2 years ago

Find each of the following sums and differences. Write your answer in simplest standard form. (Help with b and d)

1 answer:

7 0

Good job, you started on the right track, you just have to finish. You have to combine like terms(anything that's the same like x^3 and x^3, or like 8 and 2) (b): 2x^3+4x^2-9x+4 (d)6x^3-13x^2+11x+10 Hopefully that helps, and I'm sorry I'm bad at explaining

You might be interested in

Which pair of points have equal x-coordinates

aniked [119]

The pair of points that are equal to x coordinates is (0,0)

8 0

2 years ago

What is the vertex of (x) = –16x² + 64x + 80.

cricket20 [7]

Answer:

Step-by-step explanation:

f(x) = a(x - h)² + k - the vertex form of the equation of the parabola with vertex (h, k)

$f(x) = -16x^2+ 64x + 80\\\\f(x) = -16(x^2- 4x) + 80\\\\f(x) = -16(\underline {x^2-2\cdot2x\cdot2+2^2}-2^2) + 80\\\\f(x) = -16\big[(x-2)^2-4\big] + 80\\\\f(x) = -16(x-2)^2+64 + 80\\\\\bold{f(x)=-16(x-2)^2+124\quad\implies\quad h=2\,,\quad k=124}$

<u>The vertex is </u><u>(2, 124)</u>

7 0

2 years ago

Figure ABCDE was reflected across the line y = r to

marysya [2.9K]

Answer:

-2.6

Step-by-step explanation:

7 0

2 years ago

Sebastian and his family picked 4 1/4 bushels of red apples and 2 5/6 of green apples at the orchard. How many more red apples w

11111nata11111 [884]

Answer:

1 5/12

Step-by-step explanation:

4 1/4- 2 5/6= 1 5/12

Also 1 5/12+ 2 5/6= 4 1/4

8 0

2 years ago

Mrs. Kennard has a circular garden with radius of 4.5 ft. she wants to put up a wood fence around half of garden and a steel fen

sveticcg [70]

Answer:108.33, assuming that the wood fence goes around the garden and doesn’t cut across it as well

Step-by-step explanation: 4.5 times 2 times pi to find circumference. Divide by 2 because it is only half of garden. Times by 12 to convert to inches. Divide by 36. Multiply by 23.

6 0

2 years ago