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pashok25 [27]
4 years ago
15

Which expression is equivalent to (3x-5y)+(x+2y) A.4x-7y B.4x-3y C.4x+3y D.4x7y

Mathematics
2 answers:
Andreas93 [3]4 years ago
6 0

Answer:

B.4x-3y

Step-by-step explanation:

(3x-5y)+(x+2y)

Combine like terms

3x+x -5y +2y

4x -3y

kvv77 [185]4 years ago
3 0
Your answer would be B ! 4x-3y !
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Samantha correctly answered 36 out of 48 questions on a test. She must score 70% or greater to pass the test. Did she pass?
lys-0071 [83]

Answer:

Yes

Step-by-step explanation:

You see that you need a percentage. You are given the amount that she got wrong, assuming the questions are weighted the same, you divide 36 by 48. This gives you .75. Then you multiply .75 by 100% giving you 75%.

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3 years ago
Can anyone help me with these two questions
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3 years ago
Bryan hiked up to the top of City Creek in 3 hr and then returned down the canyon to the trailhead in another 2 hr. His speed do
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3 years ago
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PtichkaEL [24]
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8 0
3 years ago
Jill has been watching the squirrels that live in her neighborhood. The number of squirrels changes each week. n f(n). 1 8. 2 12
qaws [65]

Answer: D) f(n)=8(1.5)^{n-1}


Step-by-step explanation:

From the given table we can see that this is not representing a linear function as the rate of change is not constant.

So it can be exponential growth function A(b)^{n-1},  where A is the initial amount , b is the multiplicative rate of growth and n is the time period in weeks.

Now here at n=1 , f(n)=8

Therefore, A=8

Now, for n=2

f(2)=8(b)^{2-1}\\\Rightarrow12=8b\\\Rightarrow\ b=\frac{12}{8}\\\Rightarrow\ b=1.5

By substitute the values of A and b in the above equation, we get the equation f(n)=8(1.5)^{n-1}

Therefore, the function best shows the relationship between n and f(n) is

f(n)=8(1.5)^{n-1}, where n is the number of weeks.

7 0
3 years ago
Read 2 more answers
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