I need help please ..

Mathematics

1 answer:

koban [17]3 years ago

4 0

A is 18

B is 162

C is 18

D is 162

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Solve the system of equations using the linear combination method. {5m+3n=41 {3m−6n=9 Enter your answers in the boxes. m = n =

Masja [62]

These are linear equations that can be solved simultaneously;
5m+3n=41
3m-6n=9 (multiplying the first equation by 3 and the second by 5)

15m+9n=123
15m-30n= 45 (subtracting the two equations)
39n = 78
n = 2,
and for m, 3m = 9+6(2)
= 21
m = 7
Therefore, n=2 and m=7

8 0

3 years ago

27x+3=6 what does x equal

Digiron [165]

Answer:

1/9

Step-by-step explanation:

27x+3 = 6

-3 -3

27x = 3

/27 /27

× = 3/27 = 1/9

8 0

3 years ago

Read 2 more answers

Question is in picture need help asap

Andrej [43]

The given expression is:

$\sqrt[4]{ 9^{ \frac{1}{2}x } }$

4th root is equivalent to raising the expression to power $\frac{1}{4}$ . So, re-writing the expression by converting radical to exponent:

$( 9^{ \frac{1}{2}x } )^{ \frac{1}{4} } \\ \\ 
= 9^{ \frac{1}{8}x }$

Therefore, the given expression simplifies to $9^{ \frac{1}{8}x }$