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Sindrei [870]
3 years ago
9

-2.5(4w-4)= -6 and check​

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
3 0

Answer:

y=60

Step-by-step explanation:

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Kianna is trying to run a certain number of miles by the end of the month. If Kianna is 75% of the way to achieving her goal and
Scorpion4ik [409]

Answer:

una stoy bien dias

Step-by-step explanation:

5 0
3 years ago
Test the claim that the proportion of people who own cats is larger than 40% at the 0.025 significance level. The null and alter
Alecsey [184]

Answer:

H 0 : p ≤ 0.4 H a : p > 0.4

And based on the alternative hypothesis we can conclude that we have a right tailed test

Step-by-step explanation:

Data given

n=300 represent the random sample size

\hat p=0.45 estimated proportion of people with cats

p_o=0.40 is the value that we want to test

\alpha=0.025 represent the significance level

z would represent the statistic

p_v represent the p value

Null and alternative hypothesis

We want to test if the true proportion of people with cats is higher than 0.4, so then the best alternative is:  

Null hypothesis:p\leq 0.4  

Alternative hypothesis:p > 0.4  

H 0 : p ≤ 0.4 H a : p > 0.4

And based on the alternative hypothesis we can conclude that we have a right tailed test

The statistic is given by:  

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing we got:

z=\frac{0.45 -0.4}{\sqrt{\frac{0.4(1-0.4)}{300}}}=1.768  

5 0
3 years ago
Use an algebraic equation to find the measure of each angle that is represented in terms of X
professor190 [17]

Answer:

16, 74

Step-by-step explanation:

3x +10 + 12x +50 = 90

15x + 60 = 90

15x = 90 -60

15x = 30

x = 30/15

x = 2

3x + 10 = 3*2 +10 = 6 +10 = 16

12x + 50 = 12*2 +50 = 24 + 50 = 74

5 0
3 years ago
The difference between 3 times x and 4
kirill115 [55]
3 times x = 3x

the difference between 3x and 4 mean that you need to subtract, so the answer is...

3x - 4


3 0
3 years ago
A triangle has side Lengths of 6, 8, and 10. is it a right triangle? Explain
Verdich [7]

Answer:

Yes, it is

Step-by-step explanation:

When the side lengths of a triangle are in the ratio 3: 4: 5, then it is a right triangle.

7 0
3 years ago
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