So you have your polynomial. To factor this out, you need to find the factors of -45 that will add up to 3. These two factors would be -5 and 8. So, you have factored your polynomial! (x-5)(x+8). If you are still unsure, simply use the FOIL method to check and see if you get the same polynomial back. Hope this helps!

7 0

3 years ago

If a recipe for 24 cookies needs 2 cups of flour, how many cups would we need to make 42 cookies?

TEA [102]

Answer:

3 1/2 cups

Step-by-step explanation:

24=2

42=x

24x=84

/24 /24

3.5

6 0

2 years ago

A square pyramid and a cube have the same total surface area. The width of the cube is 8 centimeters. The base of the pyramid is

azamat

Answer:

Step-by-step explanation:

surface area of cube = 6×8² = 384 cm²

lateral area of pyramid = surface area of pyramid - base area

= 384 - 8²

= 320 cm²

area of triangular face = 320/4 = 80 = ½(base)(slant height) = ½(8)(slant height)

slant height = 20 cm

6 0

2 years ago

Find the perimeter of the following shapes.

DerKrebs [107]

Answer:

4. (a) = 12 m

(b) = 27 cm

(d) = 18 km

(e) = 10 m

(f) = 36 cm

Step-by-step explanation:

Perimeter is sum the distance round a figure.

if a shape has those, they signify that the shape has two side that are equal

a) 4 + 4 + 2 + 2 = 12. The top part is equal to the bottom part signified by those two lines. And the left is equal to the right .

b) 10 + 10 + 7 = 27

c) 5 + 5 + 8 + 6 = 24

d) 3 + 3 + 6 + 6 = 18

e) 2.5 + 2.5 + 2.5 + 2.5 = 10

f) 12 + 7 + 7 + 5 + 5 = 36

If you need any clarification or more explanation pls do mention in the comment section. i would like to help more.

Hope this helps and if it does pls mark as branliest answer thx.

6 0

3 years ago