5y-5y^2-5+2+2y+3y^2-1
collect like terms
7y-2y^2-4
reorder the terms
-2y^2+7y-4
-2y^2+7y-4 is your final answer, I hope this helps!
Answer:
90
Step-by-step explanation:
180°-104°=76°( sum of angles A and B)
76°÷2=38°
x=38°
Bcuz it is an isosceles triangle ( a triangle with 2 equal sides). So, angle B and A are equal. thats why 76° must be divided by 2.
180°-104°=76°(angles on a straight line)
180°-76°=104° (sum of angle A and C)
104°÷2=52°
y=52°
it is also an isosceles triangle.
x+y=38+52=90°
Prove that sin 2x cos 2x=sin 3xx sin of the equation
Answer:
ax² + bx + c
Step-by-step explanation:
The form of a quadratic equation that is easy to use when finding the maximum or minimum value of the function is ax² + bx + c.
Suppose a quadratic function:
f(x) = 2x² - 8x + 9
Use ( -b/2a , f(-b/2a) ).
-b/2a
a = 2
b = -8
-(-8)/2(2)
8/4
= 2
f(2) = 2(2)² - 8(2) + 9
f(2) = 2(4) - 8(2) + 9
f(2) = 8 - 16 + 9
f(2) = 1
The minimum value of this quadratic function is (2, 1).
It represents a minimum value because a > 0.
C.
<u>The</u><u> </u><u>equat</u><u>ion</u><u> </u><u>should</u><u> </u><u>be</u><u>.</u><u>.</u><u>.</u>
a^2 + b^2 = c^2
x^2 + (x+3)^2 =10.81665383^2
<u>When</u><u> </u><u>you</u><u> </u><u>plug</u><u> </u><u>it</u><u> </u><u>in</u><u>.</u><u>.</u><u>.</u>
6^2 + (6+3)^2 = 117
6^2 + (9)^2 = 117
36 + 81= 117
