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:
$8.66
There is three feet in a yard. The fabric costs $4.33 for one foot of fabric so you would time that by 2 sand get $8.66
Step-by-step explanation:
5+5=10
3+1+1=10
1+1+1+1+1=10
Hope this Helps!
$0.85
38.25/45= .85
TO CHECK
.85 times 45 equals 38.25