Answer:
x = 1.47 or x = -7.47
Step-by-step explanation:
x²+6x+9=20
This is a quadratic equation
x²+6x+9-20=0
x²+6x-11=0
Step 1 : Write the quadratic formula
x = <u>-b±√b²-4(a)(c)</u>
2a
Step 2 : Substitute values in the formula
a = 1
b = 6
c = -11
x = <u>-6±√6²-4(1)(-11)</u>
2(1)
x = <u>-6±√80</u>
2
x = -3 + 2√5 or x = -3 - 2√5
x = 1.47 or x = -7.47
!!
Answer:
2(x+3)
Hope u get it correct!!!
Step-by-step explanation:
Answer:
8304
Step-by-step explanation:
1 box=48 books
173 boxes=48x173
=8304
Number 1 is A
Number 2 is C
Answer:
Step-by-step explanation:
Supplementary is the name of a relationship between 2 angles. If they add up to 180°, they will form a straight line and are supplementary.