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3 years ago

Find the lateral area of the cone in terms of pi.

Mathematics

1 answer:

enyata [817]3 years ago

8 0

To find the lateral area of a cone, use this formula:

$\pi r\sqrt{h^2+r^2}$

where r is the radius (in this case, 11) and h is the height (in this case, 26)

Try plugging the values in. If you need additional help, feel free to ask!

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What is the diameter of a circle with a circumference of 23.55m?

qwelly [4]

Answer:

C= π x diameter

diameter = c/π

lets use pi as 3.14

23.55/3.14 = 7.5 m

hope this helps

*fwwosh, disappeared

6 0

3 years ago

For a wedding the bride must select 4 bridesmaids from her 6 closest friends and must arrange them in order for the ceremony. Ho

Alex

The awnsers : A:24
Because she wouldn’t invite
360 or 750 or 1296 people plus 6•4=24

5 0

3 years ago

Read 2 more answers

PLEASE HELP!!!

Sholpan [36]

P=12T

Q=66T

-----------

Toys added to each bag:

P=12T+nT

Q=66T+nT

Therefore, 66T+nT=3(12T+nT)

------------

66T+nT=36T+3nT

T(66+n)=T(36+3n)

66+n=36+3n

3n-n=66-36

2n=30

Therefore, n=30/2=15

-------------

*She added 15 toys to each bag.

6 0

3 years ago

Is 0.81 the same as 0.081

Marina CMI [18]

No it is not. One is in hundreths and the other thousandths

7 0

2 years ago

Read 2 more answers

A school authority claims that the average height of students is 178 cm. A researcher has taken a well-designed survey and his s

Hunter-Best [27]

Answer:

d) The difference exists due to chance since the test statistic is small

Step-by-step explanation:

From the given information:

Population mean = 178 cm

the sample mean = 177.5 cm

the standard deviation = 2

the sample size = 25

The null hypothesis and the alternative hypothesis can be computed as:

Null hypothesis:

$H_o: \mu = 178$

Alternative hypothesis:

$H_1: \mu \neq 178$

The t-test statistics is determined by using the formula:

$t = \dfrac{X - \mu}{\dfrac{\sigma}{\sqrt{n}}}$

$t = \dfrac{177.5 - 178}{\dfrac{2}{\sqrt{25}}}$

$t = \dfrac{-0.5}{\dfrac{2}{5}}}$

$\mathbf{t= -1.25}$

Degree of freedom df = n- 1

Degree of freedom df = 25 - 1

Degree of freedom df = 24

At the level of significance ∝ = 0.05, the critical value = 2.064

Decision rule: To reject the null hypothesis if the test statistics is greater than the critical value at 0.05 level of significance

Conclusion: We fail to reject the null hypothesis since the test statistics is lesser than the critical value and we conclude that the difference exists due to chance since the test statistic is small

5 0

2 years ago