3 years ago

1.

Mathematics

2 answers:

Elan Coil [88]3 years ago

4 0

Answer:

Step-by-step explanation:

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mixas84 [53]3 years ago

3 0

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What type of relationship does this pair of angles have 67 and 23

diamong [38]

67 + 23 = 90

Because this pair of angles adds up to 90, they are complementary angles.

Hope this helps!! :)

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4 years ago

Giving brainliest :)

Verizon [17]

Answer:

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

Step-by-step explanation:

The inverse of a function is when the x and y are swapped. So the first step is to write f(x) as y and then swap the x and y

Original Equation:

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

write f(x) as y (since that's what it represents)

$y=\sqrt{x-1}$

Swap x and y

$x=\sqrt{y-1}$

Square both sides

$x^2=y-1$

Add 1 to both sides

$x^2+1=y$

So this gives you the equation:

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

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2 years ago

Which equation has a graph of 7x=14y-8

masha68 [24]

You could re-write this to make it into an equation, you want to isolate the y, for a slope-intercept form. So you +8 to the other side; so it would be 7x+8=14y, then divide it by 14. And your equation would be y=4/7+x/2.

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3 years ago

A direct variation function contains the points (-9, -3) and (-12, -4) Which equation represents the function?

Bezzdna [24]

Answer:

y = $\frac{1}{3}$ x

Step-by-step explanation:

Given that y varies directly as x then the equation relating them is

y = kx ← k is the constant of variation

To find k use either of the 2 given points

Using (- 9, - 3), then

k = $\frac{y}{x}$ = $\frac{-3}{-9}$ = $\frac{1}{3}$

y = $\frac{1}{3}$ x ← equation of function

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4 years ago

If x is a number that is 7 more than y, how do you express x as a function of y

Soloha48 [4]

$x=y+7$
.....

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3 years ago