Answer:
x = -7 ±3i
Step-by-step explanation:
(x+7)^2+9=0
Subtract 9 from each side
(x+7)^2+9-9=0-9
(x+7)^2=-9
Take the square root of each side
sqrt((x+7)^2) = ±sqrt(-9)
We know sqrt(ab) = sqrt(a) sqrt(b)
x+7 = ±sqrt(-1) sqrt(9)
We know that sqrt(-1) is the imaginary number i
x+7 = ±i *3
x+7 =±3i
Subtract 7 from each side
x+7-7 = -7 ±3i
x = -7 ±3i
Answer:
$7474.08
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
Simple Interest Rate Formula: 
- A is final amount
- P is principle (initial) amount
- r is rate
- t is time (in years)
Step-by-step explanation:
<u>Step 1: Define</u>
P = 7200
r = 0.75% = 0.0075
t = 5
<u>Step 2: Solve for </u><em><u>A</u></em>
- Substitute in variables [Simple Interest Rate Formula]:

- (Parenthesis) Add:

- Evaluate exponents:

- Multiply:

The 2 equations have no solution. If both are true, then
-3x + 3y = 4
-x + y = 4/3
Thus, 3 = 4/3, which is obviously wrong. Pls mark me as brainliest!
<span>Let x be the number. By the given above, the relationship between the numbers and the newly-introduced variable is expressed as (2/5)(x) = 14. To determine the value of x, divide 14 by 2/5. This will give us the answer which is equal to 35. Hence, the answer to this item is 35. </span>
#1-9. #10-12
the answer to the questions