Find the solution set
x^2 +5x-14=0

Step-by-step explanation:

1. Make 2 parenthesis, extract x and put it in both parenthesis. The first parenthesis will have the sign of the number in the middle +5x, the second parenthesis will have the product of the multiplication of the sign of the second and third number; (+)(-) = -. Then, find 2 numbers that multiplied by each other give the third number as a result and added up or substracted give the result of the number in the middle. Here, 7 times 2 is 14 and +7 -2 = +5

Equal both results to zero.

d. bc = 12 and ef = 16

step-by-step explanation:

we are given that δabc : δdef such that .

also, it is given that

so, from the options, we need that .

a.

b.

c.  

d.

as, we can see that only option d gives the same ratio as i.e. .

hence, the possible lengths are bc = 12 and ef = 16.

the reporter's right

step-by-step explanation:

1/4 = .25 / 25%