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3 years ago

Consider the formula P= H *d over M, where

Mathematics

1 answer:

Sophie [7]3 years ago

6 0

Answer:

$\large\boxed{\dfrac{m^3}{kg}}$

Step-by-step explanation:

$P=\dfrac{h\cdot d}{m}\\\\H\to m^2\\d\to m\\m\to kg\\\\P=\dfrac{h\cdot d}{m}\ \bigg(\dfrac{m^2\cdot m}{kg}\bigg)=\dfrac{h\cdot d}{m}\ \bigg(\dfrac{m^3}{kg}\bigg)$

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there are 5 red marbles, 7 green marbles, 4 black marbles, and 8 blue marbles in a bag. find green or black

Flauer [41]

Answer:

11/24

Step-by-step explanation:

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3 years ago

Read 2 more answers

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.

6 0

3 years ago

In Ms Barclay's classroom 2/5 students play chess. 5/6 of the students play Sudoku. If there are 30 students, in her class how m

Nonamiya [84]

Answer:

12 students play chess

and 25 students play Sudoku

Step-by-step explanation:

There are 30 students in Ms Barclay's classroom.

2/5 students play chess.

i.e. $\dfrac{2}{5}\times 30$ play chess

i.e. 12 students play chess

5/6 of the students play Sudoku.

i.e. $\dfrac{5}{6}\times 30$ play Sudoku

i.e. 25 students play Sudoku

Hence, 12 students play chess

and 25 students play Sudoku

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3 years ago

Convert 25 cl 25 ml into liters

notka56 [123]

Answer:

0.25 l = 25cl

0.025l=25 ml

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3 years ago

A builder had been asked to lay an octagonal patio using square paving slabs. To do this, he cuts some of the bricks in half dow

Orlov [11]

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3 years ago