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elixir [45]
3 years ago
9

What is the relationship between 0.8 ÷ 10^2 and 0.8×10^2

Mathematics
1 answer:
AleksandrR [38]3 years ago
5 0

0.8\times10^2\ \text{is 10,000 times greater than}\ 0.8\div10^2\\\\\dfrac{0.8\times10^2}{0.8\div10^2}=\dfrac{10^2}{1\div10^2}=\dfrac{10^2}{\frac{1}{10^2}}=10^2\times10^2=10^4=10,000

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A a squirrel ran 9 miles in one hour. which expression can be used to determine its speed in miles per hour?
julsineya [31]

The unit rate is 9 miles per hour.

In order to find how much its unit rate will be you need to use this expression below.

<em>n = number of hours</em>

<em>m = number of miles </em>

m divided by n or <em>m/n</em>

In order to find how much does he travel in given hours see this below.

<em>n = number of hours</em>

<em>m = number of miles for 1 hour</em>

<em>nm or n * m</em>


5 0
3 years ago
Is 5/18 a rational number ?
pentagon [3]

Answer:

5/18 is a rational number because a rational number is any integer,fraction terminating decimal,or repeating decimal.

4 0
2 years ago
A university with a high water bill is interested in estimating the mean amount of time that students spend in the shower each d
yuradex [85]

Answer:

a) lower limit = 4.295 minutes

b) upper limit = 6.365 minutes

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x+/-zr/√n

Given that;

Mean x = 5.33 minutes

Standard deviation r = 1.33 minutes

Number of samples n = 11

Confidence interval = 99%

z(at 99% confidence) = 2.58

Substituting the values we have;

5.33+/-2.58(1.33/√11)

5.33+/-2.58(0.401010088288)

5.33+/-1.0346060277

5.33+/-1.035

= ( 4.295, 6.365) minutes

Therefore at 99% confidence interval (lower, upper limit) = ( 4.295, 6.365) minutes

a) lower limit = 4.295 minutes

b) upper limit = 6.365 minutes

3 0
3 years ago
13 points<br>What is the length of YZ? Help<br>​
Bond [772]

Answer:

Probably 15cm. mostly likely

5 0
2 years ago
Read 2 more answers
After 3.5 hours, Peyton had traveled 161 miles. If she travels at a constant speed, how far will she have traveled in 4 hours
Flura [38]

Answer:

1.3 more miles i think

Step-by-step e

3.5 hours equal 210 and i divided it by 163 and thats what came up

4 0
2 years ago
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