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3 years ago

Someone help me find x and y?

Mathematics

1 answer:

lidiya [134]3 years ago

3 0

Idk for sure but x must be 90 since its half of the straight line which is 180 and the angles of a triangle must equal 180 when added so that makes the whole angle where y is 86 then divide it by 2 to get 43 for y

so x=90
and y=43

hope this helps :)

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Find f(h(-1))<br> 2<br> -9<br> 11<br> -11

kumpel [21]

Answer:

(d) -11

Step-by-step explanation:

Each of the functions is evaluated in the usual way: put the number where the variable is in the expression and simplify.

h(-1) = -2(-1)² -3(-1) +1 = -2 +3 +1 = 2

f(2) = (2(2) +7)/(2 -3) = 11/-1 = -11

Then f(h(-1)) is ...

f(h(-1)) = f(2) = -11

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2 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:

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

8 0

2 years ago

How do I go about solving this?

Stels [109]

Hello,

Here i am using vectors

$\vec{AB}=\vec{DC}=3\vec{i}+3\vec{j}$
==> AB//DC and AD//BC (definition of a translation)

The quadrilater ABCD is a parallelogram:
so
1) his diagonals have the same length;

2) his diagonals are cutting in the middle.

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3 years ago

What is the slope of (1,2) and (3,2)

sweet [91]

Answer:

Step-by-step explanation:

(1,2) ; (3,2)

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3 years ago

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lana66690 [7]

Answer:

12.1

Step-by-step explanation:

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3 years ago