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3 years ago

What are m and b in the linear equation, using the common meanings of m and b?

Mathematics

1 answer:

SVETLANKA909090 [29]3 years ago

6 0

If you simplify the equation you get y= 3x+7 so m or the slope will be 3 and b or the y intercept is 7

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Express the angular speed of 60 revolutions per second in radians per second

BabaBlast [244]

Answer:

120π or 377.00 radians per second ( to nearest hundredth).

Step-by-step explanation:

The number of radians in one revolution = 2π, so 60 revs per second =

60 * 2π = 120π radians per second.

8 0

4 years ago

Ms.Hatcher bought a pencil decoration shown below for her bulletin board. If a= 11 in and b= 25in what is the area of this penci

andriy [413]

Answer:

The area of the pencil is 36 inches.

Step-by-step explanation:

3 0

3 years ago

PLZ HELP WILL MAKE BRAINLEIST

Jlenok [28]

(1,2)
The solution is where the lines intersect so you can see they intersect at (1,2)

3 0

3 years ago

Read 2 more answers

1) Ten samples of a process measuring the number of returns per 100 receipts were taken for a local retail store.

densk [106]

Answer:

E) .0863

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The population proportion have the following distribution

$p \sim N(p,\sqrt{\frac{p(1-p)}{n}})$

Solution to the problem

For this case we can find the sample proportion for each observation with the following formula:

$\hat p = \frac{X}{n}$

Where X represent the number of returns and n =100 for each case since the standard value used. Using the last formula we got:

$p_1 = \frac{10}{100}=0.1$

$p_2 = \frac{9}{100}=0.09$

$p_3 = \frac{11}{100}=0.11$

$p_4 = \frac{7}{100}=0.07$

$p_5 = \frac{3}{100}=0.03$

$p_6 = \frac{12}{100}=0.12$

$p_7 = \frac{8}{100}=0.08$

$p_8 = \frac{4}{100}=0.04$

$p_9 = \frac{6}{100}=0.06$

$p_{10} = \frac{11}{100}=0.11$

And now witht those values we can find the sample mean of proportions with the following formula:

$hat p = \frac{\sum_{i=1}^n p_i}{n}= \frac{0.1+0.09+0.11+0.07+0.03+0.12+0.08+0.04+0.06+0.11}{10}=0.081$

And we can find the standard error with the following formula:

$SE= \sqrt{\frac{\hat p (1-\hat p)}{n}}=\sqrt{\frac{0.081(1-0.081)}{10}}=0.0863$

So then the best option on this case is given by:

E) .0863

6 0

3 years ago

If f(x)=x^3-x what is the average rate of change of f(x) over the interval [1, 5]?

Serjik [45]

Average rate of change= [f (x2)-f (x1)]/(x2-x1)
(the same formula of the slope)
x2=5
x1=1
f (x2)=5^3-1 =124
f (x1)= 1^3-1 =0
(124-0)/(5-1) = 31

6 0

4 years ago