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makkiz [27]
3 years ago
7

In 2012, Katie had 74

Mathematics
1 answer:
Bond [772]3 years ago
4 0

Answer:

Rate of change is increase of 51 followers per year.

Step-by-step explanation:

Given:

Number of followers in 2012 = 74

Number of followers in 2015 = 227

Therefore, increase in followers = 227 - 74 = 153

Duration for the change = 2015 - 2012 = 3 years

Rate of change of followers is given as:

\textrm{Rate of change}=\frac{Increase}{Duration}=\frac{153}{3}=51

Therefore, rate of change is increase of 51 followers per year.

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yanalaym [24]
22 is the answer to this math problem
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3 years ago
1. The US Mint has a specification that pennies have a mean weight of 2.5g. From a sample of 37 pennies, the mean weight is foun
Evgesh-ka [11]

Answer:

the pennies does not conform to the US mints specification

Step-by-step explanation:

z = (variate -mean)/ standard deviation

z= 2.5 - 2.4991 / 0.01648 = 0.0546

we are going to check the value of z in the normal distribution table, which is the table bounded by z.

checking for z= 0.0 under 55 gives 0.0219 (value gotten from the table of normal distribution)

we subtract the value of z from 0.5 (1- (0.5+0.0219)) = 0.4781 > 0.05claim

since 0.4781 > 0.05claim, therefore, the pennies does not conform to the US mints specification

the claim state a 5% significance level whereas the calculated significance level is 47.81%. therefore, the claim should be rejected

7 0
4 years ago
11.1 x 0.8 x 1.16 x 0.4
makkiz [27]
Answer: 4.12032 which is also equivalent to 4:12
3 0
3 years ago
A toy manufacturer produces the same toy in 4 different colors: red, blue, green, and yellow. The toy manufacturer has 5 product
BigorU [14]
<span>The correct answer:

What you do is:

5+5+4+2 which gives you 16

And 12 that are not green,

So,

</span>\frac{12}{16} = \frac{3}{4}

<span>A toy has an equal chance of traveling down any production line. " makes no sense to me</span>
4 0
3 years ago
Given the function h(x)= 5x-8, find the value of r such that h(3-r) = 6r
Keith_Richards [23]

the answer is r= 3h/h+6

4 0
3 years ago
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