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3 years ago

Calculate the surface are of the rectangular prism to the nearest tenth of a square centimetre

Mathematics

1 answer:

emmasim [6.3K]3 years ago

7 0

Answer:

152.32

https://youtu.be/dQw4w9WgXcQ

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Fractions that are equivent to 4/12

AysviL [449]

Answer:

1/3 2/6

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

How do i figure out these problems ?

Andreyy89

Given two vectors

$v=(a,b),\quad w=(c,d)$

they are parallel if they are a multiple of each other:

$c=ka,\quad d=kb$

You can easily test this by checking if

$\dfrac{c}{a}=\dfrac{d}{b}$

they are orthogonal if their dot product is null:

$v\cdot w=ac+bd=0$

For example, in the first case, we have

$\dfrac{10}{3}\div 2 \neq \dfrac{4}{3}\div 5$

So, they aren't parallel. Similarly, you have

$2\cdot \dfrac{10}{3}+5\cdot \dfrac{4}{3}\neq 0$

So, they aren't orthogonal.

In the second case, we have

$\dfrac{5}{-12}\neq \dfrac{-6}{-10}$

So, they aren't parallel, and

$5(-12)+(-6)(-10)=-60+60=0$

So, they are orthogonal.

Finally, we have

$\dfrac{2}{-4}=\dfrac{-7}{14}=-\dfrac{1}{2}$

So, they are parallel (and thus can't be orthogonal)

7 0

3 years ago

Find the volume of the sphere. Either enter an exact answer in terms of pi or use 3.14 for pi and round your final answer to the

olya-2409 [2.1K]

Step-by-step explanation:

Hello there!

Use the formula for the volume of a sphere:

$v=\frac{4}{3} \pi r^1\\V=\frac{4}{3} \pi9\\\\ V=12\pi =37.699111$

There is your answer!

5 0

4 years ago

Select all of the solutions of 4x2 - 36 = 0. If there are no solutions, select the empty set.

ruslelena [56]

Answer:

Step-by-step explanation:

4x² - 36 = 0 ⇌ (2x)² - 6² = 0 ⇌ (2x - 6)(2x + 6) = 0 ⇌ 2x - 6 = 0 or 2x + 6 = 0

⇌ x = 3 or x = -3

8 0

3 years ago

Which three side lengths could make a triangle?

Tpy6a [65]

Answer:

9cm 5cm 12cm

Step-by-step explanation:

6 0

3 years ago