All categories

3 years ago

PLEASE HELP WILL MARK BRAINLY

Mathematics

1 answer:

Ad libitum [116K]3 years ago

4 0

The answer you are looking for is B

You might be interested in

Use the net as an aid to compute the surface area of a triangle pyramid with an equilateral triangle base

murzikaleks [220]

Answer:

106 ft 2

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Simplify -3y(y + 2)^2 - 5 + 6y

ser-zykov [4K]

Answer:

That'll help a lot of people in the future ^.^

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

PLD HELP ME IM STUCK

miv72 [106K]

Answer:

I think it's A: Similar - AA

Step-by-step explanation:

We know that ∠K≅∠N & ∠L≅∠P, so that gives us 2 sets of congruent angles

7 0

3 years ago

Diego is solving the equation x^2-12x = 21

uysha [10]

Answer:

The solutions to the quadratic equations will be:

$x=\sqrt{57}+6,\:x=-\sqrt{57}+6$

Step-by-step explanation:

Given the expression

$x^2-12x\:=\:21$

Let us solve the equation by completing the square

$x^2-12x\:=\:21$

Add (-6)² to both sides

$x^2-12x+\left(-6\right)^2=21+\left(-6\right)^2$

simplify

$x^2-12x+\left(-6\right)^2=57$

Apply perfect square formula: (a-b)² = a²-2ab+b²

i.e.

$x^2-12x+\left(-6\right)^2=\left(x-6\right)^2$

so the expression becomes

$\left(x-6\right)^2=57$

$\mathrm{For\:}f^2\left(x\right)=a\mathrm{\:the\:solutions\:are\:}f\left(x\right)=\sqrt{a},\:-\sqrt{a}$

solve

$x-6=\sqrt{57}$

add 6 to both sides

$x-6+6=\sqrt{57}+6$

Simplify

$x=\sqrt{57}+6$

also solving

$x-6=-\sqrt{57}$

add 6 to both sides

$x-6+6=-\sqrt{57}+6$

Simplify

$x=-\sqrt{57}+6$

Therefore, the solutions to the quadratic equation will be:

$x=\sqrt{57}+6,\:x=-\sqrt{57}+6$

5 0

3 years ago

Can someone explain how to find the answer to x

OLga [1]

Answer:

130

Step-by-step explanation:

X is the alternate corresponding angle to 50. 50+y=180

y=130

x and y = the same thing so 130 is the value of x

4 0

3 years ago

Read 2 more answers