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4 years ago

What is 2+2 I need help and how to explain.

Mathematics

2 answers:

Marizza181 [45]4 years ago

8 0

It's 4 because if you have 2 then you add another 2 it will be 4

Ket [755]4 years ago

7 0

Lol its 4 put up two fingers then add two more

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What is x? ............

Sidana [21]

Answer:

Step-by-step explanation:

so we do 2x+5+x-3+3x+1=39

6x+3=39

6x=36

divide by 6 and then x=6

4 0

3 years ago

0.04x -0.06y=0.48<br> 0.08x-0.11 y=0.92

UkoKoshka [18]

Answer:

0.04x -0.06y=0.48

x = 1.5y + 12

0.08x-0.11 y=0.92

x = 1.375y + 11.5

Hope this helps!

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3 years ago

Solve each quadratic equation. Show your work.

umka2103 [35]

14. 2x-1 = 0, x+7=0
x = 1/2, x = -7

15. x^2 + 3x - 10 = 0
(x + 5)(x - 2) = 0
x = -5, x = 2

16. x^2 - 25 = 0
(x-5)(x+5)
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5 0

3 years ago

What is the Inverse Equation<br><br>f(x) =6x-1 ?? please I need help!

Scrat [10]

Answer:

$f^{-1}(x)=\frac{x+1}{6}$

Step-by-step explanation:

So we have the function:

$f(x)=6x-1$

To find the inverse function, switch x and f(x), change f(x) to f⁻¹(x), and solve for f⁻¹(x). Therefore:

$f(x)=6x-1$

Switch:

$x=6f^{-1}(x)-1$

Add 1 to both sides:

$x+1=6f^{-1}(x)$

Divide both sides by 6:

$f^{-1}(x)=\frac{x+1}{6}$

And that's our answer :)

5 0

3 years ago

Is my answer correct

Vlad [161]

No because its explain how much cumulative tip total on day 5 so the answer is D.400

8 0

3 years ago