Find the value of x^3 + y^3 – 12xy + 64 when x + y = (-4)

Answers

Answer 1
Answer:

Answer:

0

Step-by-step explanation:

Using the algebraic expansion

x³ + y³ = (x + y)³ - 3xy(x + y)

Given

x³ + y³ - 12xy + 64

= (x + y)³ - 3xy(x + y) - 12xy + 64

Substitute x + y = - 4 into the expression

= (- 4)³ - 3xy(- 4) - 12xy + 64

= - 64 + 12xy - 12xy + 64

= 0


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25/7= blank 39/51=blank

Answers

25/7 =

7 goes into 25 3 times with 4 left over

 25/7 = 3 4/7


39/51 =

divide top and bottom by 3

39/51 =13/17

Step-by-step explanation:

25/7 = 3.57142857      ( round to 3.57)

39/51 = 0.76470588 ( round to 0.76)

;)


Mike works in a toy store. One week, he worked 38 hours and made $220. The next week, he received a raise, so when he worked 30 hours he made $180. How much was his raise (to the nearest cent)?

Answers

Answer:

$0.21

Step-by-step explanation:

Let x be the amount of money earned per hour before raise and y be amount of money earned per hour after raise.

We have been given that before raise he worked 38 hours and earned $220. We can represent this information as: 38x=220

We are also told that the next week, he received a raise. After raise he worked 30 hours and made $180. We can represent this information as: 30y=180.

Let us solve for x and y.

x=(220)/(38)

x=5.7894736842105263

Therefore, before raise Mike earned $5.7894 per hour.

y=(180)/(30)

y=6

Therefore, after raise Mike earned $6 per hour.

Now let us subtract 5.7894 from 6 to find Mike's raise.

\text{Amount of raise}=6-5.7894

\text{Amount of raise}=0.2106\approx 0.21

Therefore, amount of Mike's raise to the nearest cent is $0.21.

At an animal shelter there are 15 dogs 12 cats 3 snakes and 5 parakeets which animal has 80% of the number of another animal

Answers

12 times 100 divided by 15 equals 80
So the answer is cats

What is 2 to the 10th power in scientific notation

Answers

1.024x 10^3 is the answer

2 to the 10th power is 1024
hope that helps!

Which one of these tables represent a non-linear function

Answers

Table no 3 is representing here a non-linear function.

Why table 3 is a non-linear function?

A nonlinear function, as its name suggests, is a function that is not linear. In other words, the graph of a nonlinear function is not a line, its graph can be anything other than a line

Since a nonlinear function is a function that is not a linear, its equation can be anything that is not of the form f(x) = ax+ b. One examples of nonlinear functions is, f(x) = x2 is nonlinear as it is a quadratic function.

The right answer is option 3.

Learn more about non-linear function, refer:

brainly.com/question/19629453

#SPJ2

Answer:

NUMBER3

Step-by-step explanation:

What is the value of each digit number of 58

Answers

The 5 is 50 and the 8 is 8
or 5 tens and 8 ones hope that helped :)