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timama [110]
3 years ago
10

What is the value of the expression 9 + ( fraction 1 over 2 )4 ⋅ 48? (1 point)

Mathematics
1 answer:
jek_recluse [69]3 years ago
5 0

Answer:

A. 12

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

9 + (1/2)⁴ · 48

<u>Step 2: Evaluate</u>

  1. Exponents:                                                                                                        9 + 1/16 · 48
  2. Multiply:                                                                                                             9 + 3
  3. Add:                                                                                                                   12
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Using Hypothesis testing,

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We have given that,

A study which is conducted for check an expectant mother's cigarette smoking has any effect on the bone mineral content of her otherwise healthy child.

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a) the two samples are independent since they are different types of mothers, smoking mothers and non smoking mothers

b)H₀: an expectant mother's cigarette smoking has any not effect on the bone mineral content of her otherwise healthy child.

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c) Test statistic:

t = (x₁-bar - x₂-bar )/S (√1/n₁+1/n₂)

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Using the critacal table critical t is

Critical t = ±1.970065

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Thus, an expectant mother's cigarette smoking has not effect on the bone mineral content of her otherwise healthy child.

To learn more about Hypothesis testing, refer:

brainly.com/question/4232174

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