Answer:
x = - 4, x = - 3
Step-by-step explanation:
To find the zeros equate f(x) to zero, that is
x² + 7x + 12 = 0
To factorise the quadratic
Consider the factors of the constant term (+ 12) which sum to give the coefficient of the x- term (+ 7)
The factors are + 4 and + 3, since
4 × 3 = 12 and 4 + 3 = 7, hence
(x + 4)(x + 3) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 4 = 0 ⇒ x = - 4
x + 3 = 0 ⇒ x = - 3
Answer:
<h2><em><u>
B or the second one</u></em></h2>
Step-by-step explanation:
This is because you have the equation of 2(2/5x + 2).
When you simplify it you have to first do the parenthesis.
So, 2 * 2/5 = 4/5. This is because 2/1 *2/5 is 4/5.
Then you have to do 2*2. This is equal to 4.
Put them together. So it will be.
<h2><u><em>
4/5x + 4.</em></u></h2>
Answer:
1. 37 degrees, 2. 39 degrees, 3. 27 degrees
Step-by-step explanation:
You look at the total angle and subtract it by the angle that is given in the question since the two angles should add up to the whole angle of both. You should look at the number that is outside the angles and subtract it by the angle number inside then you will get the missing angles. The last one it is showing a 90 degree angle which is formed so you subtract 63 from 90.
Answer:
I believe the answer is x= +or- 18/5
What is the square footage? Need a room size to calculate the quantity.