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Leokris [45]
3 years ago
10

Someone help, I'm really bad at geometry

Mathematics
1 answer:
jeka943 years ago
8 0
Use linear pairs to find the measure of angle B and the measure of the angle adjacent to the measured angle 135. Use the vertical angle theorem to find that angle inside the triangle across from B. Then use the triangle angle sum theorem to add up your values to equal 180. Solve for x and then plug that value back into 31 +x.
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On a coordinate plane, a line goes through (0, negative 3) and (2, 2). A point is at (2, negative 3).
Ulleksa [173]

Answer:

5/2,     5/2,     -3= (5/2)(2)+b,     -8,     y=(5/2)x-8

Step-by-step explanation:

6 0
3 years ago
Which of the following expression is equal to x^2+25?
nignag [31]
A: (x + 5i)^2
= (x + 5i)(x + 5i)
= (x)(x) + (x)(5i) + (5i)(x) + (5i)(5i)
= x^2 + 5ix + 5ix + 25i^2
= 25i^2 + 10ix + x^2


B: (x - 5i)^2
= (x  +   - 5i)(x +  - 5i)
= (x)(x) + (x)(- 5i) + (- 5i)(x) + (- 5i)(- 5i)
= x^2 - 5ix - 5ix + 25i^2
= 25i^2 - 10ix + x^2


C: (x - 5i)(x + 5i)
= (x +  - 5i)(x + 5i)
= (x)(x) + (x)(5i) + (- 5i)(x) + (- 5i)(5i)
= x^2 + 5ix - 5ix - 25i^2
= 25i^2 + x^2


D: (x + 10i)(x  - 15i)
= (x + 10i)(x +  - 15i)
= (x)(x) + (x)(- 15i) + (10i)(x) + (10i)(- 15i)
= x^2 - 15ix + 10ix - 150i^2
=  - 150i^2 + 5ix + x^2



Hope that helps!!!

6 0
3 years ago
Read 2 more answers
In the space at the right, draw a triangle : Use an algebraic expression to label the length of each side. Write an expression f
mezya [45]
Not sure I am so sorry I will look more
4 0
3 years ago
Where do u put parentheses yo make the equation 10+9×3-1×2 true?
myrzilka [38]

Answer

((10+9)x3-1)x2

=(19x3-1)x2

=(57-1)x2

=56x2=112

5 0
3 years ago
A rectangle has is 70 cm long and w cm wide. The perimeter of the rectangle is 182 cm. What is the width, w?
joja [24]

Answer:

w = 21

Step-by-step explanation:

i've done this kind of thing before a million times

5 0
2 years ago
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