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sattari [20]
3 years ago
9

Which values ​​of xwould make a polynomial equal to zero if the factors of the polynomial were (x + 4) and (x + 8)? O A. 4 and -

8 O B. 4and 8 O C. -4 and -8 O D. -4 and 8
Mathematics
1 answer:
tatiyna3 years ago
4 0

Answer:

-4 and -8

Step-by-step explanation:

Set each of the 2 factors = to 0 and solve for x:

x + 4 = 0 ↔ x = -4

x + 8 = 0 ↔ x = -8

The x-values -4 and -8 are the roots (zeros) of a polynomial whose factors are (x + 4) and (x + 8).

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Can someone explain to me how to do this? I just don't get it.
Maksim231197 [3]

Answer:

x=130

Step-by-step explanation:

triangle=180

180-34-96=50

line=180

180-50=130

7 0
2 years ago
Can someone do these!!!????
evablogger [386]

Answer:

8/32=0.25

Step-by-step explanation:

6 0
2 years ago
Randy won 36 out of 54 games of tic tac toe. what percent of the games did he win
Archy [21]
36/54 = x/100

54x = 100 * 36
54x = 3600
x = 3600 ÷ 54
x = 66.666666.... so 66.67

First put it into a proportion and then cross multiply. After that you divide both sides by 54 to get x alone which gives you 66.66666 which is rounded to 66.67

Answer: 66.67%
7 0
3 years ago
Read 2 more answers
You are planning to make an open rectangular box from aa 4141​-in.-by-8181​-in. piece of cardboard by cutting congruent squares
marissa [1.9K]

Answer:

13058.83 cubic inches

Step-by-step explanation:

Given that a rectangular box is having dimensions as 41x81 inches.

Let x be the side of square cut from all the four corners.

The open box made would have height as x and length 41-2x with width 81-2x

Volume =

V(x) = x(41-2x)(81-2x)\\V(x) =x(3321-244x+4x^2)\\V(x) = 3321x-244x^2+4x^3\\V'(x) = 3321-488x+12x^2\\V"(x) = -488+24x\\

Equate first derivative to 0

We get applicable root as x = 8.642

Max volume = 13058.83 cubic inches

3 0
3 years ago
Round each factor to the nearest ten to estimate the product of 34 . 39
aev [14]

Answer:

Round 34 down to 30 then round 39 up to 40

Step-by-step explanation:

34 ⟶ 30 34 is rounded down to 30

39 ⟶ 40 39 rounded up to 40

34 ⟶ 30

39 ⟶ 40

34 is rounded down to 30

39 rounded up to 40

Calculate mentally 34 × 39 =  1326

The estimated product is 1326.

3 0
2 years ago
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