Answer:
True
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
Here (h, k) = (- 4, - 9), thus
y = a(x + 4)² - 9
To find a substitute the coordinates of the zero (- 7, 0) into the equation.
0 = a(- 7 + 4)² - 9, that is
0 = 9a - 9 ( add 9 to both sides )
9a = 9 ( divide both sides by 9 )
a = 1, thus
y = (x + 4)² - 9 ← expand factor using FOIL
y = x² + 8x + 16 - 9
y = x² + 8x + 7
Answer:
Step-by-step explanation:
Given
Ladder is 16 ft from bottom and 12 away from the base of the wall
In another case ladder is 18 ft above the ground and let say x ft away from the base of the wall
In both the cases the length of ladder remains the same
Using Pythagoras theorem, we can write
-5x+6
Coefficient is -5 and 6, respectively.
Answer: if you want 3/6 in simplifed form it will be 1/2
Step-by-step explanation: Find the Least common denominator ( LCD). Then add the numerators.
Answer:
The answer is 5.26
Step-by-step explanation:
First divide 15 and 285(15 ➗ 285) then multiply 100 to the quotient, then round your final answer to the nearest tenth.