Answer:
c, d, a, b.
Step-by-step explanation:
I'm presuming that the original equation is 
.
First, isolate c. You can do this by subtracting 
from both sides: 
Next, simplify to 
.
Then, divide both sides by 7: 
Finally, simplify to 
.
Answer:
B
Step-by-step explanation:
|-8|=8, and all the others are less. hope that helped
Answer:
<h2>
<em><u>38</u></em></h2>
Step-by-step explanation:
She began with 38 books.
28 - 9 = 19
19(2) = 38
Hope this helps!
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
!!
2 hours per hour cause 1/4=15 min 1/2 times 4 equals 2 so 2 miles per hour
