<h3>
Answer: Choice B. x = 4 and x = 3</h3>
Work Shown:
x^2 - 7x = -12
x^2 - 7x + 12 = 0
(x - 3)(x - 4) = 0 ... see note below
x - 3 = 0 or x - 4 = 0
x = 3 or x = 4
Note: we're looking for two numbers that multiply to 12 and add to -7. Those two numbers are -3 and -4, so that's where the factorization (x-3)(x-4) comes in. After this step, you set each factor equal to zero and solve for x.
The answer is C)22.
If each package has 4, you divide 86 by 4 and get 21.5. You round up since you’ll need 2 out of the 4 bulbs in the last package.
Answer:
1
Step-by-step explanation:
2x^2 + x -1 = 2
2x^2 + x-1-2 = 0
2x^2 + x -3 = 0
2x^2 -2x + 3x-3 = 0
2x(x-1) + 3(x-1) = 0
(2x + 3)(x-1) = 0
2x + 3 = 0
or x-1 = 0
x = -3/2 or 1
Answer:
62
Step-by-step explanation:
The midsegment of a trapezoid is equal to half the sum of the bases.
The midsegment is HL while the bases are JK and GF
So HL = ( JK + GF ) / 2
JK = 12 and HL = 37
to find the length of GF we plug these values in and solve for GF
HL = ( JK + GF ) / 2
plug in JK = 12 and HL = 37
37 = ( 12 + GF ) / 2
multiply both sides by 2
74 = 12 + GF
subtract 12 from both sides
62 = GF
First you would multiply your hours, 9, by how fast the temperature is dropping, -2 ( because it is dropping, your number would be a negative). 9 x -2 = -18.
Next add 17 + -18 to get -1. -1°C is your answer.
