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ludmilkaskok [199]
2 years ago
5

What is the distance between the points (−7, −3) and (−7, −9) ?

Mathematics
2 answers:
Oksanka [162]2 years ago
7 0

Answer:

that would be 6 units

Step-by-step explanation:

i took the quiz

MrRa [10]2 years ago
3 0

Answer:

6 units

Step-by-step explanation:

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Which of the following pairs of functions are inverses of each other?
kherson [118]

Answer:

Proved!

Step-by-step explanation:

For two functions f(x) and g(x) to be inverses of each other then;

f(g(x)) = x and g(f(x)) = x condition must be satisfied.

<u>Checking: A. f(x) = 7x³ + 10 and g(x) = ∛</u>\frac{x - 10}{7}<u />

<u />

So f(g(x)) = 7(\sqrt[3]{(x- 10)/7})³ + 10

We get; 7(\frac{x - 10}{7}) + 10 = x - 10 + 10 = x (*<em>This is correct!)</em>

<em />

So g(f(x)) = \sqrt[3]{((7x^3 + 10) - 10)/7}

Ten cancels out and we are left with;

\sqrt[3]{7x^3/7} = \sqrt[3]{x^3} = x (* <em>This is also correct!)</em>

3 0
2 years ago
Read 2 more answers
Scores on the GRE (Graduate Record Examination) are normally distributed with a mean of 579 and a standard deviation of 94. Use
Nata [24]

Answer:

The percentage of people taking the test who score between 391 and 767 is 95%.

Step-by-step explanation:

The Empirical Rule(68-95-99.7 Rule) states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 579

Standard deviation = 94

391 = 579 - 2*94

So 391 is two standard deviations below the mean.

767 = 579 + 2*94

So 767 is two standard deviations above the mean.

By the Empirical Rule:

The percentage of people taking the test who score between 391 and 767 is 95%.

4 0
3 years ago
20 is equal to 5 less than twice a number.
sweet [91]
If we have a number represented by n, we have 20 is equal to, so 20=something. That something is "5 less than twice a number". 5 less than something means something-5, and something-5=20. Since 5 is less than twice a number, and twice a number is n+n=2n, we have 2n-5=20
Actually solving the problem, we can start by adding 5 to both sides, resulting in 2n=25. Next, we can divide both sides by 2 to get n=12.5
5 0
3 years ago
Someone please help me with this math problem
timurjin [86]

Answer: 27,600

Step-by-step explanation:

Ok, there could be two answers to this question. If the question is asking how much he would make if it was .15% more, the total would be 27,600/a year

However, if it's asking .15% <u>of</u> 24,000, your answer would be 3,600 ( as in the extra he would be making)

  • To find the answer, you would have to multiply 24,000*.15 (your starting value times how much you would like to multiply it by)
7 0
2 years ago
Bags of sugar come in 3 sizes: Small bag: A 250 g bag costs 95p. Medium bag: A 500 g bag costs £1.80. Large bag: A 3 kg bag cost
azamat

Answer:

see below

Step-by-step explanation:

Small bag

95p / 250 g * 12/12 to get to 3 kg = 1140 p / 3000g =11.40£s/ 3 kgs

Medium bag

1.8£  / 500 g * 6/6 to get to 3 kg = 10.8£ / 3000g =10.80£/ 3 kgs

Large bag

3.7£  / 3 kg *

6 0
3 years ago
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