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Svetradugi [14.3K]

3 years ago

10

the speed at which at a certain computer can access the internet is 2 megabytes per second how fast is this in megabytes per hou

r

1 answer:

Zinaida [17]3 years ago

8 0

(2 things/sec) x (3,600 sec/hour) = 7,200 things/hour

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Find the height of a cone with a diameter of 12 m whose volume is 226m Use 3.14 for pi and round your answer to the nearest mete

Sergeu [11.5K]

Answer:

6m

Step-by-step explanation:

h=3(/V πr^2)=3(226/ π·6^2)≈5.99484

round to 6

5 0

3 years ago

Twelve pounds less than twice janes weight is 270 pounds. What is Janes weight?

Tpy6a [65]

Janes weight = x
Twelve pounds less than twice janes weight is 270 pounds
12 less than 2x is 270

2x -12 = 270 (add 12 to each side)
2x = 270 + 12
2x = 282 (divide 2 from each side)
x = 282/2
x = 141

The answer is 141 pounds

7 0

3 years ago

Use Hooke's Law to determine the work done by the variable force in the spring problem. A force of 450 newtons stretches a sprin

vlada-n [284]

Answer:

The work done is 202.50Nm

Step-by-step explanation:

Given

$F =450N$

$x_1 = 30cm$

$x_2 = 60cm$

Required

The work done

First, we calculate the spring constant (k)

$F = kx_1$

$450N = k *30cm$

$k = \frac{450N}{30cm}$

$k =15N/cm$

So:

$F = kx_1$

$F(x) = 15x$

The work done using Hooke's law is:

$W =\int\limits^a_b {F(x)} \, dx$

This gives:

$W =\int\limits^{60}_{30} {15x} \, dx$

Rewrite as:

$W =15\int\limits^{60}_{30} {x} \, dx$

Integrate

$W =15 \frac{x^2}{2}|\limits^{60}_{30}$

This gives:

$W =15 *\frac{60^2 - 30^2}{2}$

$W =15 *\frac{2700}{2}$

$W =15 *1350$

$W =20250N-cm$

Convert to Nm

$W =\frac{20250Nm}{100}$

$W =202.50Nm$

7 0

3 years ago

I WILL GIVE BRAINLIEST!!! PLZ HELP ASAP!!!

seropon [69]

It is A, 60° because 180° (degree of the whole triangle) divided by the three angles is 60.

7 0

3 years ago

Read 2 more answers

What is the value of x when solving the equation -x-1=3x-5

Rzqust [24]

<em>x = 1</em>

<em><u>Here is why:</u></em>

$-x-1=3x-5$

Add x to both sides.

$-1=4x-5$

Add 5 to both sides.

$4=4x$

Divide.

x = 1

5 0

3 years ago

Read 2 more answers