3 years ago

Which set is closed under the operation multiplication?

Mathematics

1 answer:

barxatty [35]3 years ago

5 0

A because 1×2 is 2 than 2×2 is 4

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Which function is the inverse of f(x) = -5x-4?

tankabanditka [31]

Step-by-step explanation:

$f(x) = - 5x - 4$

$\:$

<u>Inverse</u>

$y = - 5x - 4$

$x = - 5y - 4$

$x + 4 = - 5y$

$y = - \frac{(x + 4)}{5}$

${f}^{ - 1} (x) = - \frac{(x + 4)}{5}$

4 0

3 years ago

tickets to the country fair cost $8 each. Seventy people bought their tickets at the gate. The revenue ticket sales was $ 2,560.

Gelneren [198K]

Answer:

70 people

Step-by-step explanation:

It literaly says it in the question.

5 0

3 years ago

Can anyone help me???

lbvjy [14]

Answer:

I think it's J.

Step-by-step explanation:

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7 0

3 years ago

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3x + 17 + 5x = 7x + 10

Sphinxa [80]

Answer: x=-3

Step-by-step explanation:

First you add 3x+5x cause they are both variables.They equal 8x.

Then you subtract 7x from both sides to get x+17=10

then you subtract 17 from both sides.

you will get x= -3

Hope that helps!

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3 years ago

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Solve the equation x/4 - 7 = y for x

expeople1 [14]

Answer:

x = 4y + 28

Step-by-step explanation:

x/4 - 7 = y

+7 +7

x/4 = y + 7

× 4 × 4

x = 4y + 28

7 0

3 years ago

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