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3 years ago

5

Geometry: I need help!

1 answer:

Alona [7]3 years ago

8 0

Volume of triangular prism = base x height x length / 2
= 8 x 5 x 9 / 2
= 360 / 2
= 180 cubic cm

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A Ferris wheel completes 4 revolutions in 10 minutes. The radius of the Ferris wheel is 40 feet.

masha68 [24]

Answer:

<h2>5.0in/sec</h2>

Step-by-step explanation:

$Circumference = 2\pi r\\\\2 \pi \times 40 ft = 80\pi ft = 253.3274123 ft\\\\= 253.3274123 ft \times 12 \: \frac{inches }{feet} \\\\ = 3015.928947 in\\\\\\10 min = 10 min \times 60 \: sec / min = 600 sec\\\\4 \: revolutions / 10 min = 4 \times 3015.928947\: in / 600 sec \\\\ = 5.0 in/sec$

8 0

3 years ago

it took a ball 4 minutes to roll 251 feet .what is the balls average speed in feet per second .round to the nearest hundredth

Misha Larkins [42]

divide total distance by time:

251 feet / 4 minutes = 62.75 feet per minute.

1 minute = 60 seconds.

62.75 feet / 60 seconds = 1.045 = 1.05 feet per second.

8 0

3 years ago

On the shelves of Maria's bookcase,1/2 of the books are mysteries,1/10 are science fiction, 1/5 are biographies,and the remainin

PolarNik [594]

There are 12 books in her bookcase

7 0

3 years ago

If discriminant (b^2 -4ac>0) how many real solutions

MaRussiya [10]

Answer:

If Discriminant, $b^{2} -4ac >0$

Then it has Two Real Solutions.

Step-by-step explanation:

To Find:

If discriminant (b^2 -4ac>0) how many real solutions

Solution:

Consider a Quadratic Equation in General Form as

$ax^{2} +bx+c=0$

then,

$b^{2} -4ac$ is called as Discriminant.

So,

If Discriminant, $b^{2} -4ac >0$

Then it has Two Real Solutions.

If Discriminant, $b^{2} -4ac < 0$

Then it has Two Imaginary Solutions.

If Discriminant, $b^{2} -4ac=0$

Then it has Two Equal and Real Solutions.

4 0

3 years ago

1/4 divided by 2 = ??

Iteru [2.4K]

Answer:

1/8

Step-by-step explanation:

Hi there!

To divided fractions, you must flip the second fraction and multiply instead.

For example,

1/4 divided by 2 is the same thing as 1/4 x 1/2.

You then multiple straight across to get 1/8.

Really hope this helps!

8 0

3 years ago

Read 2 more answers