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Lapatulllka [165]
3 years ago
5

Which functions are Invertible Choose each correct answer

Mathematics
2 answers:
BaLLatris [955]3 years ago
4 0

Answer: Top right and top left.

Step-by-step explanation:

For a function to be invertible, we must have that the function is one to one, this is because if we have that the function f(x1) = Y = f(x2)

for the inverse, such that g(f(x1)) = x1

but we know that f(x1) = f(x2)

this means that g(f(x1)) = x2

so g(y) is not a function.

Then, the only functions that can be invertible are the one-to-one functions, the top right, and the top left functions.

Ad libitum [116K]3 years ago
3 0
It is the first two, i just had this on my test :)
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Which expression is equivalent to -9a-10-6a+7−9a−10−6a+7
Gwar [14]

Answer:

−30a−6

Step-by-step explanation:

Let's simplify step-by-step.

−9a−10−6a+7−9a−10−6a+7

=−9a+−10+−6a+7+−9a+−10+−6a+7

Combine Like Terms:

=−9a+−10+−6a+7+−9a+−10+−6a+7

=(−9a+−6a+−9a+−6a)+(−10+7+−10+7)

=−30a+−6

BRAINLIEST. if you don't mind.

6 0
2 years ago
Help me fill in the blanks pleasee
777dan777 [17]

Answers and Step-by-step explanations:

Let's look at the first row:

cost = _______ + _______ * (monthly payment)

The first blank should be the "down payment" because this is the initial, constant value that is paid. The second blank should be the "number of months" because this way, when multiplied by the actual amount each payment is (monthly payment), then we get the total amount paid during those months.

So, we have:

cost = (down payment) + (number of months) * (monthly payment)

Now for the second row, we just plug in numbers and variables:

335 = 50 + 6 * p

Finally, we can solve for p:

335  = 50 + 6p

6p = 285

p = $47.50

8 0
2 years ago
Read 2 more answers
Courtlynn combines cup sour cream with
Rudiy27

Answer:

she would put 8oz in each bowl

Step-by-step explanation:

3 0
3 years ago
HELP ME PLS!!!! Which function represents a proportional relationship? A) f(x) = 3x 4 B) f(x) = 3 4x C) f(x) = 3x 4 + 3 4 D) f(x
Ganezh [65]

Answer:

Option B

f(x)=\frac{3}{4}x

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form k=\frac{y}{x} or y=kx

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

In this problem the only linear function that passes through the origin is

f(x)=\frac{3}{4}x

where

The constant of proportionality is k=3/4

8 0
2 years ago
Roy is twice as old as Joan, and in 3 years the sum of their ages will be 21 years. Find their present ages.
Lisa [10]

Answer:

Roy is 10 years old at present and Joan is 5 years old at present

Step-by-step explanation:

Let

x----> Roy's age

y----> Joan's age

we know that

x=2y ----> equation A

(x+3)+(y+3)=21 ----> equation B

substitute equation A in equation B

(2y+3)+(y+3)=21

solve for y

3y+6=21

3y=21-6

3y=15

y=5 years

Find the value of x

x=2y  ----> x=2(5)=10 years

therefore

Roy is 10 years old at present

Joan is 5 years old at present

8 0
3 years ago
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