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3 years ago

10

Justin has a roll of tape 549 centimeters long. he cuts the tape into pieces that are 9 centimeters long. How many 9 centmeter p

ieces can Justin cut from his roll of tape?

1 answer:

Olenka [21]3 years ago

5 0

Answer:

61

Step-by-step explanation:

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nasty-shy [4]

Answer:

$C=69.1^{\circ}$

Step-by-step explanation:

The Law of Cosines is given as:

$c^2=a^2+b^2-2ab\cos C$ .

Plugging in given values, we get:

$16^2=8^2+17^2-2\cdot 8\cdot 17\cdot \cos C,\\\cos C=\frac{-97}{-272},\\C=\arccos(\frac{97}{272}),\\C=\fbox{$69.1^{\circ}$}$ .

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3 years ago

/viewform?hr submission=Chclk4feKBIQ.

Gennadij [26K]

Answer:

c) .22

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:

$\alpha = \frac{1-0.95}{2} = 0.025$

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 $1-0.025 = 0.975$ , so $z = 1.96$

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:

$\sigma = 2.5, n = 500$

Then

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

$M = 1.96*\frac{2.5}{\sqrt{500}}$

$M = 0.22$

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A line is perpendicular to y=(-1/5)×+1 and intersects the point (-5,1)

svet-max [94.6K]

hope it helps u to get your abswer and me to be ranked as brainliest:)))

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3 years ago

8 friends attend a read a thon. they take turns reading for a total of 3 hours. If each friend reads for the same amount of time

viva [34]

(3 hours) / (8 friends) = <em>3/8</em> hour per friend

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3 years ago

Which of the following shows the polynomial below written in descending

liraira [26]

Answer:

C.

Step-by-step explanation:

Looks like C ( if the polynomial in the question contains x6 NOT x).

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3 years ago

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