Step-by-step explanation:
3/4 * 24
=>72/4
=> 18
7 * 2 1/7
=> 7×15/7
=> 105/7
=> 15
17 * 1/3 =
=> 17/3
=> 5.666666666
=> 5.7
9 * 4 1/3
=> 9 × 13/3
=> 117/3
=> 39
1/2 * 2 1/4
=> 1/2 × 9/4
=> 9/8
=> 1.125
7 1/2 * 1 1/3
=> 15/2 × 4/3
=> 60/6
=> 10
6 2/3 * 2 1/4
=> 20/3 × 9/4
=> 180/12
=> 15
2 2/3 * 3 1/8
=> 8/3 × 25/8
=> 200/24
=> 8.333333333333333
3/7 * 5 1/4
=> 3/7 × 21/4
=> 63/28
=> 2.25
Expand
f(x)=-x²-8x-12
take derivitive
f'(x)=-2x-8
zero at x=-4
in x<-4, the derivitive is positive so the function is increasing
in x>-4, the derivitive is negative so the function is decreasing
increasing in (-infinity,-4)
decreasing in (-4,infinity)
first option
Answer:
3
Step-by-step explanation:
I'm confused as to what you are asking but if it's multiple choice on what the first line means than the answer is 3
The equation for the path of the ball can be measured using a regression model calculator which produced the quadratic model ;
- y(x) = - 16x² + 36x + 4
- Height at x = 1.7 = 18.89 feets
<u>The table given</u> :
Time, x : __0.5 ___ 1 ____ 1.5 ____ 2
Height, y _ 18 ____22 ___ 24 ____ 12
<u>Using </u><u>technology</u><u> such as a </u><u>quadratic regression</u><u> calculator or </u><u>excel</u> ;
The quadratic regression model obtained is :
<u>The </u><u>height after, 1.7 seconds</u><u>, x = 1.7 can be calculated thus</u> :
Put x = 1.7 in the equation :
- y(1.7) = - 16(1.7)² + 36(1.7) + 4
- y = 18.89 feets
Therefore, the height of the baseball after 1.7 seconds will be 18.89 feets.
Learn more : brainly.com/question/22939512
Y = (-x - 6)/2
2y = -x - 6
x + 2y + 6 = 0