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3 years ago

Answer: If one out of 12 students at a school share a locker,how many share a locker in a school of 456 students

Mathematics

2 answers:

evablogger [386]3 years ago

4 0

456/12=38
1*38=38
So 38 share a locker in a school of 456

timurjin [86]3 years ago

3 0

Divide 456 by 12. 456 divided by 12 is 38.

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Fittoniya [83]

Answer:

$(a)\ -16t^2 + 7t + 63=0$

$(b)\ t = 2.215$

Step-by-step explanation:

Given

$h(t) = -16t^2 + 7t + 63$

Solving (a): Equation when it hits the ground.

This means that $h(t) = 0$

So, we have:

$h(t) = -16t^2 + 7t + 63$

$-16t^2 + 7t + 63=0$

Solving (b): The value of t in (a)

$-16t^2 + 7t + 63=0$

Using quadratic formula, we have:

$t = \frac{-b \± \sqrt{b^2 - 4ac}}{2a}$

This gives:

$t = \frac{-7 \± \sqrt{7^2 - 4*-16*63}}{2*-16}$

$t = \frac{-7 \± \sqrt{49+ 4032}}{2*-16}$

$t = \frac{-7 \± \sqrt{4081}}{-32}$

$t = \frac{-7 \± 63.88}{-32}$

Split

$t = \frac{-7 + 63.88}{-32}; or\ t = \frac{-7 - 63.88}{-32}$

$t = \frac{56.88}{-32}; or\ t = \frac{-70.88}{-32}$

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3 years ago

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adelina 88 [10]

Answer:

Step-by-step explanation:

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givi [52]

Answer:

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Step-by-step explanation:

here's the solution :-

=》

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$\frac{10}{5}$

=》

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exis [7]

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4 years ago

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Troyanec [42]

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