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Yuliya22 [10]
3 years ago
6

A system of equations is shown.

Mathematics
2 answers:
bulgar [2K]3 years ago
7 0
B because tell you what you need to know ?
LuckyWell [14K]3 years ago
5 0
It is the only solution because 10(-6) + 6(8) = -12
-60 + 48 = -12 
-12 = -12 for the first. 
4(-6) + 2(8) = -8
-24 + 16 = -8
-8 = -8 for the second. 
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lina2011 [118]

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3 years ago
Daily low temperatures in Columbus, OH in January 2014 were approximately normally distributed with a mean of 15.45 and a standa
Alona [7]

Answer: 12.10

Step-by-step explanation:

Given : Mean : \mu = 15.45

Standard deviation : \sigma = 13.70

The formula to calculate the z-score :-

z=\dfrac{x-\mu}{\sigma}

For x= 5 degrees

z=\dfrac{5-15.45}{13.70}=-0.7627737226\approx-0.76

For x= 10 degrees

z=\dfrac{10-15.45}{13.70}=-0.397810218\approx-0.40

The P-value : P(-0.76

=0.3445783-0.2236273=0.120951\approx0.1210

In percent , 0.1210\times100=12.10\%

Hence, the percentage of days had a low temperature between 5 degrees and 10 degrees = 12.10%

5 0
3 years ago
Which of the following is not a way to represent the solution of the inequality 2(x + 1) greater than or equal to 20?
Goshia [24]

Answer:

option C

A number line with a closed circle on  9 and shading to the left

Step-by-step explanation:

we have

2(x+1)\geq 20

solve for x

2x+2\geq 20

Subtract 2 both sides

2x+2-2\geq 20-2

2x\geq 18

Divide by 2 both sides

x\geq 9 --------> is equivalent to 9 \leq x

The solution is the interval--------> [9,∞)

All real numbers greater than or equal to 9

A number line with a closed circle on  9 and shading to the right

3 0
3 years ago
Read 2 more answers
Can someone help lol
djverab [1.8K]

Answer:

p=30 q=150

Step-by-step explanation:

7 0
2 years ago
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Find the radius of a circle in which an inscribed square has a side of 8 inches
pishuonlain [190]
I hope this help you I gess 16
6 0
3 years ago
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