Answer:
(x + 2)² = 7
Step-by-step explanation:
We have to complete the square in the given equation
3x² + 12x = 9
3x² + 12x - 9 = 0
3[x² + 4x -3] = 0
3[x² + 2(2x) + 4 - 4 - 3] = 0
3[x² + 2(2x) + 4] - 3 × 7 = 0
3[x² + 2]² - 21 = 0
(x + 2)² = = 7
Therefore, the square form of the equation is (x + 2)² = 7
Hope this helps (:
Answer:
<u>$600</u>
Step-by-step explanation:
The costs associated with the loan is:
$25 processing fee
1.5% interest, or, 1.5/100 = 0.015 of Loan
Total charge is given as $34, subtracting processing charge:
34 - 25 = $9 for interest
We now want:
What amount (loan amount we are looking for)'s 1.5% is $9??
We can say the amount to be "x", so we can write:

Hence, x is:

<u>Hence, Mr. Hernandez took a loan of $600</u>
Answer:
Step-by-step explanation:
hello :
put a=-3 and n=4 in : 3n2 – 2an
you have : 3(4)² – 2(-3)(4) =3(16)+6(4) =48+24 = 72
Answer:
B (300, 400)
Step-by-step explanation:
The profit maximization will be when the sum of the products will be greater. The maximum profit will be when x is 300 and y is 400. If we put in the equation :
P = 40x + 55 y
A - When x = 0 , y = 500
P = [40 * 0] + [55 * 500]
P = 27500
B -
When x = 300 , y = 400
P = [40 * 300] + [55 * 400]
P = 34000
C -
When x = 380 , y = 200
P = [40 * 380] + [55 * 200]
P = 26200
D -
When x = 400 , y = 0
P = [40 * 400] + [55 * 400]
P = 16000
Caleb - c
Kyras - k
k+c=37
c=2k-4
k+(2k-4)=37
3k=41
k=41/3= ~13.67 years old
c=37-k
c=(111-41)/3
c=70/3=~23.33 years old