Answer:
D
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
To obtain this form use the method of completing the square.
Given
f(x) = - 0.6x² + 4.2x + 240 ← factor out - 0.6 from the first 2 terms
= - 0.6(x² - 7x) + 240
To complete the square
add/ subtract ( half the coefficient of the x- term)² to x² - 7x
f(x) = - 0.6(x² + 2(- 3.5)x + 12.25 - 12.25 ) + 240
= - 0.6 (x - 3.5)² + 7.35 + 240
= - 0.6(x - 3.5)² + 247.35
with vertex = (3.5, 247.35 )
The maximum value is the y- coordinate of the vertex
Then
f(x) = - 0.6(x - 3.5)² + 247.35 has a maximum value of 247.35
Hello There!
A hypotenuse and an acute angle define congruence:
HA
A hypotenuse and a leg define congruence:
HL
A leg and an acute angle define congruence:
LA
Two legs define congruence
LL
Hope This Helps You!
Good Luck :)
- Hannah ❤
Answer: 17
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
12 × 2 equals 24 and 24 ÷ 3 equals 8
The unit rate is 2 miles per hour
Step-by-step explanation:
The unit rate in this case will be found out by dividing the distance by time.
Given
When there are fraction in the numerator and denominator, the fraction is simplified by multiplying the numerator fraction with reciprocal of the denominator fraction
The unit rate is 2 miles per hour
Keywords: Unit rate
Learn more about unit rate at:
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