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AlladinOne [14]
3 years ago
8

What is this vertex of the graph ?

Mathematics
1 answer:
mina [271]3 years ago
6 0

Answer:

(2,4)

Step-by-step explanation:

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What’s the answer????
Rudik [331]

Answer:

$0.75

Step-by-step explanation:

28.50-24=$4.50

4.50/6=$0.75

6 0
2 years ago
Suppose a flare is shot from the top of a 120 foot building at a speed of 160 feet per second. The equation h = ?16t + 160t + 12
insens350 [35]

Answer:

The time taken for the flare to hit the ground is approximately 10.7 seconds.

Step-by-step explanation:

Given : Suppose a flare is shot from the top of a 120 foot building at a speed of 160 feet per second. The equation h =- 16t^2+ 160t + 120 models the h height at t seconds of the flare.

To find : How long will it take for the flare to hit the ground?

Solution :

The equation  h =- 16t^2+ 160t + 120 models the h height at t seconds of the flare.

The flare to hit the ground when h=0.

Substitute in the equation,

-16t^2+ 160t + 120=0

Applying quadratic formula, x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

Where, a=-16, b=160 and c=120

x=\frac{-160\pm\sqrt{160^2-4(-16)(120)}}{2(-16)}

x=\frac{-160\pm\sqrt{33280}}{-32}

x=\frac{-160\pm 182.42}{-32}

x=\frac{-160+182.42}{-32},\frac{-160-182.42}{-32}

x=−0.70,10.70

Reject the negative value.

Therefore, the time taken for the flare to hit the ground is approximately 10.7 seconds.

4 0
2 years ago
What happens to the volume of a sphere when its diameter is doubled?
slega [8]

with a scale factor

length becomes scale factor * length

area becomes scale factor^2 * area

volume becomes scale factor ^3 * volume

if the diameter is doubled  the scale factor is 2

Volume becomes 2^3 * volume

the volume increases by a factor of 8

6 0
3 years ago
Read 2 more answers
Flying with a tailwind, a pilot flew an airplane 700 miles in 3.5 hours. flying into a headwind, the return trip took 5 hours. f
Naya [18.7K]
Velocity With the Wind = 700/3.5 = 200 mph
Velocity Against the Wind = 700/5 = 140 mph

Taking the average we get:
Airplane Velocity In Still Air = 170 mph
Wind Velocity = 30 mph

Source:
http://www.1728.org/veloccal.htm




8 0
3 years ago
Read 2 more answers
Select the correct answer.
Assoli18 [71]

Answer:

123

Step-by-step explanation:

3 0
3 years ago
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