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lukranit [14]
3 years ago
14

the equation 4(x+9)=76 models this situation which choice shows the sequence of operations neede to slove this problem using bot

h arithmetic and algebra
Mathematics
1 answer:
laiz [17]3 years ago
5 0

Answer:

Step-by-step explanation:

Here you go mate

Use PEMDAS

Parenthesis,Exponent,Multiplication,Division,Addition,Subtraction

Step 1

4(x+9)=76  Equation/Question

Step 2

4(x+9)=76  Remove parenthesis by multiplying 4

4x+36=76

Step 3

4x+36=76  Subtract 36 from sides

4x=40

Step 4

4x=40  Divide sides by 4

answer

x=10

Hope this helps

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a pharmacist believes the proportion of prescriptions that are antibiotics is decreasing. the pharmacist would like to test the
Lunna [17]

Since,Z < -1.65 we reject H₀

i.e there is enough evidence for the pharmacist to reject the null hypothesis

What is the null hypothesis?

Conjectures used in statistical tests, which are formal techniques for drawing conclusions or making judgments based on data, include the null hypothesis and the alternative hypothesis. The hypotheses, which are based on a sample of the population, are suppositions regarding a statistical model of the population. The tests are essential components of statistical inference and are frequently used to distinguish between statistical noise and scientific claims when interpreting experimental data in science.

"The null hypothesis is the proposition under investigation in a statistical significance test. The significance test is intended to determine how strong the evidence is against the null hypothesis. The null hypothesis is typically a claim that there is "no effect" or "no difference.H₀ is a common way to represent it.

The alternative hypothesis is the assertion that is being compared against the null hypothesis. Two symbols are H₁ and Hₐ.

Calculation:

Here H₀:  P=0.52

  H₁: P<0.52

Test statistic, Z = -1.89

critical value = -1.65

Decision rule: If zZ< -1.65 we reject H₀ and vice-versa

Since,Z < -1.65 we reject H₀

i.e there is enough evidence for the pharmacist to reject the null hypothesis

Learn more about the null hypothesis here:

brainly.com/question/13776238

#SPJ4

Disclaimer: The question was given incorrectly on the portal. Here is the correct question

Question:

6 0
1 year ago
For a population with u=100 and a=20, what is the z-score that corresponds to x=90?
max2010maxim [7]
I guess that u = μ & that a=σ. If so:

μ =100 & that σ =20 & x=20

Z score = (x-μ) / σ  ==> Z score = (90-100)/20 ==> Z = - 0.5
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3 years ago
He fills the pencil holder with sand before he wraps it to make it feel like a heavy, expensive gift. How much sand will he need
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Answer:

Answer choice d

Step-by-step explanation:

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2 years ago
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Artemon [7]

Answer:

3

Step-by-step explanation:

sqrt9 = 3

8 0
3 years ago
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