3 years ago

How to ESTIMATE the QUOTIENT 74.3 ÷ 8

Mathematics

1 answer:

GaryK [48]3 years ago

7 0

You divide and simplify and get9.2875

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Assuming a speed limit is 105 km/hr, what is this in miles per hour?

Firdavs [7]

Answer:

65.2

Step-by-step explanation:

Every km is 0.62 miles and then you multiply that by 105. 105 x 0.62 =65.2

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2 years ago

A shopper at a clearance store is pleased to discover some microscopes on sale for $24 dollars each. The original price tags rea

dusya [7]

<h2>It has a 40% discount.</h2><h3 /><h3>40 - 24 = 16</h3><h3>16 ÷ 40 = 0.4</h3><h3>0.4 = 40%</h3><h3 /><h3><em>Please let me know if I am wrong.</em></h3><h3><em /></h3><h3><em>(That microscope is probably garbage.)</em></h3>

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4 years ago

What is a number that has 5 factors through 1-20

777dan777 [17]

16 beause 1x16 2x8 4x4 1 2 4 8 16

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3 years ago

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2x + 6 = 2(x+3)<br><br> A x=0<br> B no solution <br> C infinite many solutions

sineoko [7]

Step-by-step explanation:

2x + 6=2(x+3)

2x+6=2x+6

4x=0

x=0/4

No answer/no solution

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4 years ago

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It has long been stated that the mean temperature of humans is 98.698.6degrees°F. However, two researchers currently involved i

const2013 [10]

Answer:

The claim is false that the mean temperature of humans is less than 98.6°F

Step-by-step explanation:

Claim :The mean temperature of humans is less than 98.6°F

$H_0:\mu \geq 98.6^{\circ}F\\H_a:\mu< 98.6^{\circ}F$

They obtained 200 measurements

Sample size n =200

x = 98.3°F

$\sigma = 11^{\circ}F$

Since n > 30

So we will use z test

Formula : $z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}$

Substitute the values in the formula :

$z=\frac{98.3-98.6}{\frac{11}{\sqrt{200}}}$

$z=−0.385$

Refer the z table for p value

p value = 0.3520

α= 0.01

p value > α

So, we accept the null hypothesis.

So, the claim is false that the mean temperature of humans is less than 98.6°F .

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4 years ago