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Alina [70]
3 years ago
12

6 Use the given property of equality to complete each statement.

Mathematics
1 answer:
VMariaS [17]3 years ago
8 0

Answer:

  b+3 = 12

Step-by-step explanation:

The transitive property tells you that two things equal to the same thing are equal to each other

  a+5 = b+3

  a+5 = 12

  b+3 = 12 . . . . transitive property

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What are the common factors of 60 and 72?
ddd [48]
Answer: 1, 2, 3, 4, 6, 12

Calculation/Explanation:

Common factors are factors that both the numbers, in this case, 60 and 72, have in common. The factors listed above are all factors shared by 60 and 72.
3 0
3 years ago
• A researcher claims that less than 40% of U.S. cell phone owners use their phone for most of their online browsing. In a rando
antiseptic1488 [7]

Answer:

We failed to reject H₀

Z > -1.645

-1.84 > -1.645

We failed to reject H₀

p > α

0.03 > 0.01

We do not have significant evidence at a 1% significance level to claim that less than 40% of U.S. cell phone owners use their phones for most of their online browsing.

Step-by-step explanation:

Set up hypotheses:

Null hypotheses = H₀: p = 0.40

Alternate hypotheses = H₁: p < 0.40

Determine the level of significance and Z-score:

Given level of significance = 1% = 0.01

Since it is a lower tailed test,

Z-score = -2.33 (lower tailed)

Determine type of test:

Since the alternate hypothesis states that less than 40% of U.S. cell phone owners use their phone for most of their online browsing, therefore we will use a lower tailed test.

Select the test statistic:  

Since the sample size is quite large (n > 30) therefore, we will use Z-distribution.

Set up decision rule:

Since it is a lower tailed test, using a Z statistic at a significance level of 1%

We Reject H₀ if Z < -1.645

We Reject H₀ if p ≤ α

Compute the test statistic:

$ Z =  \frac{\hat{p} - p}{ \sqrt{\frac{p(1-p)}{n} }}  $

$ Z =  \frac{0.31 - 0.40}{ \sqrt{\frac{0.40(1-0.40)}{100} }}  $

$ Z =  \frac{- 0.09}{ 0.048989 }  $

Z = - 1.84

From the z-table, the p-value corresponding to the test statistic -1.84 is

p = 0.03288

Conclusion:

We failed to reject H₀

Z > -1.645

-1.84 > -1.645

We failed to reject H₀

p >  α

0.03 > 0.01

We do not have significant evidence at a 1% significance level to claim that less than 40% of U.S. cell phone owners use their phones for most of their online browsing.

8 0
3 years ago
A function is shown below
Scrat [10]

Answer:

  • 13

Step-by-step explanation:

<u>Put input value instead of the x into equation and calculate the output:</u>

  • y = -5x - 7

<u>x = -4, then find the value of y:</u>

  • y = -5(-4) - 7 = 20 - 7 = 13

The output is 13 when the input is -4

6 0
2 years ago
Read 2 more answers
Y=7<br> Y=-2x+1<br><br> Find the intersection
stealth61 [152]
I was going to answer but she gave you the answer sooo
3 0
3 years ago
Find the slope from the following table: x 2 3 4 y 4 5 6
Sindrei [870]

Answer:

the slope is 1

Step-by-step explanation:

The linear equation is y=x+2

7 0
3 years ago
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