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4 years ago

In the typing world,80 words per minute is considered acceptable.how many words per 30 minutes is this

1 answer:

8 0

W = words per minute = 80
t = time in minutes = 30

The total number of words per 30 minutes is w*t = 80*30 = 2400 words

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Find the greatest common factor of the following monomials monomials 44a3 4a

Anika [276]

Hey there :)

44a³ and 4a

Let us do the numbers and variables separately

44 and 4 are both multiples of each other
Therefore, the GCF is 4

a³ and a, a will be the GCF since a³ is not present on both

Finally, 4a will be the GCF

5 0

3 years ago

∠1 is a supplement of ∠2, ∠2 is a complement of ∠3, and m∠1=115∘. Find m∠2 - ∠3

Tems11 [23]

Answer:

180-115=65

<2=65

90-65=25

<3=25

65-25=40

The answer is 40

Step-by-step explanation:

7 0

3 years ago

A sample of 8 buttons is randomly selected and the following diameters are measured in inches. Give a point estimate for the pop

kenny6666 [7]

Answer:

$\bar X= \frac{1.83+1.85+1.79+1.73+1.69+1.74+1.76+1.70}{8}= 1.76125$

Now we can estimate the population variance with the sample variance given by:

$s^2 = \frac{\sum_{i=1}^n (x_i -\bar X)^2}{n-1}$

And replacing we got:

$s^2 = 0.0033839$

And the estimator for the population deviation $\sigma$ is given by :

$\hat \sigma = \sqrt{s^2}= \sqrt{0.0033839}= 0.058172$

Step-by-step explanation:

For this case we have the following data given:

1.83,1.85,1.79,1.73,1.69,1.74,1.76,1.70

First we need to calculate the mean with the following formula:

$\bar X= \frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X= \frac{1.83+1.85+1.79+1.73+1.69+1.74+1.76+1.70}{8}= 1.76125$

Now we can estimate the population variance with the sample variance given by:

$s^2 = \frac{\sum_{i=1}^n (x_i -\bar X)^2}{n-1}$

And replacing we got:

$s^2 = 0.0033839$

And the estimator for the population deviation $\sigma$ is given by :

$\hat \sigma = \sqrt{s^2}= \sqrt{0.0033839}= 0.058172$

7 0

4 years ago

The perimeter of a rectangular garden is 372 feet. if the width of the garden is 88 feet, what is its length?

Likurg_2 [28]

P=2(w+l)
372=2(88+l)
372÷2=(88+l)
186-88= l
98= l

4 0

3 years ago

Which expression is equivalent to 3√x^5?

Elanso [62]

∛x^5 y
= (x)^5/3 y^1/3

answer
B. second option

6 0

4 years ago