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ipn [44]
3 years ago
11

Please help! I'll give brainiest!

Mathematics
2 answers:
harina [27]3 years ago
7 0
The answer I got was c
Scrat [10]3 years ago
6 0

Answer:

the answer is 12/2

Step-by-step explanation:

just took test

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SWAN85 help please please
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Answer:

first y=|x+6|

y=2x+7,y=2x-7 parallel lines

Step-by-step explanation:

first y=|x+6|

y=2x+7,y=2x-7 parallel lines

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3 years ago
Find the area. Simplify your answer.
love history [14]

Answer:

10x + 9

Step-by-step explanation:

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Does anyone know how to get more points in khan academy mastery challenge??
vaieri [72.5K]

Answer:

I would say getting all the them right.

Step-by-step explanation:

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Read 2 more answers
Given that the triangles are similar, find the value of x. Find the length of NR.<br> S<br> T<br> 40<br> 60<br> R<br> 2x-2<br> 8
andrew-mc [135]

Answer:

NR = 12

Step-by-step explanation:

Given that both trjangles are similar, therefore, it follows that their corresponding side lengths would be proportional to each other. Thus:

\frac{40}{8} = \frac{60}{2x - 2}

5 = \frac{60}{2x - 2}

Cross multiply

5(2x - 2) = 60

10x - 10 = 60

10x = 60 + 10 (addition property of equality)

10x = 70

Divide both sides by 10

x = 7

✔️NR = 2x - 2

Plug in the value of x

NR = 2(7) - 2 = 14 - 2

NR = 12

6 0
3 years ago
Bob and Doug are both 100-meter sprinters. Bob's sprint time is normally distributed with a mean of 10.00 seconds and Doug's spr
alexdok [17]

Answer:

The standard deviation (σ) = 0.05

Step-by-step explanation:

The question is to find the standard deviation.

STEEP 1: FIND THE MEAN

(10+9.9) ÷ 2 = 9.95

STEP 2: SQUARE THE DIFFERENCE BETWEEN SPRINT TIME AND MEAN

10-9.95= 0.05

0.05^2 = 0.0025

9.9 - 9.95= -0.0025

-0.0025^2 = 0.0025

STEP 3: FIND THE VARIANCE

0.0025+0.0025= 0.005

0.005/2= 0.0025

STEP 4: FIND THE STANDARD DEVIATION (σ )

√variance

√0.0025 = 0.05

Therefore

σ = 0.05.

From the standard deviation, the percentage probability of the higher value to occurs is

0.05×100= 5%

That means Doug has 95%

And Bob has 5%

3 0
2 years ago
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