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4 years ago

Can you answer the question please I really need help

Mathematics

1 answer:

LenaWriter [7]4 years ago

5 0

The answer is 1 7/30 hope this helps

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I think of a number subtract 3 and multiply<br> 4

Mariulka [41]

Answer: -8

my number was 1

4 0

3 years ago

The triathletes were offered water as they rode by the volunteer station. The volunteers handed them cones with the dimensions s

sladkih [1.3K]

Considering the volume of the cone, it is found that each triathlete sloshed out 9.5 cm³ of water.

<h3>What is the volume of a cone?</h3>

The volume of a cone of <u>radius r and height h</u> is given by:

V = 1/3 x r² x h

In this problem, the radius and the height are given as follows:

r = 3.5 cm, h = 7 cm.

Hence the total volume is:

V = 1/3 x 3.5² x 7 = 28.6 cm³

The triathletes sloshed out 1/3 of that, hence:

1/3 x 28.6 = 9.5 cm³.

More can be learned about the volume of a cone at brainly.com/question/14281550

#SPJ1

3 0

2 years ago

A national newspaper reported that the state with the longest mean life span is Hawaii, where the population mean life span is 7

Alinara [238K]

Answer:

Mean = 71.4 years

Standard Deviation = 20.64 years

Step-by-step explanation:

We are given the following data set:

72, 68, 81, 93, 56, 19, 78, 94, 83, 84, 77, 69, 85, 97, 75, 71, 86, 47, 66, 27

Formula:

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{1428}{20} = 71.4$

Sum of squares of differences =

0.36 + 11.56 + 92.16 + 466.56 + 237.16 + 2745.76 + 43.56 + 510.76 + 134.56 + 158.76 + 31.36 + 5.76, 184.96 + 655.36 + 12.96 + 0.16 + 213.16 + 595.36 + 29.16 + 1971.36 = 8100.8

$S.D = \sqrt{\displaystyle\frac{8100.8}{19}} = 20.64$

Mean = 71.4 years

Standard Deviation = 20.64 years

6 0

4 years ago

Solve : 11 (9-v)=0 a) -9 b) 9 c) 99 d)-99

garri49 [273]

B. V=9 Multiply it out, then subtract 99 from both sides, then divide by 11

7 0

3 years ago

Read 2 more answers

How do you get the measurements of an angle

Rasek [7]

Answer:

Use a ruler or protractor

Step-by-step explanation:

All you have to do it’s

1) Get your ruler/protractor out (And if you don’t have a ruler use a edge/slide of a object for example it would be a side of a book and than measure it, but if you don’t have a protractor, you have to buy one)

2) measure the angle

3) boom!

5 0

3 years ago