Answer:
x=−2+3√2
Step-by-step explanation:
x2+4x+4−18=18−18
x2+4x−14=0
For this equation: a=1, b=4, c=-14
1x2+4x+−14=0
x=
−b±√b2−4ac
2a
x=
−(4)±√(4)2−4(1)(−14)
2(1)
x=
−4±√72
2
x=−2+3√2 or x=−2−3√2
Combine like terms so add 4b and 15b together and add 7 and 3 together and then the answer would be 19b-10
Answer:
y=-34
Step-by-step explanation:
16y-2=20
+2 +2
16y=-18
-16 -16
y= -34
Step-by-step explanation:
answer question number one
first convert it into improper fraction and take lvm of denominator and subtract
Answer:
22.7%
Explanation:
Given that last year stock for company A was $7200
The stock for company B last year was worth $3510
Stock in company A decreased by 24%
This means the new value of stock for company A became;
(100-24)/100 *$7200
76/100*$7200
0.76*7200 =$5472
Stock in company B decreased by 20%
This means the new value of stock for company B became;
(100-20)/100 *$3510
80/100*$3510
0.8*$3510
$2808
Original investors stock value was = $7200+$3510 =$10710
New investors stock value is = $5472+$2808=$8280
Decrease in value of stock = $10710-$8280 =$2430
percentage decrease in stock value = decrease in stock/original value of stock *100%
=2430/10710 *100 =22.689
=22.7%
