Answer:
Step-by-step explanation:
<u>Standard equation of parabola is:</u>
The parabola is opening upward if a > 0 and opening downward if a < 0
The given parabola has a = 3 > 0, therefore it is opening upward
B- 20
a- 70
those are the best answers I can give you
Answer:
8) <em>x</em>=9
10) 23 degrees
Step-by-step explanation:
8) vertical angles are congruent to each other so we can set the expressions as such and solve:
<u>7x</u> + 3 = <u>10x</u> - 24
<u>3</u> = 3x<u> - 24</u>
<u>27</u> = <u>3x</u>
9 = x
10) since the angles are complementary they equal 90 degrees, so we can set the expression like this and solve for <em>x</em>:
<u>12x</u> + 7 + <u>6x</u> - 7 = 90
18x <u>+ 7 - 7</u> = 90
<u>18x</u> = <u>90</u>
x = 5
now we plug it back into the expression equivalent to the measure of angle O:
<u>6(5)</u> -7
<u>30 - 7</u>
23 degrees
Answer:
adding 11
Step-by-step explanation:
b - 11 = 3
Use the inverse of -11
b = 3 + 11
b = 14
Answer:
v=4
Step-by-step explanation:
-23=3v+9-11v
-23=9-8v
-32=-8v
v=4