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2 years ago

HURRY PLEASE What is measure of

Mathematics

1 answer:

Blizzard [7]2 years ago

3 0

First, find the supplement of the angle that is 105 degrees.

105 + 75 = 180

Now, we can find complete the lower left triangle's angles.

39 + 75 + ? = 180

? = 66 degrees

The 66 degree angle of the lower left triangle and angle x are vertical angles. Vertical angles are congruent.

Therefore, the measure of angle x is 66 degrees.

Hope this helps!

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If x- 2 is a factor of x^2 -bx+ b, where b is a constant, what is the value of b

KATRIN_1 [288]

$\bf x^2-\underline{b} x+b\implies \stackrel{given}{(x-2)}~(x-y)\impliedby \textit{now let's do some FOIL}\\\\
-------------------------------\\\\
\begin{cases}
-yx-2x=-\underline{b}x\implies y+2=\underline{b}\\
(-2)(-y)=b\implies 2y=b
\end{cases}
\\\\\\
\underline{b}=b\implies y+2=2y\implies 2=y$

what is b? from the first equation in the system, y + 2 = b.

4 0

3 years ago

I NEED HELP ASAP PLEASE!!!

katovenus [111]

Look up the sheet on the website

ok bye now

6 0

4 years ago

Tessellations

Misha Larkins [42]

Answer:

A. Yes; measure of interior angle = 90

Step-by-step explanation:

I calculated it logically

8 0

3 years ago

Help me pleaseeeeees

Marizza181 [45]

2-2i ( that’s your answer)

4 0

4 years ago

Read 2 more answers

13. What are the x-intercepts of<br> y = 2x2 + 6x - 20?

Brilliant_brown [7]

Answer:

x = -5, 2

Step-by-step explanation:

The first step to factor the equation is removing any factors/like terms that all of the variables share.

In the equation $y = 2x^2+6x-20$ , all numbers are multiples of 2, therefore you can factor out 2 from to equation

$y = 2(\frac{2x^2}{2} + \frac{6x}{2} -\frac{20}{2})$

$y = 2(x^2+3x-10)$

Next, you can factor the equation in the parenthesis. Since x^2 is not multiplied by anything, you know that the factors of x^2 must be x and x. Therefore, the two factors of -10 must add up to 3. The only two factors of -10/x that add up to 3 are 5 * -2.

The factors of the equation are then (2)(x+5)(x-2)

Lastly, set up only the factors containing a x to 0 in order to solve for x-intercept.

x+5 = 0; x= 0-5 ; x = -5

x - 2 = 0; x = 0 + 2; x = 2

7 0

3 years ago