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creativ13 [48]
3 years ago
8

Find the equation that has 2, 1, and -1 as roots

Mathematics
1 answer:
tamaranim1 [39]3 years ago
6 0

Answer: (x-2)(x-1)(x+1)

Step-by-step explanation: Roots are where the graph hits the x-axis. So just like if you had the equation (example) x^2 + 4x + 4 and you were to factor it out to get (x+2)(x+2) you could then set x+2=0 to get the root x=-2. Think of your problem like as if someone has already done the factoring for you. Now all you have to remember is that the answer will have the opposite sign with in the parentheses because its like you’re adding or subtracting it to the x to get zero on other side of the equal sign... x=3 ——> x-3 = 0

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10-11 PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!
AnnZ [28]
10-11= -1 You could also input this number on a calculator
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3 years ago
How many terms are in the expression? 2x + 4y - 3 A) -3 B) 2 C) 3 D) 4
iragen [17]

Answer:

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8 divided by 2/3 in a word problem
sattari [20]

Answer:

12

Step-by-step explanation:

8/1 ÷ 2/3

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7 0
2 years ago
12
Tatiana [17]

Answer:

it 5.5⋅10−^8m

Step-by-step explanation:

Unless I'm missing something important here, you can find the difference between the two wavelengths by subtracting one from the other. Since you're interested in finding how much longer the wavelength associated with the orange light is, subtract the wavelength of the green light from the wavelength of the orange light. You know that the two measured wavelengths are 6.15 ⋅ 10 − 7 m → orange light 5.6 ⋅ 10 − 7 m → green light Therefore, the difference between the two wavelengths will be Δ wavelength = 6.15 ⋅ 10 − 7 m − 5.6 ⋅ 10 − 7 m = 5.5 ⋅ 10 − 8 m

3 0
3 years ago
The sum of three numbers is 51 . the second number is 2 times the third. the third number is 9 more than the first. what are the
hammer [34]
X+y+z=51

y=2z
z=9+x

subsitute those

x+2z+9+x=51
x+2(9+x)+9+x=51
x+18+2x+9+x=51
4x+27=51
minus 27 both sides
4x=24
divide by 4
x=6

sub back

z=9+x
z=9+6
z=15

y=2z
y=2(15)
y=30

the numbers are
6,30,15
8 0
3 years ago
Read 2 more answers
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