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castortr0y [4]
3 years ago
15

The equation of a line is y-4=3(x+2) , which of the following is a point on the line?

Mathematics
1 answer:
kramer3 years ago
8 0
Y-4=3(x+2)
y-4=3x+6

y = 3x +10

so in case of choise C. we get 

4 = 3*(-2) +10

4 = -6 +10

4 = 4 

hope this will help you 
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Can someone help me please <br> And please show your work
kondaur [170]
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If f(x) = x + 7 and g(x) = 1 / x - 13, whaf is the domain of (f°g)(x)?​
ZanzabumX [31]

Answer: Choice D) x can be anything but 13

========================================================

Explanation:

The domain of (f \circ g)(x) = f(g(x)) is the same as the domain of g(x)

The domain for g(x) is \{x|x \ne 13\} saying we can plug in any number we want as long as it's not 13. This is to avoid dividing by zero. The same domain applies for the composite function because

f(x) = x+7\\\\\\f(g(x)) = g(x)+7\\\\\\f(g(x)) = \frac{1}{x-13}+7\\\\\\(f \circ g)(x) = \frac{1}{x-13}+7\\\\\\

and we can see that we still need to kick out x = 13 from the domain to avoid the division by zero issue.

6 0
3 years ago
Question 4 of 25
Gnoma [55]

Answer:

Step-by-step explanation:

We are looking for P(58 < x < 64). We need to find the percentage to the left of the z-scores for each of these numbers. To find the z scores, use the formula:

z=\frac{x_i-\bar{x}}{\sigma}

z=\frac{58-62}{4} which gives us a z-score of -1. The percentage of numbers to the left of a z-score of -1 is .1586553

Now for the other z-score:

z=\frac{64-64}{4} which gives us a z-score of .5. The percentage of numbers to the left of a z-score of .5 is .69146246

The lower percentage subtracted from the higher gives the area in question:

.69146246 - .1586553 = .53280716, or as a percentage, 53.3%, choice A.

7 0
3 years ago
PLEASE HELP!!!!!!!!!!!! WILL GIVE BRAINLIEST!!
KATRIN_1 [288]

Answer:

False -Demartra

Step-by-step explanation:

8 0
3 years ago
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