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Xelga [282]
3 years ago
8

Pleas Help!? I am confused......

Mathematics
1 answer:
IrinaVladis [17]3 years ago
6 0
Notice the x^-2, this is equal to 1/x^2.  Then notice the y^0, any value raised to the zero power is equal to 1, ie n^0=1.  So your expression is actually just:

8/x^2, the y value has no effect upon the output.  They want you to evaluate, which must means calculate, the value when x=2 so:

8/(2^2)

8/4

2
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Round two decimal places<br><br>729015430.40641995​
erastovalidia [21]

Answer:

729015430.40641995​ = 729015430.41

Step-by-step explanation:

Since the 3 decimal place is 6, you round up. If you round up for 0 you get 1. Therefore your answer is 729015430.41.

5 0
3 years ago
The ratio of John's money to Jimmy's money is 5:8. Jimmy spent 1/4
erma4kov [3.2K]

Answer:

a. $3600

b. 6:5

Step-by-step explanation:

Put the question into an equation:

8x - 1/4 x 8x = 5x + 450

(simplify before solving) 6x = 5x + 450

(solve) 6x-5x = 450

x = 450

This means that Jimmy had 8 x 450 $ to start with = 3600

you can check this by subtracting a quarter of 3600 from 3600 and also multiplying 450 by 5 and then obtaining their difference. You get 450!

Now ratio of new amounts:

Jimmy now has: $2700

John still has: $2250

so ratio is 2700:2250

simplify to 6:5

Hope this helps

Please mark brainiest

3 0
4 years ago
B. Check if each of these points is a solution to
Igoryamba

Answer:

Step-by-step explanation:

b.

(0,2)

2y - x > 1

2(2) - 0 > 1

4 - 0 > 1

true, (0,2) is a solution to the inequality

(8,1/2)

2y - x > 1

2(1/2) - 8 > 1

1 - 8 > 1

-7 > 1

false, (8,1/2) is not a solution to the inequality

(-6,3)

2y - x > 1

2(3) - (-6) > 1

6 + 6 > 1

12 > 1

true, (0,2) is a solution to the inequality

(-7,-3)

2y - x > 1

2(-3) - (-7) > 1

-6 + 7 > 1

1 > 1

false, (8,1/2) is not a solution to the inequality

(1 is not greater than one, but equal. since the inequality is not "greater than or equal to", this equation is false)

c.  the top half should be shaded

d. no, because the inequality is >, not >=. therefore, the points on the line are not included in the solution set.

7 0
2 years ago
If every side of an octagon is 6 inches, what is the perimeter?
HACTEHA [7]
48 inches is the answer
8 0
3 years ago
Which process do we use in reverse to solve two-step equations?
lesya692 [45]

Answer: Inverse Operation

Step-by-step explanation:

6 0
4 years ago
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