All categories

3 years ago

now i know you multiply the variables with the equation but i dont exactly know if im doing this right.

Mathematics

1 answer:

inn [45]3 years ago

6 0

Answer:

= -48

Step-by-step explanation:

3x^3 - 8y^2

3 ( 2 )^3 - 8 ( -3 )^2

first you solve the exponents

3 ( 8 ) - 8 ( 9 )

multiply

24 - 72

subtract

= - 48

hope this helps

You might be interested in

Solve 4^x-5 = 6 for x using the change of base formula log base b of y equals log y over log b

Ronch [10]

Answer:

$4^x-5=6$ gives the solution $x=\frac{\log(11)}{\log(4)}$ .

$4^{x-5}=6$ gives the solution $x=\frac{\log(6)}{\log(4)}+5$ .

Step-by-step explanation:

I will solve both interpretations.

If we assume the equation is $4^{x}-5=6$ , then the following is the process:

$4^x-5=6$

Add 5 on both sides:

$4^x=6+5$

Simplify:

$4^x=11$

Now write an equivalent logarithm form:

$\log_4(11)=x$

$x=\log_4(11)$

Now using the change of base:

$x=\frac{\log(11)}{\log(4)}$ .

If we assume the equation is $4^{x-5}=6$ , then we use the following process:

$4^{x-5}=6$

Write an equivalent logarithm form:

$\log_4(6)=x-5$

$x-5=\log_4(6)$

Add 5 on both sides:

$x=\log_4(6)+5$

Use change of base formula:

$x=\frac{\log(6)}{\log(4)}+5$

6 0

2 years ago

Can Julie win if she reads 8 books

bogdanovich [222]

Answer:

Yes, she can.

Step-by-step explanation:

12 < 5+8

5 0

3 years ago

Read 2 more answers

Please answer this first to answer CORRECTLY, gets brainliest.

Komok [63]

I think it would be 78.54

4 0

2 years ago

Read 2 more answers

Help me pleaseeee :) for brainliest answer

kifflom [539]

Answer:

2:14, 1:7, 3:21, and 18:126

Step-by-step explanation:

They are all multiplying by 7.

2*7= 14

1*7= 7

3*7= 21

18*7= 126

Hope this helps! :)

8 0

2 years ago

Artist 52 [7]

Answer:

52/79

Step-by-step explanation:

One costume = 156 (This is our numerator.)

All visitors = 156 + 58 + 23 = 237 (This is our denominator.)

156/237

Find the GCF to simplify (sneak peek it's 3)

156/3 = 52

237/3 = 79

52/79 (tada!)

4 0

2 years ago

now i know you multiply the variables with the equation but i dont exactly know if im doing this right.​

now i know you multiply the variables with the equation but i dont exactly know if im doing this right.