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Marina86 [1]
3 years ago
13

How to find the measurement of a parallelogram

Mathematics
1 answer:
Shtirlitz [24]3 years ago
4 0

Answer:

In a parallelogram, consecutive angles are supplementary. Thus,

B +  C = 180^{\circ}

(2x+15)+x=180

3x+15=180

3x=165

x=55

Step-by-step explanation:

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-q2 - r2+ 3s<br> if q = 9, r = -6, s = -20<br> how do I solve this?
ANEK [815]

Step-by-step explanation:

-9(2)-(-6)(2)+3(-20)

(−9)(2)−(−6)(2)+(3)(−20)

=−18−(−6)(2)+(3)(−20)

=−18−(−12)+(3)(−20)

=−6+(3)(−20)

=−6+−60

=−66

6 0
3 years ago
Please answer all of above worth 32 points !!
schepotkina [342]

Answer: A. 35+1

B. 20+ 5z

C. 4 + 12

Step-by-step explanation:

This is just using the distributive property which is like foiling

7 0
3 years ago
Read 2 more answers
I need to know what the two sides are equal too
Ne4ueva [31]
Doing divison then cross multiplication
5 0
3 years ago
-4x-15y=-17<br>-x+5y=-13<br><img src="https://tex.z-dn.net/?f=%20-%204x%20-%2015y%20%3D%20%20-%2017%20%20%5C%5C%20%20-%20x%20%2B
salantis [7]
To solve this system of linear equations we need a little trick called elimination steps are below

we are given the following system of equations
- 4x - 15y = - 17
- x + 5y = - 13
if you look at the x variables in both equations you can see that we can easily eliminate them by multiplying the bottom equation by -4 as so
- 4x - 15y = - 17
- 4( - x + 5y = - 13)
simplify and we get
- 4x - 15y = - 17
4x - 20y = 52
now we can combine like terms on each side with the x's cancelling and get

- 35y = 35
now divide off -35
y = - 1
great now we can go back to our original system and pick a equation and substitute y back in to find x lets use

- x + 5y = 13
so now we substitute y and get
- x + 5( - 1) = 13
- x - 5 = 13
- x = 17
x = - 17

now we put x and y into one coordinate (x,y)
so now our FINAL ANSWER IS
(-17,-1)
6 0
3 years ago
For a particular angle Θ, the cosine function f(x) = a cos b(Θ) has the following values within one cycle of the function:
expeople1 [14]

If f(θ) = a cos(bθ), then from the first condition we find

f(0) = 3   ⇒   a cos(0) = 3   ⇒   a = 3

Together with the other conditions, it's evident that f(θ) has a period of π, so

2π/b = π   ⇒   b = 2

so that

f(θ) = 3 cos(2θ)

7 0
2 years ago
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