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kondaur [170]
2 years ago
11

Simplify 5(×-y)-(x-y)

Mathematics
2 answers:
Grace [21]2 years ago
8 0

Answer:

4x -4y

Step-by-step explanation:

5(x-y)-(x-y)

Distribute

5x -5y - x +y

Combine like terms

5x -x -5y +y

4x -4y

Talja [164]2 years ago
6 0

Answer:4x-4y

Step-by-step explanation:

5(x-y)-(x-y)

open brackets

5x-5y-x+y

Collect like terms

5x-x-5y+y

4x-4y

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There are currently 17 frogs in a (large) pond. The frog population grows exponentially, tripling every 6 days. How long will it
Tema [17]

Answer:

t=11,11 days

Step-by-step explanation:

F=frogs poblation, t=time, be the variables dF/dt = KF, dF/F=Kdt, integrating \int\limits^ {} \, dF/F =K\int\limits^ {} \, dt⇒ LnF=Kt+c,F=ce^{Kt}; Knowing t=0, F=17 and t=6 F=51 (tripling every 6 days (17*3)), F=ce^{K0} = F=c=17; F=17e^{6K} =51⇒e^{6K} =51/17; K6=ln\frac{51}{17} ; K=ln\frac{51}{17}/6=0.183, so F=17e^{0,183t}, now if F=130, t=? we have:

130=17e^{0.183t} =e^{0.183t} =130/17; 0.183t=ln(130/17); t=ln(130/17)/0.183 = 11,11

8 0
3 years ago
Write and solve a proportion to answer the question. 30% of what number is 9? ​
Vikentia [17]

Answer:

The answer would be 30.

Step-by-step explanation:

Calculating 9×100÷30 equals 30 and that would be your answer.

8 0
2 years ago
Read 2 more answers
Please help me solve this ;-;
Digiron [165]

9514 1404 393

Answer:

  C  log3(√((x -4)/x)

Step-by-step explanation:

The applicable rules of logarithms are ...

  log(a/b) = log(a) -log(b)

  log(a^n) = n·log(a)

The base is irrelevant, as long as all logs are to the same base.

__

  \dfrac{1}{2}(\log_3{(x-4)}-\log_3{(x)})=\dfrac{1}{2}\log_3(\dfrac{x-4}{x})=\boxed{\log_3\left(\sqrt{\dfrac{x-4}{x}}\right)}

6 0
3 years ago
In a group of 60 students, 18 students take Algebra I, 20 students take Algebra II, and 10 students take both subjects. How many
frosja888 [35]
Your answer is B. 12. 

12 kids are unaccounted for after you subtract the kids that take A1, then A2, the both subjects. 
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3 years ago
What is the slope of the graph of<br> y = -3x + 2?
Ne4ueva [31]

Answer: -3

Step-by-step explanation:

5 0
3 years ago
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