Answer:
b = 72
c = 36
d = 144
Step-by-step explanation:
As every angle in the pentagon are equal (the lines inside every angle mean they are equal), angles on a straight line must add up to 180° ∴
A = 108°
108 + b = 180
180 - 108 = b
72 = b
As the top left angle of the triangle is also on a straight line with one of these angles, the value of this angle is also 72°.
All angles in a triangle must add up to 180° ∴
72 + 72 + c = 180
144 + c = 180
c = 180 - 144
c = 36
Angles on a straight line must add to 180° ∴
d + c = 180
d + 36 = 180
d = 180 - 36
d = 144
Hope this helps!
To find the solutions, set the equation equal to 0. You get
![4 x^{2} +34x = 0](https://tex.z-dn.net/?f=4%20x%5E%7B2%7D%20%2B34x%20%3D%200)
. We are going to factor our things that both terms have in common, a 2, and an x. This gives you
![2x(2x+17)](https://tex.z-dn.net/?f=2x%282x%2B17%29)
. How do you know this is true? If you distribute back out, you get the same as the original problem.
Now set these both equal to zero. 2x = 0, 2x + 17 = 0. Divide both sides by 2, you get one solultion of x = 0. For the other solution, subtract 17 from both sides; 2x = - 17. Divide by 2, x = -17/2
Your solutions are x = {- 17/2, 0}
To check, plug these back into the original equation to see if they equal zero. 4(0)^2 + 34(0) = 0 + 0 = 0
4(- 17/2)^2 + 34(- 17/2) = 289 + (- 289) = 289 - 289 = 0
Answer:
i think id you put the options it would be easier to answer
Step-by-step explanation:
173
2√346
<u> -2 </u>
14
<u> -14 </u>
06
<u> -6</u>
0
The answer is 173 (tried my best to show my work)
Answer:
1. 2 wholes is (2) tenths and (10) hundredths
2 wholes is (0) tenths and (4) hundredths
difference of 2.3 and .26 is (2.04)
2. Yasmine estimated the difference to be (82). The actual difference is (81.91)
Step-by-step explanation: