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nekit [7.7K]
4 years ago
12

I’m confused on this one

Mathematics
1 answer:
Mekhanik [1.2K]4 years ago
6 0

In this parallelogram, angle A and B add up to 180 (they are supplementary). Set up an equation like this and solve:


3x + 4 + 143 = 180


3x + 147 = 180


3x = 33


x = 11


The measure of x is 11°.

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Suppose that the duration of a particular type of criminal trial is known to be normally distributed with a mean of 22 days and
Alika [10]

Answer:

25.5 days

Step-by-step explanation:

Mean number of days (μ) = 22 days

Standard deviation (σ) = 6 days

Z-score for the 72nd percentile (according to tabulated values) = 0.583

The z-score for any number of days, X, is determined by:

z=\frac{X-\mu}{\sigma}

The value of X that is greater than 72% of the trial times is:

0.583=\frac{X-22}{6}\\ X=25.5\ days

Therefore, 72% of all of these types of trials are completed within 25.5 days.

6 0
4 years ago
Your EZ Pass account begins with $80. It costs you $4/day. Write an equation
vivado [14]

Answer:

The equation is A(d) = 80 - 4d

Step-by-step explanation:

Linear function:

A linear function for the amount of money in an account after t days is given by:

A(d) = A(0) - md

In which A(0) is the initial value and m is the daily cost.

Your EZ Pass account begins with $80. It costs you $4/day.

This means that A(0) = 80, m = 4

So

A(d) = A(0) - md

A(d) = 80 - 4d

7 0
3 years ago
Rita has 20 crayons.<br>Nora has 15 more crayons than Rita.<br>How many crayons does Nora have?​
mario62 [17]

Answer:

35 crayons.

(20 + 15 = 35)

3 0
3 years ago
Read 2 more answers
A circle has a radius of 9 cm and a sector of the circle has an arc length of 9. 7cm
frutty [35]

Answer:

S = R θ      where θ is in radians

If θ  = 2 pi then S = 2 pi R       the circumference of the circle

θ = S / R = 9.7 / 9 = 1.08 rad

Since 1 rad = 360 / (2 pi) = 57.3 deg

the angle included = 1.08 rad * 57.3 deg/rad = 61.9 deg

7 0
3 years ago
Find the missing length indicated.
FinnZ [79.3K]

Answer:

I think the answer is 8 you should search it up to make sure

7 0
3 years ago
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