54 red cars, sorry cant explain, need points urgently, CHEERIO!
Remember that to find the zeroes of a quadratic expression of the form

we could either factor it or use the quadratic formula. When

, like in our case, is often way easier and faster factor the expression than using the quadratic formula. The only thing we need to do to factor the expression is find tow number whose product is 48 and its sum is 14; those numbers are 6 and 8.

and

. Now we can factor our quadratic like follows:

Since we are trying to find the zeroes of the function, we are going to set each one of our factored binomial equal to zero and solve for x:


and


We can conclude that the zeroes of the function

are

and

.
Answer:
Step-by-step explanation:
First we know triangle WXY is an equilateral which means all its angles are 60 degrees.
Next we know triangle WZY is an isosceles so it has 2 angles that are equal to each other.
Since angle Z is an obtuse angle. We can calculate the other angles which we will assume are equal because 138+138 is greater than 180 degrees.
180-138 = 42
42/2 = 21 <-- divide by 2 because we know we're looking for 2 angles
For the angles of WXY.
60-21 = 39
Therefore
Angle I = 60
Angle 2 = 39
Angle 3 = 21
Angle 4 = 39
Angle 5 = 21
The closest squares greater and smaller than 67 are 64 and 81.
64<67<81
√64<√67<√81
8<√67<9
√67 is in between 8 and 9, so A is the answer.
Hope this helps!