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3 years ago

Round the following to the nearest tens: 112 *

Mathematics

2 answers:

Brums [2.3K]3 years ago

8 0

Answer:

it 100

Step-by-step explanation

100 bc you have to round down just remember

5 or more go up

5 or less go downit's

kvasek [131]3 years ago

7 0

Answer:

110

Step-by-step explanation:

So tens is the 1 in the middle

And since 2 is 5 and less

You just keep it

And replace 2 with a 0

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A study by Consumer Reports showed that 64% of supermarket shoppers believe supermarket brands to be as good as national name br

Marianna [84]

Answer:

The calculated value |Z| = |-2.5| >2.326 at 0.05 level of significance

The alternative hypothesis is accepted at a 0.05 level of significance

The manager of Publix in Clemson believes 64% is too high for his own store

Step-by-step explanation:

Step:-1

Given that the consumer Reports showed that 64% of supermarket shoppers.

Given that the population proportion

P = 0.64

Given that random sample size 'n' = 100

Given that 52 believe the supermarket brands were as good as the national brands.

sample proportion

$p^{-} = \frac{x}{n} = \frac{52}{100} = 0.52$

Step:-2

Null hypothesis: The manager of the Publix in Clemson believes 64% is too low for his own store

μ < 0.64

Alternative Hypothesis:H₁:μ > 0.64

Test statistic

$Z = \frac{p-P}{\sqrt{\frac{PQ}{n} } }$

$Z = \frac{0.52-0.64}{\sqrt{\frac{0.64 X 0.36}{100} } }$

Z = -2.5

Level of significance = 0.05

Z₀.₀₅ = 2.326

The calculated value |Z| = |-2.5| >2.326 at 0.05 level of significance

Final answer:-

The null hypothesis is rejected at a 0.05 level of significance

The alternative hypothesis is accepted at a 0.05 level of significance

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Trey found three pieces of wire in his tool drawer. Here are their lengths (in centimeters). 9 , 5.59 , 16.8 What is the total l

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To find the total length we justadd the llength of the vBulletin peices together 9 +5.59 + 16 . 8 = 31.39 The total length is 31.39

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3 years ago

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ruslelena [56]

Answer:

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Step-by-step explanation:

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3 years ago

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kkurt [141]

Answer: -1

Step-by-step explanation:

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2 years ago

Read 2 more answers

8. Solve X=Students & Y=Teachers X+Y=24 X=3Y

Len [333]

Answer:

x=18, y= 6

Step-by-step explanation:

if x+y=24

x= 24- y

in second case

x= 3y

24_ y = 3y

24=4y

y= 6

hence x = 24 _6 = 18

5 0

3 years ago

Round the following to the nearest tens: 112 *​

Round the following to the nearest tens: 112 *