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jonny [76]
3 years ago
15

-17 + 20 + (-3) SOMEBODY HELP ME PLS ASAP

Mathematics
1 answer:
harkovskaia [24]3 years ago
8 0

Answer:

0

Step-by-step explanation:

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Dang why is TTM so hard also PLEASE HELP!!!!!!
34kurt
Correct answer is  right down, increase gives sign +, drop or decrease gives sign -
5 0
3 years ago
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Are (2,9) and (-3,-6) both on the line y = 4x + 6? If not, find an equation for the line that does pass through both points.
igor_vitrenko [27]

Answer:

no, y=3x+3

Step-by-step explanation:

plug both points into the equations:

  • 9=4*2 +6 -> 9=8+6, doesn't work
  • -6=4(-3)+6 -> -6=-6, works

one works but the other doesn't so now we find a line through both points

use the formula (y_2-y_1)/(x_2-x_1) to find the slope:

  • (-6-9)/(-3-2)=-15/-5=3

y=3x+b, plug in a point to find b:

  • 9=3(2)+b
  • 9=6+b
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7 0
3 years ago
Solve for x<br><br> ax=b <br><br> This is for Algebra 1
postnew [5]
The answer to this is x= b/a
8 0
3 years ago
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Solve for e. (-7) = e/3 + 14
raketka [301]
<span>(-7) = e/3 + 14

Subtract 14 on both sides

-7 - 14 = e/3 + 14 - 14

-21 = e/3 

Multiply by 3 on both sides

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5 0
3 years ago
According to a report from a business intelligence company, smartphone owners are using an average of 20 apps per month Assume t
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Answer: 0.547

Step-by-step explanation:

As per given , we have

Population mean = \mu=20

Population standard deviation= \sigma=4

Sample size : n= 36

We assume that number of apps used per month by smartphone owners is normally distributed.

Let \overline{x} be the sample mean.

Formula : z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}

The probability that the sample mean is between 19.5 and 20.5 :-

P(19.5

[using standard normal distribution table for z]

Hence, the required probability = 0.547

8 0
3 years ago
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