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mel-nik [20]
2 years ago
9

Х'y 62 Use properties of exponents to simplify the expression.

Mathematics
1 answer:
Dimas [21]2 years ago
8 0

Answer: it's A

Step-by-step explanation: Its A I bet nonono C

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we said that the ratio of girls to boys in the class was 2:9. if there were 90 boys in the 9th grade, how many girls are there
Juliette [100K]

Answer:

20

Step-by-step explanation:

If the ratio of boys is 9 there are 90 boys. If 9=90 then 1= 10. 10 x 2 = 20

I hope this helps :0)

7 0
3 years ago
Read 2 more answers
Dilations PLEASE HELP ME PLEASE
AURORKA [14]

Answer:

D' (6, - 6 )

Step-by-step explanation:

Assuming the dilatation is centred at the origin then multiply the coordinates of D by 3, that is

D (2, - 2 ) → D'(3 × 2, 3 × - 2 ) → D' (6, - 6 )

6 0
3 years ago
I NEED THIS PLEASE these are all my points!
sertanlavr [38]

Answer:

m>14    or    m< -2

Step-by-step explanation:

7 0
3 years ago
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Simplificar la radicacion 18
bonufazy [111]

Answer:

441

Step-by-step explanation:

8 0
2 years ago
State the rule obeyed by the variables in each relation diagram below
labwork [276]

Answer:

y = 2x + 1

Step-by-step explanation:

You can see a pattern in the group of x's that the numbers go up by 1 Also in the y-set that the numbers go up by 2. So this pattern is linear, that means the "rule" you are looking for does not have exponents or square roots or any very complicated stuff. You can use a guess and check method. Say to yourself how can I get a 7 out, when I put a 3 in? "times by2 and plus 1" works.

3 times 2, and plus1

gives you 7.

Test it on the other numbers.

-1 times2, and plus1

2(-1)+1 = -1

2(0)+1 = 1

2(1)+1 = 3

2(2)+1 = 5

It works for all the numbers.

You can calculate it also, using any two pairs of (x,y) from the data set. Put y-y on top of a fraction and x-x on the bottom. You will get the slope and that is the 2 in the "rule"

(3,7) and (2,5) for example. 7-5 so put 2 on top and 3-2 so put 1 on the bottom. 2/1 is just 2. From the point (0,1) we know the y-intercept is 1. This also gives the equation y=2x+1.

If you are just starting to learn this, probably just guess and check a rule. The rule has to work for all the points.

6 0
2 years ago
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