5a-2b=c solve for a

2 answers:

3 0

When trying to find value of variable, always try to get it alone.

5a-2b=c

Add 2b for both sides.

5a=2b+c

Divide by 5

Answer: 2b+c/5

adelina 88 [10]3 years ago

3 0

5a + -2b + 2b = 2b +c
-2b + 2b = 0
5a + 0 = 2b + c
5a = 2b + c
a = 0.4b = 0.2c
simplified
a = 0.4b + 0.2c

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Lorico [155]

Just apply the Pythagoras Theorem,

LN² = LM² + MN²

LN² = 7² + 8²

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In short, Your Answer would be: Option D

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7 0

3 years ago

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Use substitution to solve the system of equations.<br> y + x = 3<br> y = 1.5x + 1

jeyben [28]

Answer:

x=0.8, y=2.2 (0.8, 2.2).

Step-by-step explanation:

y+x=3

y=1.5x+1

-------------

1.5x+1+x=3

2.5x=3-1

2.5x=2

x=2/2.5

x=0.8

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4 years ago

The position s(t) of a robot moving along a track at time t is given by s(t)=9t^2−90t+4.

Xelga [282]

The total distance traveled by the robot from t=0 to t=9 is 1422 units

Integration is a way in which smaller components are brought together in pieces to form a whole. Integration can be used in finding areas, volumes and so on.

Given that the position s(t) at any time t is given by the function:

s(t)=9t²−90t+4

The total distance traveled by the robot from t=0 to t=9 can be gotten by integrating the position function within the limits 0< t < 9

Therefore:

$Total\ distance = \int\limits^9_0 {s(t) \, dt \\\\Total\ distance = \int\limits^9_0 {(9t^2-90t+4) \, dt\\\\Total\ distance = [3t^3-45t+4t]_0^9\\\\Total\ distance=-1422\ units$