Answer:
-9x + 10
Step-by-step explanation:
Answer:
8/15
Step-by-step explanation:
The reason is because to multiply, you take the reciprocal of the fraction...
So
4/5/3/-2, right? So that's basically -4/5 ÷ 3/-2 so 4/5 * -2/3. The reciprocal of a fraction is literally just flipping it. Now, you know how to multiply, right?
-4/5 * -2/3 = (you can't simplify) 8 (negative times negative = positive) / 5*3
so 8/5*3 = 8/15. 8/15 is 0.53333, or you can just keep it as a fraction.
2 (4+5) + 2 (2 + 3)
hope it helps
Answer:
please give the picture
Step-by-step explanation:
I will then solve this
Answer:
106°
Step-by-step explanation:
A quadrilateral inside a circle is a cyclic quadrilateral.
It means that the angles opposite are supplementary (add up to 180).
If we draw the quadrilateral ABCD, the angles A and C are supplementary and the angles B and D are supplementary.
Since we know A and C, we can write:
A + C = 180
x^2 + 3x = 180
x^2 +3x - 180 = 0
(x+15)(x-12) = 0
x= -15, or x = 12
Now, if we put x = -15, some angles become negative, so we disregard it and take x = 12.
Now finding B:
B = 7x - 10
B = 7(12) - 10
B = 74
<em><u>We also know that B + D = 180, so:</u></em>
<em>B + D = 180</em>
<em>74 + D = 180</em>
<em>D = 180 - 74 = 106</em>
