Is it right The question
The function f(t) = t2 + 4t − 14 represents a parabola.
Part A: Rewrite the function in vertex form by completing the square. Show your work. (6 points)
Part B: Determine the vertex and indicate whether it is a maximum or a minimum on the graph. How do you know? (2 points)
Part C: Determine the axis of symmetry for f(t). (2 points)
Answers
y + 14 + 4 = ( t2 + 4t +4)
y + 18 = ( t + 2)^2
so the vertex of the parabola is ( -2 , -18)
the axis of symmetry is y = -18
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Ratios equivalent to 15:6?
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Find the equation of the line that passes through (-2,3) and (4,-1).the formula I believe is y-y1 = y2-y1/x2-x1 (x-x1) I'm not quite sure as to how to set that up. do I solve as I go?
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300 miles ... 4.5 hours
x miles = ? ... 1 hour
300 * 1 = 4.5 * x
300 = 4.5 * x
x = 300 / 4.5
x = 200 / 3
x = 66.67 miles per hour
Janet was travelling at the rate 66.67 miles per hour.
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Step-by-step explanation:
A) width × length = area
300 ft × l = 48000 sq ft
B) l = 48000 ÷ 300
l = 160 ft
Answers
There are 20 girls in the play.
What is mean by Ratio?
A ratio indicates how many times one number contain in another number. The ratio of two number is written as x : y, which is equivalent to x/y. Where, x and y are individual amount of two quantities. And, Total quantity gives after combine as x + y.
Given that;
There are 32 students in a play.
And, The ratio of girls to all students on the play is 5 : 8.
Now,
Since, The ratio of girls to all students on the play is 5 : 8.
Hence, Number of girls = 5x
And, Number of students = 8x
Here, Number of all students = 32
So, We get;
⇒ 8x = 32
⇒ x = 4
Thus, Number of girls = 5x
= 5 × 4
= 20
Hence, Number of girls = 20
Learn more about the ratio visit:
#SPJ2
B. a= 15/2 b= 9/2
C. a= 16/3 b= 15/2
D. a= 9/2 b= 13/2
Answers
THE GREATEST VALUE OF LETTERS
Step by step explanation is needed..
Answers
Answer:
Distance between two places=120 km
Step-by-step explanation:
Time= 2 hrs 30 min
=(2*60)min+30min
=120min+30min
=150min=150/60 hr
= 5/2 hr
Speed = distance /time
= (120/5/2)km/hr
=(120×2/5)km/hr
=(240/5)km/hr
= 48 km/hr
New time = 2 hr 30min-30min
= 2hr
Distance =120km
Speed = Distance /time
=120/2 km/hr
= 60 km/hr
Increase in speed=(60-48)km/hr
=12km/hr
Another way to show :
Distance = 120km
speed=Distance/time
=120/2.5=48 km/hr
New speed=120/2=60 Km/hr
change inspeed=60-48=12km/hr
Answers
If the hand moves 1/4 of a complete revolution, divide 360 by 4.
The minute hand moved 90 degrees.