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2 years ago

Find the sum of 6a - 5b + c, -2a +4b -2c

Mathematics

1 answer:

Sphinxa [80]2 years ago

4 0

Answer:

4a-b-c

Step-by-step explanation:

we first look at the letters of each number. if there is only a letter, there is an imaginary 1 in front of it. we need to make sure that we add the numbers that have the exact same letters because they are known as like terms. we cannot add 6a and 4b because the letters are different and they are known as unlike terms. When we add numbers with the same letter ONLY the number changes

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Which expression shows the perimeter of the triangle in simplest form?

ankoles [38]

Answer:

D. 6x + 3

Step-by-step explanation:

A perimeter is just the sum of all sides of a shape.

First, write an equation to add all sides of the triangle:

(x + 4) + (3x - 2) + (2x + 1)

What is inside the parentheses is all already simplified. Also, it is addition, so the order in which we add does not matter. So, we can now get rid of the parentheses and combine like terms:

x + 3x + 2x + 4 -2 + 1

6x + 3

And that's our final answer: 6x + 3

I would appreciate brainliest, have an amazing day!

7 0

3 years ago

Can someone help me with these 2 please thank you :)

Reika [66]

Answer:

11. -0.250

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3 0

3 years ago

Gnesinka [82]

Answer:

C. –x + 8y = 56

Step-by-step explanation:

Write in standard form.

x − 8 y = − 56

This is a linear function in the slope - intercept form:

y = m x + b and we need a standard form:

a x + b y = c

y = 1/8 x + 7 / * 8 ( we will multiply both sides of equation by 8 )

8 y = x + 56

- x + 8 y = 56 / * ( - 1 )

x - 8 y = - 56

The equation is y = 1/8x + 7

Standard form equation is Ax + By = C, where A > = 0.

First eliminate the fractions by multiplying the equation by 8

8y = x + 56

Subtract x from each side

-x + 8y = 56

SInce x coeficient can't be negative multiply the equation by negative one.

x - 8y = -56

4 0

3 years ago

What is z to the -6th power

jeka94

Answer:

z^(-6) or 1/z^6

Step-by-step explanation:

What is z to the -6th power?

z^(-6) = 1/z^6

4 0

2 years ago

If the typical balance on Lucy's credit card is $650 and the interest rate (APR) on her credit card is 18%, how much in interest

mafiozo [28]

General Idea:

$Amount \; Charged \; in \; a \; Month \; = \; Monthly \; Interest \; Rate \; \times Typical \; Creditcard\; Balance\\ \\$

$Amount \; Charged \; in\; a\; month =\frac{18\%}{12} \times 650 \; = 0.015\times650=9.75$

Conclusion:

Amount of interest that Lucy to be charged in a typical month is <u>$9.75</u>

7 0

3 years ago

Read 2 more answers

Find the sum of 6a - 5b + c, -2a +4b -2c​

Find the sum of 6a - 5b + c, -2a +4b -2c