3 years ago

7 + (-14) What is the sum

Mathematics

1 answer:

Mila [183]3 years ago

5 0

Answer:

-7

Step-by-step explanation:

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Solve for m. -19m − 19 = 4m − 4m + 19

dangina [55]

-19m-19 = 4m-4m+19
-19m-19 = 0+19
-19m = 19+19
-19m = 38
m = 38÷(-19)
m = -2

7 0

3 years ago

Please help. I’ll mark you as brainliest if correct!

chubhunter [2.5K]

Answer:

$\boxed{\sf \ \ \ f^{-1}(x)=1+\sqrt{x} \ \ \ }$

Step-by-step explanation:

the minimum of f is for x = 1 and f(1)=0

f is decreasing for x<=1 and increasing for x>=1

so the domain is $[1;+\infty[$

$f^{-1}(f(x))=x =f^{-1}((x-1)^2)\\\\f(f^{-1}(x))=x=(f^{-1}(x)-1)^2$

x>=1 so x is positive and we can take the square root

so $f^{-1}(x)=1+\sqrt{x}$

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2 years ago

Which polynomial identity will prove that 49 − 4 = 45?

Marizza181 [45]

49 is a square of 7 and 4 is a square of 2. To get 45 you need to subtract 7² and 2². Therefore, its the difference of squares.

3 0

3 years ago

In what ways does adding a constant or coefficient to a quadratic equation affect the graph

lesya692 [45]

A constant can either shift the graph up or down. If coefficient is less than 1 it will make the graph wider, if it's more than 1 it will make graph more narrow

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3 years ago

Simplify the radical expression (5+√3)(5-√3)<br> a. 16<br> b. 22<br> c. 25+10√3<br> d. 16+10√3

Alja [10]

B is the correct answer

$(5 + \sqrt{3} )(5 - \sqrt{3) } \\ = 25 - \sqrt{3 {}^{2} } = 25 - 3 = 22$

good luck

8 0

3 years ago

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