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Anna71 [15]
3 years ago
9

Help, i dont know any of this lol

Mathematics
1 answer:
ale4655 [162]3 years ago
7 0

Answer:

18m³ + 2m² – m

Combine (add and subtract) the terms that have the same variable and exponent. Do not combine terms that have different exponents or variables.

5m³ +5m³ + 8m³ = 18m³

3m² +3m² –4m² = 2m²

–2m –2m +3m = –m

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What is 2x-4. I really don’t understand
ddd [48]

Answer:

2 * -4 = -8

Step-by-step explanation:

2 * -4 = -8

It is just like multiplying two numbers like... 2 * 4 = 8

You must need to know that:

+a * -b = -c

-a * -b = +c

+a * +b = +c

In your question;

+a * -b = -c

a = 2

b = -4

c = -8

therefore:

2 * -4 = -8

3 0
3 years ago
Alejandra correctly wrote the equation y – 3 = 1/5 (x – 10) to represent a line that her teacher sketched. The teacher then chan
Nataly [62]
(-3,-10).....slope(m) = 2

y - y1 = m(x - x1)
y - 3 = 2(x - 10)
8 0
3 years ago
Kelsey deposited $3,600 in a bank account with an annual interest rate of 4.25%. How much
svp [43]

Answer:

so you use the formula:

A = P(1 + r/n)nt

Where:

A = Accrued Amount (principal + interest)

P = Principal Amount

I = Interest Amount

R = Annual Nominal Interest Rate in percent

r = Annual Nominal Interest Rate as a decimal

r = R/100

t = Time Involved in years, 0.5 years is calculated as 6 months, etc.

n = number of compounding periods per unit t; at the END of each period

and you will get:

A = $ 4,432.85

A = P + I where

P (principal) = $ 3,600.00

I (interest) = $ 832.85

8 0
3 years ago
The price of a watch was increased by 7% to 1350. what was the price before increase?
Ad libitum [116K]

Answer:

The price before increase = 1255.5

Step-by-step explanation:

7% of 1350 = \frac{7*1350}{100}

= 94.5

The price before increase = 1350 - 94.5

The price before increase = 1255.5

6 0
3 years ago
Read 2 more answers
Twelve pounds of beans are distributed equally into 8 bags to give out at the food bank.
siniylev [52]

Answer:

1 1/2 or 1.5

Step-by-step explanation:

12 divided by 8

brainliest?

4 0
3 years ago
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