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3 years ago

PLEASE HELP ME WITH THIS GEOMETRY HW!! Let me know if I got my answers right and please help me with the blank ones

Mathematics

1 answer:

artcher [175]3 years ago

8 0

Step-by-step explanation:

Your answers for 1 and 2 are correct. MN and LN are both radii of the circle, and therefore equal. And NK can be found using Pythagorean theorem.

To find LP (and PM), we can use similar triangles:

LN / NK = LP / LK

10 / 26 = LP / 24

LP ≈ 9.23

PM ≈ 9.23

LM ≈ 2 × 9.23 = 18.46

To find NP, we can again use similar triangles.

NP / NL = NL / NK

NP / 10 = 10 / 26

NP ≈ 3.85

NQ is a radius of the circle, so it is equal to 10. PQ is therefore:

PQ ≈ 10 − 3.85 = 6.15

As you found, QK = 26 − 10 = 16.

Before we find LR, let's find RK using similar triangles.

RK / QK = NK / LK

RK / 16 = 26 / 24

RK ≈ 17.33

LR ≈ 24 − 17.33 = 6.67

As you found, MK = 24.

And finally, MS = LR ≈ 6.67.

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Step-by-step explanation:

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2 years ago

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3 years ago

According to an NRF survey conducted by BIGresearch, the average family spends about $237 on electronics (computers, cell phones

schepotkina [342]

Answer:

7.64% probability that they spend less than $160 on back-to-college electronics

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 237, \sigma = 54$

Probability that they spend less than $160 on back-to-college electronics

This is the pvalue of Z when X = 160. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{160 - 237}{54}$

$Z = -1.43$

$Z = -1.43$ has a pvalue of 0.0763

7.64% probability that they spend less than $160 on back-to-college electronics

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3 years ago

Bicycle Inc. rents bikes for $11 plus $5 per hour. Maria paid $51 to rent a bike. For how many hours, h, did she rent the bike?

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Answer:

She spent 8 hours with the bike. She did rent the bike.

Step-by-step explanation:

The $11 fee is only a one time payment. The $5 is every hour so 5x8 is 40+11 is 51.

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3 years ago

At what value of x do the graphs of the equations below intersect?

Bogdan [553]

Answer:

Step-by-step explanation:

The intersection is the point where two equations meet. It is calculated by substituting terms into the equations involved. For the given systems of equation, calculations are as follows:

2x - y = 6

y = 2x - 6

We substitute the equation above to the second equation.

5x + 10y = –10

5x + 10( 2x - 6 )= –10

Simplifying,

5x + 20x - 60 = -10

25x = 50

x = 2

Therefore, the intersection has the value of x equal to 2.

3 0

3 years ago

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PLEASE HELP ME WITH THIS GEOMETRY HW!! Let me know if I got my answers right and please help me with the blank ones​

PLEASE HELP ME WITH THIS GEOMETRY HW!! Let me know if I got my answers right and please help me with the blank ones