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Lisa [10]
3 years ago
15

3x + 2y = 12 y = x - 9 solve by substitution

Mathematics
1 answer:
mezya [45]3 years ago
7 0
Point form: (6,-3)
equation form: x=6, y=-3
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The mean life of a battery is 50 hours with a standard deviation of 6 hours. The
Alborosie
It would be atleast 250
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3 years ago
48 points if you know this!
Eduardwww [97]
So you times 124 by 4 which is 496
8 0
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**GIVING OUT BRAINLIEST**
IgorLugansk [536]

Answer:

1ST GRAPH

Step-by-step explanation:

1st GRAPH

Because the equation is trying to express:

<u>p is bigger or equal to -1</u>

and in graph no.1 the inequality is at -1 and everything after it could be p. As P is bigger than -1

7 0
3 years ago
The sum of three numbers is 64. The second number is 3 more than the first. The third number is 11 less than twice the first. Fi
Cloud [144]
The first number: x
The second number: x + 3
The third number 2 * x - 11
Sum of all numbers: 65

We can write it down as an equation:

65 = x + 3 + x + 2x - 11
65 = 4x + 3 - 11
65 = 4x - 8                         / + 8 (both sides)
73 = 4x                             / ÷ 6 (both sides_
x = 18,25

Doublecheck:

The first number: 18,25
The second number 18,25 + 3 = 21,25
The third number: 2 * 18,25 - 11 = 36,5 - 11 = 25,5
Sum of all numbers: 18,25 + 21,25 + 25,25 = 65, so it's correct :)
8 0
3 years ago
You have used the significant level of 0.01 to estimate the average hours of television viewing for the NJ students. What is the
Lorico [155]

Answer:

1%

Step-by-step explanation:

Given : You have used the significant level of 0.01 to estimate the average hours of television viewing for the NJ students.

To Find :What is the chance that our interval estimate does not contain the true population mean?

Solution:

We are given that You have used the significant level of 0.01 to estimate the average hours of television viewing for the NJ students.

So, α=0.01

Significance level indicates a risk of concluding that a difference exists when there is no actual difference.

So, The chance that our interval estimate does not contain the true population mean is 0.01

So, The chance that our interval estimate does not contain the true population mean is 0.01 \times 100 = 1\%

Hence Option D is true

8 0
3 years ago
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