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Alexxandr [17]
3 years ago
9

Express your answer in scientific notation. 2.2 · 106 – 4.3 · 105 = PLEASE SOMEONE ANSWER

Mathematics
1 answer:
NeX [460]3 years ago
6 0
-2.183 • 10^2

Step by step

2.2•106 - 4.3•105

223.2-451.5

-218.3

(move decimal place 2 to the left - the 2 represents what the power of 10 should be and since the decimal moves to the left, that means that the 2 should be positive)

so your answer is -2.183 • 10^2
You might be interested in
Simplify: (3a – 4b)(a + b). . A.. 3a2– ab – 4b2. . B.. 3a2 – 7ab – 4b2. . C.. 3a2 – 12ab – 4b2. . D.. 3a2 + ab – 4b2.
-Dominant- [34]
To simplify the expression, we distribute terms accordingly. It is done as follows:

<span>(3a – 4b)(a + b)
3a</span>² + 3ab -4ab -4b²
3a² - ab -4b²

Therefore, the correct answer is option A, <span>3a^2– ab – 4b^2. 

Hope this answers the question. Have a nice day. Please feel free to ask more questions.</span>
3 0
3 years ago
-3 1/2x - 4 = -38 1/8<br><br> How do I do this?
abruzzese [7]

Hello, I will try my best to explain this to you as simple as possible.

First, you have to pass the -4 to the other side, like this:

-3 1/2x - 4 = -38 1/8

              ↓

-3 1/2x = -38 1/8 - 4

Then, you have to subtract -4 from -38 1/8, like so:

-3 1/2x =  -38 1/8 - 4

              ↓

-3 1/2x = -42 1/8

My preferred method for this next step is this:

-3 1/2x = -42 1/8

              ↓

-7/2x = 337/8

Then, we divide:

-7/2x = -42 1/8

              ↓

x = (-337/8) / (-7/2)

x = 12.0357142857

So, the answer is: 12.0357142857.

Hope this helped! c:

8 0
3 years ago
NEED THIS ANSWERED BEFORE 11!!!! WILL GIVE BRAINLIEST.
Nat2105 [25]

Answer:

whats the question????????

8 0
3 years ago
Read 2 more answers
PLEASE HELP AND HURRY!!! ILL MARK YOU BRAINLIST PLZZZ HELP!!!!!!!!!
marishachu [46]

Answer:

January has the greater MAD.

Step-by-step explanation:

The MAD of January is 8. You can figure this out by finding the mean of the data (adding them all together then dividing by the number of data points), then finding the distance between each data point and the mean. You then will add all the distances together, then divide by the number of data points. The MAD of July is 2.5. See above for the process.

6 0
3 years ago
Use calculus to find the largest possible area for a rectangular field that can be enclosed with a fence that is 400 meters long
Setler79 [48]

the largest rectangular area is actually a square.

 so the side would be 400/4 = 100 feet

 area of a square is S^2

100^2 = 10,000 square feet

6 0
3 years ago
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