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boyakko [2]
3 years ago
10

Factor completely -x^2+3x+28

Mathematics
1 answer:
jarptica [38.1K]3 years ago
6 0
(7 - x)(x + 4) = -x² + 7x - 4x + 28
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PLEAZE HELP IM FAILING THIS CLASS 9) The volume of a box is represented by x' +11x² + 20x – 32. The width of the box is x – 1, a
In-s [12.5K]

Answer:

Step-by-step explanation:

Volume of the box  =  x³ +11x² + 20x – 32        I think the ' is a typo for ³

      the width is x-1    and the height is x+8      

Find an expression for the length

       Vol = LWH    solve L

        Vol / (WH)   =  L     so

L  =  (x³ +11x² + 20x – 32) / (x-1) (x+8)      

                    so it would help to factor the numerator

       (x³ +11x² + 20x – 32)       I'm willing to bet (x-1) and  (x+8) are factors

                                               but I will plot the equation to find the three roots

        (x³ +11x² + 20x – 32)  = (x-1) (x+8) (x+4)

L  =  (x³ +11x² + 20x – 32) / (x-1) (x+8)

   =  (x-1) (x+8) (x+4) / (x-1) (x+8)           the (x-1) and (x+8) cancel out leaving

L =   (x + 4)

7 0
3 years ago
Edward is playing a game where he draws cards with integers on them from a deck of cards. If the integer is positive he moves fo
Murljashka [212]
B) 4 steps in front of where he started.
4 0
3 years ago
6th grade math help me pleaseeee
Anastasy [175]

Answer:

10 z

Step-by-step explanation:

Hope this helped :)

8 0
3 years ago
What is the value of x in the figure? <br><br><br> x= ?
Otrada [13]
X = 68

Since the angle opposite of it is a right angle, we know that 22 + x has to equal 90 also. 

So just take 90 - 22 = 68 degrees
6 0
3 years ago
Read 2 more answers
Find the length of the side of the square.
nignag [31]

6x-1=4x+6

subtracting  4x from each side

2x-1=6

adding 1 to each side

2x=7

divide by 2

x=7/2 or 3.5


check:  6(7/2) -1 =4(7/2)+6

           21-1 =14+6

20=20  correct

6 0
3 years ago
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