Answer:
2 real roots: x = -2 multiplicity 2.
Step-by-step explanation:
The discriminant = b^2 - 4ac
= 16^2 - 4*4*16
= 0
This means there are duplicate roots, 2 roots having the same value.
4x^2+16x+16=0
(2x + 4)(2x + 4) = 0
x = -2 , -2.
Answer:
The first one on the left
Step-by-step explanation:
11. 2x+3x+1=21
5x+1 =21
5x=20
x=4
TU= 2(4) which is 8
UB= 3(4)+1 which is 13
12. 4x-1 +2x-1=5x
6x-2=5x
-2=-1x
2=x
X=2
TU= 7
UB= 3
TB=10
Problem 13:
2x-8=x+17
2x=x+25
x=25
AB =42
BC=42
AC=84
Problem 14:
3x-31
-x+6
=
2x-37 for BC part now we solve for x
x+6=2x-37
6=x-37
43=x
So :
X=43
AB=49
AC=98
BC=49
Answer:
77 and 91
Step-by-step explanation:
So essentially, half 168 and half 14. You're left with 84 and 7. So, subtract 7 from 84 and add 7 to 84. You're left with 77 and 91. To verify, just add them both up and you'll see they equal 168. Then, subtract 77 from 91 and you'll see that 91 is 14 more than 77 :)
Answer:
750
Step-by-step explanation:
150 x 5 = 750 and counts for Mon Tus Wes Thu Fri
