3 years ago

What is the surface area

1 answer:

8 0

The outside part or uppermost layer of something (often used when describing its texture, form, or extent).

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The height, h, in meters above the ground, of a projectile at any time, t, in seconds, after the launch is defined by the functi

Ivanshal [37]

The equation $h(t) =-6t^2 + 15t + 2$ sets the parabola. You can find the parabola vertex as:

$t_v= \frac{-b}{2a} =- \frac{15}{2\cdot (-6)} = \frac{15}{12}= \frac{5}{4}=1.25$

then

$h( \frac{5}{4} )=-6\cdot (\frac{5}{4} )^2+15\cdot \frac{5}{4} +2= \frac{91}{8} =11.375$

This means that the maximum height is 11.375 m and a projectilereaches this height at 1.25 seconds.

The projectile initially launched at time t=0, so the initial height is h(0)=2 m

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4 years ago

What is the value of 4b ÷ 3, if b =3

Mice21 [21]

The value is 4 because 4b is also 4 times three which is twelve then you divide 12 by three and get 4

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3 years ago

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Firdavs [7]

Do u have a picture or something I could look at because I don't understand the second part

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3 years ago