Answer:
x = ±2
Step-by-step explanation:
3x ^2 -4 = 8
Add 4 to each side
3x ^2 -4+4 = 8+4
3x^2 =12
Divide each side by 3
3x^2 =12
3x^2/3 = 12/3
x^2 = 4
Take the square root of each side
sqrt(x^2) = ±sqrt(4)
x = ±2
To use division to find the decimal equivalent of a rational number, divide the top number by the bottom number. You will get a decimal number.
Answer:
20 orders: 1/2 The cupcakes would be: 1/5 and songs would be: 1/4
Step-by-step explanation:
I'm so sorry if I get this wrong! I'm pretty sure im correct but not positive
Answer:
b. A year and a half
Step-by-step explanation:
First, we can find the total cost
Next, we can divide by 50 in order to find out how many months it will take for the panel to pay for itself.
months
This is very close to 36 months, which is <u>A year and a half</u>.
2v+18=16-4(v+7). Take away the parenthesis.
2v+18=16-4v-28. Combine your like terms.
2v+18=-12-4v. Add 12
2v+30=-4v. Subtract 2v
30=-6v. Divide by -6
v=-5. This is your final answer.
