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3 years ago

Write twelve and sixteen thousand as a mixed decimal

1 answer:

5 0

12.016 because the 1 is in the tens place the 2 is in the ones place the other 1 on the right side of the decimal point is in the hundredths place and the 6 is in the thousandth place

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A test is made of H subscript 0 colon space mu space equals space 43 space space v e r s u s space space H subscript 1 colon spa

sweet [91]

Answer:

The calculated value Z = 1.39 <1.96 at 0.05 level of significance

The null hypothesis is accepted

Step-by-step explanation:

Step(i):-

Given that the mean of the Population = 43

Given that the mean of the sample = 47

Given that the standard deviation of the Population = 25

Given that the sample size 'n' = 76

Step(ii):-

Null hypothesis:H₀: μ = 43

Alternative Hypothesis: H₁: μ ≠ 43

Test statistic

$Z = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }$

$Z = \frac{47-43 }{\frac{25}{\sqrt{76} } }$

Z = 1.39

Level of significance = 0.05

The critical value = 1.96

Final answer:-

The calculated value Z = 1.39 <1.96 at 0.05 level of significance

The null hypothesis is accepted

4 0

3 years ago

Use a calculator to solve the equation. −8.5x + 0.49 = −2.91 The solution is x =

sineoko [7]

The answer is x = -0.4

4 0

3 years ago

Write the following equation in slope-intercept form. - y + 6 = 0 y = - 6/5 y = + 6 y = 5/6

irinina [24]

Answer:

y = +6

Step-by-step explanation:

-y + 6 = 0

Subtract 6 from both sides;

-y = -6

Divide both sides by -1

y = 6

3 0

3 years ago

Solve for x: x/8 - x/9 = 1

eduard

Answer:

hope this helps you!!!

Step-by-step explanation:

MARK AS BRAINLIEST!!

6 0

2 years ago

35 out of 50 students in a class wear glasses. What percentage of students in the class wear glasses?

Mashutka [201]

Answer:

70%

Step-by-step explanation:

Percentage is out of 100

35/50 change denominator

multiply both numerator and denominator by 2

70/100= 70%

8 0

2 years ago