All categories

2 years ago

Help me. Help me!!!

Mathematics

1 answer:

wel2 years ago

3 0

(9x + 20°) + 7x = 180° { supplementary angles}

or, 9x + 20° + 7x = 180 °

or, 16x = 180° - 20°

or, x = 160°/16

:. x= 10°

Now,

9x + 20° + 2y= 180° { supplementary angles}

or, 9* 10 + 20 + 2y= 180°

or, 110° + 2y= 180°

or, 2y= 180° - 110°

or, y= 70°/2

:. y= 35°

ps: double check everything, I don't have a calculator.

You might be interested in

HELP ME PLEASEEEEE I WILL GIVE THE BRAINLY THING

Nadya [2.5K]

The answer is C. 71. You add up all the numbers to get 355. and then you divide by the amount of numbers there are. there are 5 numbers so you do 355/5 to get 71.

3 0

3 years ago

Interpreting graphs of functions

horsena [70]

Answer: non-linear 40 1/2 Step-by-step explanation: This is a non-linear function specifically it is an oscillating function The initial position of the weight occurs at t=0 and from the graph we see that at t=0, the weight position is 40 centimeters The weight is said to reach equilibrium when its position is at 0 cm. From the graph we can see that the function first reaches 0 cm at t=0.5 seconds or at t= 1/2 second

3 0

1 year ago

Read 2 more answers

How many variable terms are in the expression 3x3y + 5xz − 4y + x − z + 9? (Input a numeric value only.)

Sunny_sXe [5.5K]

It would be three.....

5 0

2 years ago

Read 2 more answers

The perimeter of a rectangle is 132 feet and its area is 1080 square feet. find the dimensions

FrozenT [24]

2x + 2y=132

xy=1080

Let x=1080/y

2160/y + 2y=132
2y^2 - 132y +2160=0
2(y^2-66y+1080)=0
2(y-30)(y-33)=0
y=30 or y=33
(36,30) or (30,36)

So... x=30,36 and y=36,30. Either way, the answer is 30 by 36 or 36 by 30.

5 0

3 years ago

Given g(x) = x² - 6x - 16, which statement is true?

inn [45]

The correct choice of this question with the given polynomial is "The zeros are -2 and 8, because the factors of g are (x + 2) and (x - 8)". (Correct choice: H)

<h3>How to analyze a second orden polynomial with constant coefficients</h3>

In this case we have a second order polynomial of the form x² - (r₁ + r₂) · x + r₁ · r₂, whose solution is (x - r₁) · (x - r₂) and where r₁ and r₂ are the roots of the polynomial, which can be real or complex numbers but never both according the fundamental theorem of algebra.

If we know that g(x) = x² - 6 · x - 16, then the factored form of the expression is g(x) = (x - 8) · (x + 2). Hence, the correct choice of this question with the given polynomial is "The zeros are -2 and 8, because the factors of g are (x + 2) and (x - 8)". $\blacksquare$

To learn more on polynomials, we kindly invite to check this verified question: brainly.com/question/11536910

4 0

2 years ago