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2 years ago

A sample pf a radioactive isotope had an initial mass of 370 mg in the year 2007 and

Mathematics

1 answer:

arlik [135]2 years ago

8 0

Answer:

I need help with this! PLEASE!!! SOMEONE HELP ME!

1.A space shuttle's wings are useless as it travels around the exosphere. Explain, in your own words, why the wings are so useless and how the shuttles can move around.

2.Explain, in your own words, the thermosphere and the stratosphere are our hottest atmosphere layers.

3.Explain, in your own words, how and why “shooting stars” occur. For example, why and what causes meteors to burn up.

4.Explain, in your own words, the importance of our ozone layer in the stratosphere.

5.Explain, in your own words, why weather only occurs in the troposphere.

please use your own words!

Step-by-step explanation:

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Without using a calculator, fill in the blanks with two consecutive integers to complete the following inequality.

Keith_Richards [23]

Answer:

impossible for me

Step-by-step explanation:

5 0

3 years ago

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Natasha can type 30 words a minute. How many words can be typed in 7.5 minutes?

julia-pushkina [17]

225. I think. However its not clear if total words typed are asked for Natasha or in General.

3 0

3 years ago

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I just need the answer no explanation

Eva8 [605]

Applying log rules leaves us with the following equation:

x^2 + 8 = 6x

Change to standard form and solve using factoring.

x^2 - 6x + 8 = 0

(x - 4)(x - 2) = 0

x = 4

x = 2

Hope this helps!

4 0

3 years ago

Tina plans to have two children but doesn't know if they will be boy-boy, girl-girl, or a boy and a girl. What is the probabilit

vazorg [7]

Answer: 25%

Step-by-step explanation:

Boy =50%

Girl =50%

Girl + Girl =25%

3 0

3 years ago

Please Answer!!!!

ExtremeBDS [4]

First mug holds the most

Solution:

Given that,

You are choosing between two mugs

The volume of cylinder is given as:

$V = \pi r^2h$

Where,

r is the radius and h is the height

One has a base that is 5.5 inches in diameter and a height of 3 inches

$radius = \frac{diameter}{2}$

Therefore,

$r = \frac{5.5}{2}\\\\r = 2.75$

Also, h = 3 inches

Thus volume of cylinder is given as:

$V = \pi \times 2.75^2 \times 3\\\\V = 3.14 \times 22.6875\\\\V = 71.23875 \approx 71.24$

Thus first mug holds 71.24 cubic inches

The other has a base of 4.5 inches in diameter and a height of 4 inches

$Radius = \frac{4.5}{2}\\\\r = 2.25$

h = 4 inches

Therefore,

$V = 3.14 \times 2.25^2 \times 4\\\\V = 3.14 \times 20.25\\\\V = 63.585$

Thus the second mug holds 63.585 cubic inches

On comparing, volume of both mugs,

Volume of first mug > volume of second mug

First mug holds the most

8 0

3 years ago