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REY [17]
3 years ago
12

Please help Will give brainliest!!!

Mathematics
2 answers:
Verdich [7]3 years ago
7 0
Step 1: set equations equal to eachother
2x+2=x-1
which equals to x=-3
so the answer is one.
arlik [135]3 years ago
7 0

Answer:

There is one solution.

Step-by-step explanation:

y=2x+2

y=x-1

So 2x+2 = x-1

x = -3

So y = -4

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Answer:

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Step-by-step explanation:

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3 years ago
For a given population of high school seniors, the Scholastic Aptitude Test (SAT) in mathematics has a mean score of 500 with a
tresset_1 [31]

Answer:

The probability that a randomly selected high school senior's score on mathematics part of SAT will be

(a) more than 675 is 0.0401

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Step-by-step explanation:

Mean of Sat =\mu = 500

Standard deviation = \sigma = 100

We will use z score over here

 What is the probability that a randomly selected high school senior's score on mathe- matics part of SAT will be

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P(X>675)

Z=\frac{x-\mu}{\sigma}\\Z=\frac{675-500}{100}

Z=1.75

P(X>675)=1-P(X<675)=1-0.9599=0.0401

b)between 450 and 675?

P(450<X<675)

At x = 675

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At x = 450

Z=\frac{x-\mu}{\sigma}\\Z=\frac{450-500}{100}

Z=-0.5

P(450<X<675)=0.9599-0.3085=0.6514

Hence the probability that a randomly selected high school senior's score on mathematics part of SAT will be

(a) more than 675 is 0.0401

(b)between 450 and 675 is 0.6514

6 0
3 years ago
Can someone tell me what the answer for <br> 2 kos60° + tan 45 ° ​
enot [183]

Answer:

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8 0
3 years ago
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Step-by-step explanation:

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3 years ago
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The volume of the small pool is the product of the cube of the scale factor and the volume of the large pool. 25.92 m cubed.  Hope this helps.
7 0
3 years ago
Read 2 more answers
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