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TEA [102]
3 years ago
12

ILL GIVE BRANLIEST

Mathematics
1 answer:
iren [92.7K]3 years ago
4 0

Answer:

1.  f(1) = -1

2. for x=3 f(x)=1

Step-by-step explanation:

According to function definition:

 for x=1  f(x)=f(1)=-1   (for first answer)

 for x=3 f(x)=f(3)=1   (for second answer)

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Isabella decides to sell handmade stationery. She decides to sell 2 cards for $9. Which table below show the possible values of
kolbaska11 [484]

Answer:

B

Step-by-step explanation:

each time she sells 2 cards she gets $9 right?

so counting by 2's is the best route to go on and the only answer that displays that is answer B

5 0
3 years ago
The sum of two numbers is 31.The product of the two numbers is 150. What are the two numbers?
Nikolay [14]
The two numbers I will call x and y.
x + y = 31
x * y = 150

You then solve for one variable in either equation and substitute it into the other equation.

x + y = 31
x = 31 - y

Then you plug it in:
x * y = 150
(31 - y) * y = 150
-y² + 31y = 150
y² - 31y + 150 = 0            Then factor:
(y - 6)(y - 25) = 0
y - 6 = 0        y - 25 = 0
y = 6             y = 25

When you plug y into the original equations, it comes out that the two numbers are 6 and 25. You can check your work because 6+25 = 31 and 6*25 = 150. Hope this helps! :)
5 0
3 years ago
Adalyn earns $42 for mowing lawns for 6 hours. If Adalyn charges at the same rate, how many hours will it takes her to earn $63
inessss [21]
2 hours is how long it would take
5 0
3 years ago
Read 2 more answers
What is the correct factorization of x^2 - 2x - 15?
iragen [17]

Answer:

option b

Step-by-step explanation:

{x}^{2}  - 2x - 15

{x}^{2}  - 5x + 3x - 15 = 0

x(x - 5) + 3(x - 5) = 0

(x - 5)(x + 3) = 0

x = -3 (Not possible)

x = 5

So, x = 5

8 0
2 years ago
What’s the difference between m=change in y and change in x and m =y2-y1and x2-x1
Mademuasel [1]

it's the same thing

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4 0
3 years ago
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