Find the slope of the line that passes through (4.4) and (5,3)

Vera_Pavlovna [14]

Answer:

- 1

Step-by-step explanation:

Slope of the line

$= \frac{3 - 4}{5 - 4} \\ \\ = \frac{ - 1}{1} \\ \\ = - 1$

7 0

3 years ago