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VMariaS [17]
3 years ago
13

Simplify using order of operations: (5 – 2) + 23.

Mathematics
2 answers:
Phoenix [80]3 years ago
6 0
Step 2: 3+23
The answer is 26
Rudik [331]3 years ago
5 0
The answer is 25 but i can't exactly show how


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According to a study conducted by an​ organization, the proportion of americans who were afraid to fly in 2006 was 0. 10. A rand
algol13

According to the the concept of hypothesis testing, there is no evidence that the proportion of Americans who are afraid to fly has decreased.

Hypothesis testing:

Basically, in math hypothesis, it test the population on the basis of the sample data taken from the population using a simple random sampling.

Given,

According to a study conducted by an​ organization, the proportion of Americans who were afraid to fly in 2006 was 0. 10. A random sample of 1300  Americans results in 117 indicating that they are afraid to fly.

Now, we need to explain why this is not necessarily evidence that the proportion of Americans who are afraid to fly has.

While we looking into the given question,

Sample size, n = 1300

Number of Americans who were afraid to fly, x = 117

Now, we have to computing the sample proportion of Americans who afraid to fly,

Therefore, p = 117 / 1300 = 0.09

Then the Formulation of Hypotheses is written as,

Here the Null Hypothesis: H0: p≥0.10

And the alternative Hypothesis: Ha: p<0.10

Then the Left-tailed test of Test statistic is written as,

Here Let us assume that the level of significance, α = 0.05.

Then the Critical value, z≈−1.645

And the Decision rule is written as

If the value of  |z|<|z0.05|≈1.645: Do not reject the null hypothesis.

Otherwise If value of  |z|≥|z0.05|≈1.645: Reject the null hypothesis.

To know more about Hypothesis testing here.

brainly.com/question/28920252

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5 0
9 months ago
What’s the value of X plz hurry it’s due soon
Serhud [2]

Answer:

x = 18

Step-by-step explanation:

The angle vertically opposite (5x + 2) is also (5x + 2), then

(5x + 2) and (5x - 2) are same- side interior angles and sum to 180° , that is

5x + 2 + 5x - 2 = 180

10x = 180 ( divide both sides by 10 )

x = 18

6 0
2 years ago
The area of a rectangle is (x4 4x3 3x2 – 4x – 4), and the length of the rectangle is (x3 5x2 8x 4). if area = length × width, wh
viva [34]

Answer:

Area = x4 + 4x3 + 3x2 - 4x - 4

Length = x3 +5x2 + 8x + 4

Width = Area / Length.

Performing long division with polynomial.

x4 + 4x3 + 3x2 - 4x - 4 / x3 + 5x2 + 8x + 4 = x-1

Width = x-1

Step-by-step explanation:

3 0
2 years ago
If one pan takes 12 cupcakes, how many batches will she have to bake for<br> 105 cupcakes?
Zielflug [23.3K]

Answer: 9

Step-by-step explanation: 105/12=8.75

8 batches are not enough so she should do it one more time to finish

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2 years ago
emanuel played a game where he got a point if he drew s red marble out of a bag and flipped a coin that landed on heads. what is
Reptile [31]

Answer:

30%

Step-by-step explanation:

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2 years ago
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