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4 years ago

What's 26 divided by 37.70

Mathematics

2 answers:

Oliga [24]4 years ago

7 0

This is ur answer <span>0.68965517241</span>

Dmitrij [34]4 years ago

3 0

0.689 I hope this helps a lot to you

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The tortoise and the hare agree to a re-match. As they begin the race, the tortoise plods along slowly but confidently at 2 ½ mp

Lorico [155]

The tortoise ran a distance of 1.875 miles

The distance traveled or covered is obtained using the relation :

Distance = speed × time

Using the the time it took the hare to reach the finish line:

Time taken = 45 minutes (3/4 hours)

The speed of the tortoise = 2 1/2 mph = 2.5mph

Hence, the distance covered by the tortoise :

(2.5 mph × 3/4 hours) = 1.875 miles

The distance covered by the tortoise is 1.875 miles

Learn more : brainly.com/question/18109354

6 0

3 years ago

An IQ test is designed so that the mean is 100 and the standard deviation is 18 for the population of normal adults. Find the sa

melisa1 [442]

Answer:

At least 98 people need to be sampled. It is not a huge number, that is, it is not difficult to sample 98 people, so it is a reasonable sample size for a real world calculation.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.9}{2} = 0.05$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.05 = 0.95$ , so $z = 1.645$

Now, find the margin of error M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

In this question:

We need a sample size of at least n.

n is found when M = 3. We have that $\sigma = 18$ .

$M = z*\frac{\sigma}{\sqrt{n}}$

$3 = 1.645*\frac{18}{\sqrt{n}}$

$3\sqrt{n} = 1.645*18$

Simplifying by 3

$\sqrt{n} = 1.645*6$

$(\sqrt{n})^{2} = (1.645*6)^{2}$

$n = 97.41$

Rounding up,

At least 98 people need to be sampled. It is not a huge number, that is, it is not difficult to sample 98 people, so it is a reasonable sample size for a real world calculation.

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3 years ago

-2(-3)-3[-3(-2+6)+2(2-4)(-2)]+2(-1)<br><br> does this question = 12?

rusak2 [61]

It’s 16 look at it a bit closer if you get confused step away and clear your mind a bit

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3 years ago

A random survey asked two groups of 100 women whether they wear shorts, long pants, or a dress most often. The results are shown

Alenkinab [10]

Answer:

Pants

Step-by-step explanation: I got it right on Ed

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3 years ago

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Find the term that must be added to the equation x2−10x=1 to make it into a perfect square

adoni [48]

Answer:

Step-by-step explanation:

If you add 25 to both sides, you get

x^2-10x+25=26.

Now, you can simplify the left side into a perfect square

(x-5)^2=26

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3 years ago