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Crank
3 years ago
5

What is the value of 3x² + 2y3 when x = -4 and y = -2

Mathematics
2 answers:
skad [1K]3 years ago
7 0
Ummmmmmm -26 ......... in
Sati [7]3 years ago
7 0

Answer:

80

Step-by-step explanation:

3x^2 + 2y^3 = (3 * (-4))^2 + (2 * (-2))^3 = (-12)^2 + (-4)^3 = 144 + (-64) = 80

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A window shaped like a parallelogram has a has a area of 18 1/3 square feet. The height of the window is 3 1/3 feet. How long is
RideAnS [48]

Answer:

5.5 feet

Step-by-step explanation:

This is because 3 1/3 times 5.5 is 18 1/3

4 0
3 years ago
What is the slope-intercept equation of the line?
Tanzania [10]

Answer: The general form for a line in slope-intercept will be y=mx+b.

Step-by-step explanation:

The equation of any line can be found in this form if the slope and y-intercept can be found and substituted in for m and b respectively.

8 0
3 years ago
Explain how to factor the following: <br> 16x^2 – 40x – 24
777dan777 [17]

Answer:

8 [ (x-3) (2x+1) ]

Step-by-step explanation:

Factoring  2x2 - 5x - 3  

The first term is,  2x2  its coefficient is  2 .

The middle term is,  -5x  its coefficient is  -5 .

The last term, "the constant", is  -3  

Step-1 : Multiply the coefficient of the first term by the constant   2 • -3 = -6  

Step-2 : Find two factors of  -6  whose sum equals the coefficient of the middle term, which is   -5 .

     -6    +    1    =    -5    That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -6  and  1  

                    2x2 - 6x + 1x - 3

Step-4 : Add up the first 2 terms, pulling out like factors :

                   2x • (x-3)

             Add up the last 2 terms, pulling out common factors :

                    1 • (x-3)

Step-5 : Add up the four terms of step 4 :

                   (2x+1)  •  (x-3)

            Which is the desired factorization

3 0
3 years ago
Please HELP!!!
madam [21]

Answer:

15w+50=t

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A cake recipe calls for 2 1/4 cups of flour. Mrs Allen measured 3/4 cup of whole wheat flour and plans to use bleached flour for
grigory [225]

Answer:

she should use 1 2/4 cups of bleached flour

5 0
3 years ago
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