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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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xand y are light house. y being 20km due east of x and from a ship due south of x the bearing of y was 055°. what is the distanc

leonid [27]

Answer:

I) |xz| ≈ 28.6 km

II) |yz| ≈ 34.8 km

Step-by-step explanation:

Let's assume that the position of ship due south of x is z (aà pictor representation of the question is attached)

|xy| = 20 km, |xz| = ?, |yz| = ?, θ(y) = 55°

Using Trigonometric ratio - SOHCAHTOA

I) Tan θ = |xz| ÷ |xy| ⇒ Tan 55° = |xz| ÷ 20

|xz| = 20 * Tan 55 = 20 * 1.428

|xz| = 28.56 km

|xz| ≈ 28.6 km

II) Cos θ = |xy| ÷ |yz| ⇒ Cos 55° = 20 ÷ |yz|

|yz| * Cos 55° = 20 ⇒ |yz| = 20 ÷ Cos 55°

|yz| = 20 ÷ 0.574 = 34.84 km

|yz| ≈ 34.8 km

4 0

3 years ago

Corresponding solution for 3x-3(x+1)=3 plzzz answer quickly

Gekata [30.6K]

$3x - 3(x + 1) = 3 \\ = > - 3(x + 1) = 3 - 3x \\ = > - 3(x + 1) = - 3(1 + x) \\$

Hence,

$x$ is cutting each other in this equation.

So, $x$ can be of any value.i.e.,infinite.

Hope this will help you.

If you like my answer. Please mark it as brainliest And Be my follower if possible.

6 0

3 years ago

the pythagorean theorem states that a^2 + b^2 = c^2 If A and B represent the length of the legs of a right triangle and C repres

klio [65]

Answer:

25 or 50 points is that if 25 or 20 im not

7 0

3 years ago

Read 2 more answers

Cheese sticks that were previously priced at "10 for $1" are now "4 for $1". Find each percent change.

statuscvo [17]

original quantity : 10 for $1

new quantity: 4 for $1

now we have to find each percent change

10-4=6

6÷100=0.06

0.06=6%

the quantity went down 6%

6 0

3 years ago

-0.6 ÷ 3/4 1. 0.8 2. -0.8 3. -0.15 4. 0.15

Delicious77 [7]

You answer is the second one which is -0.8

5 0

3 years ago