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yuradex [85]
3 years ago
8

Find 5 - (-7) 5 - (-7) = 5+ Write as addition,​

Mathematics
1 answer:
faust18 [17]3 years ago
5 0

Answer:

7

negative of a negative number is equal to the positive of that number

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PLZ HELP AND SHOW UR WORK IF POSSIBLE . DON'T ANSWER IF U DON'T KNOW AND PLZ ANSWER ALL THREE PARTS
AVprozaik [17]
Part A: 
There are 8 possible outcomes.
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Part B:
There is 2 outcomes that consist of all head or all tails.

Part C:
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6 0
3 years ago
Which of the following is a function equivalent to f(x) = 5(1.9)3x?
scoundrel [369]
The answer should be B.

5(6.86x)
7 0
3 years ago
PLEASE HELP WILL MARK BRAINIEST!!!!!!
vladimir1956 [14]

Answer:

Copy an angle is the best solution with compass and straight edge.

8 0
3 years ago
A plant is already 14.00 meters tall, and it will grow 8 centimeters every month. The plant's height, H(in meters), after x mont
djverab [1.8K]

Answer:

18 meters

Step-by-step explanation:

the function is already given to you so you can just plug 50 into x because x represents the # of months

H(x)=14+0.08(50)

H(x)=14+4

H(x)=18

So it's 18 meters tall

4 0
3 years ago
The average fuel efficiency of U.S. light vehicles for 2005 was 21 mpg. If the standard deviation of the population was 2.9 and
statuscvo [17]

Answer:

1) The probability that the mean mpg for a random sample of 25 light vehicles is 0.042341.

2) between 20 and 25 --> 21-25/2.9 = -1.38

Step-by-step explanation:

Problem #1:

  • Using the z-score formula, z = (x-μ)/σ/n, where x is the raw score = 20 mpg,μ is the population mean = 21 mpg , σ is the population standard deviation = 2.9, n = random number of samples.
<h3><u>X < 20</u></h3>
  • = z = 20 - 21/2.9/√25
  • = z = -1/2.9/5
  • = z = -1.72414
<h2><u><em>Now</em></u></h2>

<em>P-value from Z-Table:</em>

<h3><u>P(x<20) = 0.042341</u></h3>

Problem #2:

<h3>21-25/2.9 = -1.38</h3>
6 0
2 years ago
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