2 years ago

Yall add me on rblx .. backup1600

Mathematics

1 answer:

harina [27]2 years ago

3 0

Answer:

anybody reading this should know I hope you have a beautiful day and you are loved

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If a certain cannon is fired from a height of 8.8 meters above the ground, at a certain angle, the height of the cannonball ab

Dennis_Churaev [7]

Answer:

It would take approximately 6.50 second for the cannonball to strike the ground.

Step-by-step explanation:

Consider the provided function.

$h(t)=-4.9t^2+30.5t+8.8$

We need to find the time takes for the cannonball to strike the ground.

Substitute h(t) = 0 in above function.

$-4.9t^2+30.5t+8.8=0$

Multiply both sides by 10.

$-49t^2+305t+88=0$

For a quadratic equation of the form $ax^2+bx+c=0$ the solutions are: $x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

Substitute a = -49, b = 305 and c=88

$t=\frac{-305+\sqrt{305^2-4\left(-49\right)88}}{2\left(-49\right)}=-\frac{-305+\sqrt{110273}}{98}\\t = \frac{-305-\sqrt{305^2-4\left(-49\right)88}}{2\left(-49\right)}= \frac{305+\sqrt{110273}}{98}$

Ignore the negative value of t as time can't be a negative number.

Thus,

$t=\frac{305+\sqrt{110273}}{98}\approx6.50$

Hence, it would take approximately 6.50 second for the cannonball to strike the ground.

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2 years ago

4+3(2r+2s)+3r<br><br> Simplify this expression

Ipatiy [6.2K]

Hello!

First you can distribute the 3

4 + 6r + 6s + 3r

Then you combine like terms

4 + 9r + 6s

The answer is 9r + 6s + 4

Hope this helps!

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2 years ago

A+restaurant+bill+before+tax+is+$15. 50. +if+the+sales+tax+is+8%+and+a+15%+tip+is+added,+what+is+the+total+cost+of+the+meal?

ZanzabumX [31]

Answer:

$19.07

Step-by-step explanation:

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1 year ago

(0, -4), (-4, 6) what the equation y=mx+b<br>

valentinak56 [21]

Y=(2/5)x-4
Or
Y=0.4x-4

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2 years ago

Select the equation of the line that passes through the point (2,6) and is perpendicular to the line x=4

Sladkaya [172]

Answer:

Step-by-step explanation:

dont ask skool questions man

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3 years ago