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aleksandr82 [10.1K]
3 years ago
10

Need help please, Algebra 1/Polynomials

Mathematics
1 answer:
expeople1 [14]3 years ago
3 0
It's the first choice.  If you multiply the first equation by 3, your y term is a +12, and if you multiply the second equation by 4, your y term is a -12.  When you add them the y terms cancel each other out.
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Find the area.<br> 7 cm<br> 4 cm<br> 1<br> 1<br> 4 cm<br> 122 cm<br> .<br> 1<br> 8 cm<br> 18 cm
Naddik [55]

Answer: ok i got this. 9.79 cm^2 ???

Its really hard to understand the numbers shown in the picture or even written in the question ≡(▔﹏▔)≡

4 0
3 years ago
Please help with these questions and show how u found them! i will mark brainliest !
Georgia [21]

Answer:

Step-by-step explanation:

Question 3

5 (k + 4) - 2k

Use distributive property of multiplication.

5k + 20 -2k

Combine like terms to get your answer.

3k +20

Question 4

2 (3 + d - 1)

Simplify the expression in the parenthesis.

2 (2 + d)

Use distributive property of multiplication.

4 + 2d

If you wanted it to be accepted at higher levels, switch the terms around.

2d + 4

7 0
3 years ago
Question 5<br> What is the area of the figure below?<br> 4 cm<br> 5 cm<br> 3 cm<br> 5 cm
kobusy [5.1K]

Answer:

10

Step-by-step explanation:

5 0
3 years ago
2(3/5n +3) - (2/3n-1)
borishaifa [10]

Hey there! :)


2(3/5n + 3) - (2/3n - 1)


Simplify.


(2 * 3/5n) + (2 * 3) - (2/3n -1)


Simplify.


6/5n + 6 - 2/3n + 1


Add like terms.


(6/5n - 2/3n) + (6 + 1)


Make the fractions have the same denominator by multiplying fraction 1 (6/5n) by 3/3 and fraction 2 (-2/3n) by 5/5.


6/5n * 3/3 = 18/15n


-2/3n * 5/5 = -10/15n


So, our new equation looks like this : (18/15n - 10/15n) + (6 + 1)


Simplify.


8/15n + 6 —> final answer.


Hope this helped! :)

4 0
3 years ago
Read 2 more answers
Which is the most efficient way to solve this equation?<br> X-68 = 122
Iteru [2.4K]

Answer:

x = 190

Step-by-step explanation:

x - 68 = 122

x = 122 + 68

x = 190

7 0
4 years ago
Read 2 more answers
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