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velikii [3]
2 years ago
11

when determining whether proportion are Equal we need to do which of the following? .addition, .multiply straight across, dividi

ng, cross multiplication​
Mathematics
1 answer:
Lisa [10]2 years ago
5 0

Answer:

Cross Multiplying.

Step-by-step explanation:

By multiplying each ratio by the second number of the other ratio, you can determine if they are equivalent. Multiply both numbers in the first ratio by the second number of the second ratio. For example, if the ratios are 3:5 and 9:15, multiply 3 by 15 and 5 by 15 to get 45:75.

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What is the Domain and Range of the function f(x)<img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx-7%7D%20%2B9" id="TexFormula1" tit
omeli [17]

For the given function, the domain is D : { x ≥ 7} and the range is R: { y ≥ 9}

<h3>How to get the domain and range?</h3>

Here we have a square root, remember that the argument of the square root must be equal or larger than zero, so the domain is such that:

x - 7 ≥ 0.

Solving for x we get:

x ≥ 0 + 7

Then the domain is:

x ≥ 7

To get the range, we evaluate in the minimum of the domain:

f(7) = √(7 - 7) + 9 = 9

Then the range is the set of all values larger than 9, because the function is increasing.

So the range is R: y ≥ 9.

If you want to learn more about domain and range:

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5 0
2 years ago
Angle 1 and angle 2 are complementary angles. Angle 1 is 82°. What is the measure of angle 2? a.8 b.78 c.82 d.98
romanna [79]
A.8 because 90-82=8 complemantry means 90
4 0
3 years ago
Read 2 more answers
Which of the following lists of ordered pairs is a function
devlian [24]

Answer:

d)(0,3), (-1,4), (1,6), (-1,7)

Step-by-step explanation:

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3 years ago
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A population of 120,000 grows 3% per year for 15 years, how much will the population be after 15 years?
Wewaii [24]
270,000 is the answer because you have three over 100 so you do 100 divided by three which give you 0.15 then you do 120,000 times 0.15 to find out how much it grows per year to get 18,000 then you multiply 18’000 by 15 and get 270’000
3 0
3 years ago
Please help me!!! I will try to mark brainliest if the answer is correct!
netineya [11]

Answer:

I think the first is answer bcz 35+55=90 ..... 180-90=90

5 0
3 years ago
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