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Eva8 [605]
3 years ago
12

What is the simplified expression for -3(2x- y) + 2y + 2(x+y)2

Mathematics
1 answer:
Step2247 [10]3 years ago
6 0

Answer:

7y-4x.

Step-by-step explanation:

I think that the last 2 shouldn't be there and the third option should be 7y-4x or all the options are incorrect.

-3(2x- y) + 2y + 2(x+y)

= -6x+3y + 2y+2x+2y

= -6x+2x+3y+2y+2y

= -4x+7y.

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Answer:

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Step-by-step explanation:

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4 0
2 years ago
Can you please help me please I really need help
Cerrena [4.2K]

Answer:

1)86

2)102

3)118

4)134

Step-by-step explanation:

1) so we know that the photographer started off with 86 photographs and has been uploading 16 each month since then

so in month 1 she would have 86

in month 2: 86+16=102

month 3: 102+16=118

month 4: 118+16=134

you could also use the expression

y=16x+70

how to get this equation: get slope(16) by subtracting p coords and m coord

substitute slope in slope intercept form

y=16x+b

insert in a coordinate pair(1,86)

86=16+b

b=70

hence y=16x+70

4 0
3 years ago
the function below represents the number of zombies, N, where t is the number of years since the zombies gained control of earth
raketka [301]
There is missing information about this question that I found online.
Given function is:
N(t) = 300\cdot 2^{-\frac{t}{8}}
The question is:
<span>Is this exponential growth or decay? Explain using your understanding of the properties of exponents.
</span>This is an exponential decay. 
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f(x)=b^{ax}
Parameter a is the key parameter that will tell how exponential function behaves. If it is positive we have an exponential growth. If it is negative we can rewrite function like this:
f(x)=b^{-ax}=\frac{1}{b^{ax}}
We can notice that in this case, the denominator will exhibit exponential growth, in other words, the functions rapidly declines. This is an exponential decay.
5 0
4 years ago
Read 2 more answers
2. Liz claimed that the polynomial 4x -12 + 2x is a trinomial because it has three
Nataly [62]

Answer:

see below

Step-by-step explanation:

The first step is to combine like terms

4x -12 + 2x

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3 years ago
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