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Zepler [3.9K]
3 years ago
5

What is the value of the expression below? -7(-2)

Mathematics
2 answers:
bazaltina [42]3 years ago
8 0
The correct answer is 14
Nimfa-mama [501]3 years ago
7 0

Answer:

14

Step-by-step explanation:

-7*-2=14

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PLEASE HELP I DO NOT UNDERSTAND AT ALL AND SHOW YOUR WORK !!
Agata [3.3K]

Answer:

y intercept (-6,0), x-intercept (0,-8) : y = \frac{-4}{3}x -8

y intercept (0,-6), x-intercept (-2,0): y = -3x -6

y intercept (0,8), x-intercept (1.6,0): y = -5x + 8

y intercept (0,7), x-intercept (-1.4,0): y = 5x + 7

Step-by-step explanation:

y = mx + b

*note: b is the y intercept

<u>1. y intercept (-6,0), x-intercept (0,-8)</u>

m = \frac{-8 - 0}{0 - (-6)}= \frac{-8}{6}  = \frac{-4}{3}\\y =  \frac{-4}{3}x + b\\y = \frac{-4}{3}x -8

<u>2.y intercept (0,-6), x-intercept (-2,0)</u>

<u />m = \frac{0 - (-6)}{-2 - 0} = \frac{6}{-2}  = -3\\y = -3x + b \\y = -3x -6<u />

<u>3. y intercept (0,8), x-intercept (1.6,0)</u>

<u />m = \frac{0 - 8}{1.6 - 0}= \frac{-8}{1.6} = -5\\y = -5x + b\\y = -5x + 8<u />

<u>4. y intercept (0,7), x-intercept (-1.4,0)</u>

<u />m = \frac{0 - 7}{-1.4 - 0} = \frac{-7}{-1.4}= 5 \\y = 5x + b\\y = 5x + 7<u />

6 0
3 years ago
Which is the best step to do next to solve the equation by completing the square?
expeople1 [14]

Answer: the correct answer is 9(x2+6x+9)=103 so it’s d

Step-by-step explanation:

Did it on edgunity

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3 years ago
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The unknown angle is 90 degrees 
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4 years ago
Evaluate 5(6) -c ifc=7
ahrayia [7]
23.

Work:
5(6)-7
5(6)=30
30-7=23
5 0
3 years ago
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For the following situation determine what type of sampling was used. A research company believes teens today are getting less t
julia-pushkina [17]

Answer: Simple random sampling.

Step-by-step explanation:

A simple random sample is basically a subset (with size n) from the entire population, where the chance of getting selected for each element is equal.

Given :A research company believes teens today are getting less than the recommended hours of sleep. The company takes a list of 2000 teen volunteers and assigns each volunteer a number. A

A random number generator is used to select 350 individuals to take part in a sleep survey.

It is a simple random sampling because the researcher selected participants randomly such that the chance to get selected for each of them remains same.

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