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Fofino [41]
3 years ago
8

I need help please ​

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
5 0

Answer:

x=90

y=43

Step-by-step explanation:

You might be interested in
A right rectangular prism is 5 and 1/4 inches wide 12 and 1/2 inches long and 4 inches tall what is the volume of the prism
Goryan [66]

Answer:

29 in ^3

Step-by-step explanation:

6 sides

2 of which are smaller than the other 4.

12 x 1/2 x 4 = 4 longer sides

5 x 1/4 x 4 = 2 shorter sides

12 x 1/2 = 6

6 x 4 = 24

5 x 1/4 = 1.25

1.25 x 4 = 5

5 + 24 = 29

29 in ^3

8 0
3 years ago
A person drilled a hole in a die and filled it with a lead​ weight, then proceeded to roll it 200 times. Here are the observed f
Olin [163]

Answer:

\chi^2 = \frac{(26-33.33)^2}{33.33}+\frac{(32-33.33)^2}{33.33}+\frac{(44-33.33)^2}{33.33}+\frac{(37-33.33)^2}{33.33}+\frac{(27-33.33)^2}{33.33}+\frac{(34-33.33)^2}{33.33}=6.7

Now we can calculate the degrees of freedom for the statistic given by:

df=6-1=5

And we can calculate the p value given by:

p_v = P(\chi^2_{5} >6.7)=0.244

Since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis so then we can conclude that  the outcomes are equally likely

Step-by-step explanation:

We need to conduct a chi square test in order to check the following hypothesis:

H0: There is no difference in the frequencies

H1: There is a difference in the frequencies

The level of significance assumed for this case is \alpha=0.01

The statistic to check the hypothesis is given by:

\sum_{i=1}^n \frac{(O_i -E_i)^2}{E_i}

The observed values are:

Value            1     2    3    4    5     6

Frequency  26  32  44  37  27  34

And the expected values are for this case the same E_i = \frac{200}{6}= 33.33

And now we can calculate the statistic:

\chi^2 = \frac{(26-33.33)^2}{33.33}+\frac{(32-33.33)^2}{33.33}+\frac{(44-33.33)^2}{33.33}+\frac{(37-33.33)^2}{33.33}+\frac{(27-33.33)^2}{33.33}+\frac{(34-33.33)^2}{33.33}=6.7

Now we can calculate the degrees of freedom for the statistic given by:

df=6-1=5

And we can calculate the p value given by:

p_v = P(\chi^2_{5} >6.7)=0.244

Since the p value is higher than the significance level we have enough evidence to FAIL to reject the null hypothesis so then we can conclude that  the outcomes are equally likely

7 0
4 years ago
A geometry class has a pizza party. There are 14 students that will have pizza. Each pizza has 8 slices. The teacher wants to bu
german
Buy 2 pizzas.... ...............
7 0
4 years ago
What is the measure of WX shown in the diagram below?
bekas [8.4K]

angle S = (Angle TR - Angle WX )/2

Replace the known angles:

34 = (93 - Angle WX) /2

Multiply both sides by 2:

68 = 93 - Angle WX

Solve for WX:

WX = 93 - 68

WX = 25

The answer is 25 (:

4 0
3 years ago
5. A 12-ounce jar of jam costs $2.40. A 16-ounce jar costs $4.00. What is the
scoray [572]

The difference in the cost per ounce is $0.05 per ounce

<h3>Fractions and proportion</h3>

Fractions are written as the ratio of two integers

If a 12-ounce jar of jam costs $2.40, the cost per ounce will be:

Unit cost = 2.40/12

Unit cost = $0.2

Similarly, if a 16-ounce jar costs $4.00, the price of a ounce will be:

Unit cost = 4/16

Unit cost. =$0.25

difference = $0.25 - $0.2

difference = $0.05

Hence the difference in the cost per ounce is $0.05 per ounce

Learn more on unit price here: brainly.com/question/7718596

#SPJ1

6 0
2 years ago
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