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2 years ago

3/4 times 7, find product as an improper fraction

Mathematics

2 answers:

Tasya [4]2 years ago

4 0

Well you do    3 7
   --- x --- and your answer would be 21/4.
   4 1

hope that helped

harina [27]2 years ago

4 0

21/4 is your answer because

3×7=21
4×1=4

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a nationwide study of american homeowners revealed that 65% own at least one lawn mower. a lawn equipment manufacturer, locate

svetoff [14.1K]

Answer:

$z=\frac{0.6841 -0.65}{\sqrt{\frac{0.65(1-0.65)}{497}}}=1.5938$

We have a right tailed test then the p value would be:

$p_v =P(z>1.5938)=0.0555$

Step-by-step explanation:

Information provided

n=497 represent the random sample of homes selected

X=340 represent the number of homes with one or more lawn

$\hat p=\frac{340}{497}=0.6841$ estimated proportion of homes with one or more lawn

$p_o=0.65$ is the value that we want to test

z would represent the statistic

$p_v$ represent the p value (variable of interest)

System of hypothesis

We want to check if proportion of homeowners owning lawn mowers in charlotte is higher than 65%m so then the correct hypothesis are .:

Null hypothesis: $p\leq 0.65$

Alternative hypothesis: $p > 0.65$

The statistic is given by:

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

Replacing the info given we got:

$z=\frac{0.6841 -0.65}{\sqrt{\frac{0.65(1-0.65)}{497}}}=1.5938$

We have a right tailed test then the p value would be:

$p_v =P(z>1.5938)=0.0555$

4 0

2 years ago

Will Give Brainliest!!

Georgia [21]

A. (-3,2)
B. rt(65)
C. (x+3)^2 + (y-2)^2 = 65

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The larger of two numbers is 15 more than three times the smaller number. If the sum of the two numbers is 63, find the numbers.

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Answer:

Let x = the smaller number

Let 3x + 15 = the larger number

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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It would be 5/9.
|~~~~~~~|
0. 5. 1
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