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Mariulka [41]
3 years ago
5

Which expressions are equivalent when m=1 and m=4? (picture attached)

Mathematics
2 answers:
laiz [17]3 years ago
8 0

Answer:

Option 2 is correct.

Step-by-step explanation:

Given the expressions

\text{5m-3 and 2m+5+m}

\text{3m+4 and m+4+2m}

\text{2m+7 and 3m-3+m}

\text{5m+3 and 4m+2+2m}    

we have to choose the option for which the expressions are equivalent when m=1 and m=4.

The substitution of values shown in table in attachment.

The only option 2 which gives the same values for m=1 and m=4 in both the expressions.

∴ Option 2 is correct.

Neporo4naja [7]3 years ago
4 0
The second one is the only equivalent equation. Simply plug in each variable in each equation. And compare!
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What's the answer for 4a - 13=19
pashok25 [27]
4a-13=19  add 13 to both sides
4a=32     divide by 4 on both sides
a=8

5 0
4 years ago
If p represents the original price, which of the following expressions could be used to calculate the sale price of a shirt that
dezoksy [38]

Answer:

C & D

Step-by-step explanation:

You can do these two ways. You can multiply the cost of the the shirt by 15% (.15 as a decimal.) and then subtract that answer from the original price of the shirt to get the sales price of the shirt.

You can also multiply the price of the shirt by 85% (.85 as a decimal) and that will give you the sales price without having to subtract. 15% + 85% = 100%, so 85% represents the sales price of the shirt.

Anyway, since you multiply, you can eliminate choice A & B.

Since the direction in the question says to select all that apply, I would check both C & D.

C is the equation of the first way I talked about- Price - 15% * price

C       p - 0.15p

D is the equation of the second way I talked about. Price times 85%

D            0.85p

7 0
3 years ago
Factor 4x^4yz-16y^3z
Iteru [2.4K]

Answer:

<h2>4x⁴yz - 16y³z = 4yz(x² - 2y)(x² + 2y)</h2>

Step-by-step explanation:

4x^4yz-16y^3z\\\\4x^4yz=4yz\cdot x^4\\\\16y^3z=4yz\cdot4y^2\\\\4x^4yz-16y^3z=4yz\cdot x^4-4yz\cdot4y^2=4yz(x^4-4y^2)\\\\x^4-4y^2=x^{2\cdot2}-2^2y^2=(x^2)^2-(2y)^2=(x^2-2y)(x^2+2y)\\\\Used:\\\\(a^n)^m=a^{nm}\\\\(ab)^n=a^nb^n\\\\a^2-b^2=(a-b)(a+b)\\\\4x^4yz-16y^3z=4yz(x^2-2y)(x^2+2y)


6 0
3 years ago
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svlad2 [7]
Answer: The correct answer is Choice D, 43 mm.

When you know 2 sides of a triangle, you can find the range for the final side of the triangle. 

First, if we subtract 36 - 23 = 13, the third leg must be more than 13. Otherwise, the two smaller legs would not meet to make the third leg.

Second, if we add 36 + 23 = 59, the third leg must be less than 59. Otherwise, the third leg would reach further than the other two legs could reach.

43 is the only number larger than 13 but smaller than 59 in our list.
7 0
3 years ago
1. The following statement is false. Highlight the two words that should be
mafiozo [28]

Answer:

highlight input and output.

Step-by-step explanation:

sorry if this doesn't work. i'm not 100% sure but its worth a try.

4 0
3 years ago
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