What is the value of -6x3-y2-3xy if x=-2 and y=4

The answer is:

The value of the given expression evaluated with x equals to -2 and y equals to 4, is equal to 56 units.

To solve the problem, we need to evaluate both variables for the given values:

and

So, we are given the expression:

Then, evaluating the given values for both variables, we have:

Hence, we have that the answer is:

The value of the given expression evaluated with x equals to -2 and y equals to 4, is equal to 56 units.

Have a nice day!

The value of given expression = 56

Step-by-step explanation:

It is given an expression in variable x and y

-6x³ - y² - 3xy

To find the value of given expression

Let expression be,

-6x³ - y² - 3xy

When x = -2 and y =4

-6x³ - y² - 3xy = -6(-2)³ - 4² - (3 * -2 * 4)

 = -6*-8 - 16 + 24

 = 48 - 16 + 24

 = 56

Therefore the value of given expression is 56

cosine

step-by-step explanation:

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.