1 year ago

Answer plsss as soon as possible

Mathematics

1 answer:

shtirl [24]1 year ago

3 0

Answer:

Step-by-step explanation:

both angles must add up to 180 so

6x+12+3x+63 must =180

= 9x+75

9x+75=180

-75 -75

9x=105

x=11.66

meaning A is approximately 81.96

You might be interested in

Find (x+3) (x^2 - 2x -8). Write answer in standard form

Pavlova-9 [17]

Answer:

x3+x2-14x-24

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

A sugar cookie recipe calls for 5 cups of flour for every 1 cups of sugar. If y y is the number of cups of flour and x x is the

RUDIKE [14]

Yy=5(xx)

works because lets say you need 3 cups of sugar. 3x5 is 15 which is exactly the number of cups of flour you would need

8 0

3 years ago

Write an expression that is equal to 3*2 1/4 Fourth grade<br> Anwser

Misha Larkins [42]

6 * 1.25 because if you multiply 3 by 2 you get 6 and then you have to dib=vide 2 1/4 by 3 and you get 1.25

3 0

3 years ago

A portable CD player costs $48. How much is a payment of 25% of the cost

levacccp [35]

25% is the same is 1/4 of something. So you have to find what 1/4th of 48 is. To do that, just divide 48 by 4. and you get 12.

A 25% payment on a CD player that costs $48 would be $12. Hope that helps!

4 0

3 years ago

What is the set of all solutions to the equation \sqrt{x + 2}= {-x} x+2 =−xsquare root of, x, plus, 2, end square root, equals

NARA [144]

Answer:

$x = 2$ or $x = -1$

Step-by-step explanation:

Given

$\sqrt{x + 2}= {-x}$

Required

Find the possible values fo x

$\sqrt{x + 2}= {-x}$

Square both sides

$( \sqrt{x + 2})^2= ({-x})^2$

$x + 2 = x^2$

Equate to 0

$x^2 - x - 2 = 0$

Expand

$x^2 + x -2x - 2 = 0$

Factorize:

$x(x + 1) - 2(x + 1) = 0$

$(x -2)(x +1) = 0$

Split:

$x - 2 = 0$ or $x + 1 = 0$

$x = 2 + 0$ or $x = 0-1$

$x = 2$ or $x = -1$

3 0

2 years ago