2 years ago

Solve Q=3a+5ac for a

1 answer:

8 0

Here is how you solve...

Q= 3a+5ac

take out the common variable.
Q= a(3+5c)

get A by its self so divide each side by (3+5c).
Q/a(3+5c)= a(3+5c)/(3+5c)

Q/a(3+5c)=A

So your answer is A= Q/a(3+5c)

hope that helped.

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Is b a linear combination of a1, a2, and a3?

salantis [7]

A1 = (1, -2 , 0) ; a2 = (0,1,2) ; a3 = (5,-6,8) ; b = (2,-1,6)

2*a1 = (2, -4,0)
3*a2 = (0, 3, 6)
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sum = (2, -1, 6) = b

Hope this helps

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2 years ago

Explain why (1/2)4 =1/16

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${ \left( \frac { 1 }{ 2 } \right) }^{ 4 }\\ \\ =\frac { 1 }{ 2 } \cdot \frac { 1 }{ 2 } \cdot \frac { 1 }{ 2 } \cdot \frac { 1 }{ 2 }$

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2 years ago

Read 2 more answers

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ELEN [110]

The graph of g is one-fifth as steep as the graph of f.

The function g basically takes the inputs for f and multiplies them by one-fifth, which means the outputs are one-fifth times those of f. Multiplying by one-fifth makes something smaller (it's the same as dividing by five). It helps to visualize this relationship, so I've attache the graphs below.