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3 years ago

Find the missing number in the proportion.

Mathematics

1 answer:

Soloha48 [4]3 years ago

8 0

Answer: 7

Step-by-step explanation: Cross multiply, so 15 times x and 21 times 5. 21 times 5 is 105 then you divide by 15 which gives you 7.

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Write an equation of the function

ohaa [14]

Answer:

g(x) = |x-3| -4

Step-by-step explanation:

to shift right by 3, subtract three from x inside the absolute value.

to shift down by 4, subtract 4 outside of the absolute value.

g(x) = |x-3| -4

5 0

3 years ago

write an equation in slope-intercept form for a line that goes through (9,-2) and is parallel to y=7x+2

lozanna [386]

Answer:

y=7x-65

Step-by-step explanation:

3 0

2 years ago

Let the random variable Q represent the number of students who go to a certain teacher's office hour each day. The standard devi

postnew [5]

Answer: А. On average, the number of students going to an office hour varies from the mean by about 2.2 students

Step-by-step explanation:

The standard deviation is a measure of spread, which gives how values deviate from the average or mean value of a particular distribution. Hence, the standard deviation is usually defined about the average value of a distribution.

Therefore, for a certain random variable representing the number of student who visits office hours, the standard deviation will be defined about the average or mean value of the random variable Q.

Thus, stated as ; number of students going to an office hour varies from the mean by 2.2 on average.

4 0

2 years ago

Read 2 more answers

Tom has saved $128, and his goal is to save $500. How much more must he save? Which equation BEST represents this situation?

Jet001 [13]

I think the answer is A

3 0

3 years ago

Read 2 more answers

What is the greatest common factor of 48, 24, and 45?

pshichka [43]

Answer:

Step-by-step explanation:

Let's write the factors:

48's factors are = 1, 2, 3, 4, 6, 8, 12, 16, 24 and 48.

24's factors are = 1, 2, 3, 4, 6, 8, 12, 24.

45's factors are =1, 3, 5, 9, 15 and 45.

The greatest number that is in all three of these lists of factors is 3!

So, 3 is the greatest common factor between all three numbers!

4 0

2 years ago