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raketka [301]
2 years ago
9

I need these pls!!!!!

Mathematics
1 answer:
Allisa [31]2 years ago
4 0

Answer:

1) $38.40 2) $255. 3) $5.80 4) $3.12

Step-by-step explanation:

So you have to multiply the years by the amount of money you have. Then you multiply that by the percent and divide by 100. (For the last one: because its a month you have to make it a fraction so it was 8/12)

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Find the expression for h(x) f(x)=-x^2-1
Ganezh [65]

Answer:

h(x) = -x^2 - 1

Step-by-step explanation:

well y, h(x), f(x), n(x), or any other something of x is all the same thing y.

So if f(x) is -x^2 - 1,

Then h(x) is also -x^2 - 1

5 0
3 years ago
Y varies directly as x.if y=-5 when x =15find x when y=3
Tpy6a [65]
Y=kx
-5=k(15)
-5/15=k
-1/3=k
now,
y=-1/5x
3=-1/5x
3×5=-1(x)
15=-1(x)
multiplying both sides by -1,we get
-15=x
3 0
3 years ago
Please help)Simplify: (r – 7)(r + 7)
PtichkaEL [24]

Answer:

Im pretty sure the answer is

C) r^2 - 49

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
13 less than 8 times a number is the same as the number plus 1
aliya0001 [1]
8x - 13 = x + 1
Solve for x
Add 13
8x = x + 14
Subtract x
7x = 14, x = 2
Answer: the number is 2
7 0
2 years ago
U will be made brainiest if this answer is right
Daniel [21]

Answer:

x= -7

Step by Step Explanation:

We can write them both like functions like this

A= 5x- 4

B= 3x+ 8

The output of A will be three times the output of B

A=3b

We replace with the functions

5x-4= 3

We solve for x

5x= -4= 9x + 24

5x- 9x= 24 + 4

-4x= 28

x= 28 - 4

x= -7

The output that makes the out put of A 3 times the output of B is -7

Hope it helped

4 0
3 years ago
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