3 years ago

What is 5/7 minus 1/4

Mathematics

2 answers:

Levart [38]3 years ago

8 0

If you subtract this problem the answer would be 13/28

Aneli [31]3 years ago

8 0

13/28
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Answer:

1) 4

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Step-by-step explanation:

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3 years ago

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Which is the greater quantity? 1/4 of a box or 40% of a box? *

Aleks04 [339]

Answer:

40%

Step-by-step explanation:

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3 years ago

Claim: Fewer than 94% of adults have a cell phone. In a reputable poll of 1004 adults, 86% said that they have a cell phone.

meriva

Answer: The value of test statistic = -10.67

Step-by-step explanation:

Test statistic for proportion:

$z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

, where p= population proportion

n= sample size

$\hat{p}$ = sample proportion

AS per given,

p=0.94, n= 1004, $\hat{p}=0.86$

$z=\dfrac{0.86-0.94}{\sqrt{\dfrac{0.94(1-0.94)}{1004}}}\\\\=\dfrac{-0.08}{\sqrt{\dfrac{0.0564}{1004}}}\\\\=\dfrac{-0.08}{\sqrt{0.0000561752988048}}\\\\=\dfrac{-0.08}{0.00749501826581}\\\\=-10.673756509\approx-10.67$