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3 years ago

The drop box options: < > Please I need help:(

Mathematics

1 answer:

guajiro [1.7K]3 years ago

7 0

Answer:

c+2<1

on the number line, c is like -1.1 and 2-1.1 is .9 and .9>1

I am smoothbrain

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Help me with my home work please

kondor19780726 [428]

44/77 = 4/7 because its divided by 11. 4x11 is 44 and 4x7 is 77. Hope it helps!

3 0

3 years ago

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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

2 years ago

The percentage of households in the u.S. With cable television increased from 22.5%in 1980 to 68% in 2000. What was the increase

Arada [10]

Answer: The increase in the percent of household with cable television = 45.5%.

Step-by-step explanation:

Given : The percentage of households in the u.S. With cable television increased from 22.5% in 1980 to 68% in 2000.

i.e. Previous percentage in 1980 = 22.5%

New percentage in 2000= 68%

Now , the increase in percentage = (New percentage) - ( Previous percentage )

= 68% - 22.5%

= 45.5%

Hence, the increase in the percent of household with cable television = 45.5%.

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3 years ago

1. In what country did the government debate the merit of teaching students quadratics? 2. What modern technology would not be p

Alexxandr [17]

I would say number 2 but dont take my word for it

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3 years ago

Help?! Will mark brainliest

ycow [4]

Answer:

Number 3 is x=1.8

Number 4 is x=45

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2 years ago

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