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3 years ago

How many times does 8 go into 66

Mathematics

1 answer:

Romashka [77]3 years ago

7 0

8 will go into 66 , 8.25 times

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Please help me with this.

anastassius [24]

Answer:

12 ( 12 + 1 ) = 72 + 84

Step-by-step explanation:

6 0

2 years ago

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1. The Crusaders have won 11 games and lost 9 games this season. What percent of its games

Nat2105 [25]

C. 55%
The crusaders won 55% of 20 games

6 0

2 years ago

Need help please!! Will give points

Nataly [62]

Answer:

1. $\bar X=5.10$

2. $\sigma=0.47$

3. $\sigma^2=0.22$

Step-by-step explanation:

QUESTION 1

The given data set for the expenditure is

$4.85,5.10,5.50,4.75,4.50,5.00,6.00$

The formula for calculating the mean is given by,

$\bar X=\frac{\sum x}{n}$

We need to add all the expenditure and divide by the total number of days.

$\bar X=\frac{4.85+5.10+5.50+4.75+4.50+5.00+6.00}{7}$

This gives us,

$\bar X=\frac{35.7}{7}$

$\Rightarrow \bar X=5.10$ to the nearest hundredth.

QUESTION 2

The standard deviation of the data set is given by the formula;

$\sigma =\sqrt{\frac{\sum(x-\bar X)^2}{n} }$

This implies that,

$\sigma =\sqrt{\frac{(4.85-5.10)^2+(5.10-5.10)^2+(5.50-5.10)^2+(4.75-5.10)^2+(4.50-5.10)^2+(5.00-5.10)^2+(6.00-5.10)^2}{7} }$

This will give us,

$\sigma =\sqrt{\frac{(-0.25)^2+(0.00)^2+(0.40)^2+(-0.35)^2+(-0.60)^2+(-0.10)^2+(0.90)^2}{7} }$

$\sigma =\sqrt{\frac{0.0625+0+0.16+0.1225+0.36+0.01+0.81}{7} }$

$\sigma =\sqrt{\frac{61}{280} }$

$\sigma =0.466775$

to the nearest hundredth,

$\sigma =0.47$ .

QUESTION 3

The variance is the square of the standard deviation.

$\sigma^2 =(0.46675)^2$

$\sigma^2 =0.217857$

To the nearest hundred gives,

$\sigma^2 =0.22$

3 0

3 years ago

Inscribed Angles, Find the value of Z. PLS HELP ASAP!:)

Natali [406]

Answer:

20°

Step-by-step explanation:

By inscribed angle theorem:

(Measure of inscribed angle is half of the measure of intercepted arc. )

$z = \frac{1}{2} \times 40 \degree = 20 \degree$

5 0

2 years ago

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Add using a number line 5/6+(-1 1/6) drag and drop word sum to the correct value on the number line

wel

To find this answer, the second value needs to be converted into an improper fraction. (-1 1/6) becomes (-7/6) when properly converted. Then, 5/6 + (-7/6) becomes the same as (5/6) - (7/6). Since both have common denominators, the numerators can simply be subtracted: (5-7) = -2. This leaves a sum of (-2/6), which can be reduced to (-1/3).

7 0

3 years ago