Given 2x² = -8, x isa. -2b. 2c. 2i or -2id. 4i or -4i

Mathematics

1 answer:

marishachu [46]3 years ago

5 0

Your answer is (a) because 4 times 2 is 8 but since it's negative 2 it's negative 8

You might be interested in

Suppose you have $500,000 for retirement in 20 years.Your account earns 6% interest. How much would you need to deposit in the a

laiz [17]

Answer:

30,000

Step-by-step explanation:

What I did was 6 divided by 100 and I got 0.06 times the the 500,000 and got 30,000 so your answer should be 30,000. Hope this helps and let me know if I'm wrong. have a great day!

6 0

3 years ago

Plz, help! I don't know this ! will give brainlest!

Jlenok [28]

Answer:

its the mean for the data, its showing you the average studying time

7 0

3 years ago

Find the simple interest on 7,200 at 3/4% for 5 years

lakkis [162]

Answer:

$7474.08

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Simple Interest Rate Formula: $\displaystyle A = P(1 + r)^t$

A is final amount
P is principle (initial) amount
r is rate
t is time (in years)

Step-by-step explanation:

Step 1: Define

P = 7200

r = 0.75% = 0.0075

t = 5

Step 2: Solve for A

Substitute in variables [Simple Interest Rate Formula]: $\displaystyle A = 7200(1 + 0.0075)^5$
(Parenthesis) Add: $\displaystyle A = 7200(1.0075)^5$
Evaluate exponents: $\displaystyle A = 7200(1.03807)$
Multiply: $\displaystyle A = 7474.08$