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Kay [80]
3 years ago
9

which expression is equivalent to 2m(3/2m+1) +3 (5/3m-2) ? A .3m^2+5m-1 B. 3/4m^2 +23/9m-6 C. 3m^2+7m-6 D. 3/4m^2+5/9m-1 please

explain with steps
Mathematics
2 answers:
vlabodo [156]3 years ago
8 0

Answer:

b

Step-by-step explanation:

horrorfan [7]3 years ago
5 0

Answer:

66

Step-by-step explanation:

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Temka [501]

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Therefore the answer is (3,-2)

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Len [333]

4y=16

y is the variable. If you were to solve the equation you would write the equation as 4(4)=16.

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3 years ago
A sum has five addends. Each addend is a unit fraction. The sum is 1. What are the addends?
Bogdan [553]
I would assume 1/5 is your answer. As 1/5+1/5+1/5+1/5+1/5 = 5/5 which is 1.
4 0
3 years ago
Read 2 more answers
For what values of t on the interval [0, 21 ]is the instantaneous velocity positive​ (the projectile moves​ upward)?
OLEGan [10]

Answer:

0 <=t<=21

Step-by-step explanation:

Projectile is Moving upwards on an interval of (0 to 21), if we plot Velocity vs Time and denote positive y-axis above 0 and negative y-axis below  0(for velocity), then from 0 to 21 t projectile is moving upwards and has positive velocity, when the projectile reaches the top of it's motion and returns back down to ground it's velocity is negative and is plotted below the y =0 (note that is for t > 21).

hence for the interval 0 <=t <=21 the instantaneous velocity is positive (Note, instantaneous velocity is also the derivative of the velocity or the slope ).

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