Amanda is adding the numbers below.3.7 x  10^(20) + 4.45 x  10^(20)

What is the sum written in scientific notation?

Answers

Answer 1
Answer: Basically what you do is                             (the ^ arrow meaning exponent)
You take 3.7 + 4.45 x 10^20
Then 8.15 x 10^20, remove the decimal of 8.15 = 815 x 10^-2 x 10^20
815 x 10^18 = 815000000000000000000


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This is all one question show work for everything please I don’t get this !! And for the last one too

Answers

You count each unit square and it counts as one so for number two from point o to point a there are 5 unitsif each side we’re 5 hints and there are 6 sides you multiply five by six to get the answer of 39 for number three

What is 0.0000000345 in scientific notation?

Answers

Since the number is less that 1, the exponent will be a negative.
3.45X10^-8

4(3x+5)+5(3x+3)+3=27x+39

Answers

Answer:

0 (not equal sign)2

NO SOLUTION!

Just distribute and then combine like terms.

Question 11 pts
Maureen worked 48 hours last week. Her hourly rate is $8.00. What was her salary, not
including overtime pay?
• 384.00
230.00
320.00
480.00

Answers

Answer:

$384.00

Step-by-step explanation:

Since $8..0 is 1 hour, just multiply 48 x 8! Hope this helps!

Answer:

320

Step-by-step explanation:

The reason that you  48* 8 is because the 48 has overtime included in it so you would only 40*8.

12b−15>21?? How is this done? Need help ASAP

Answers

12b-15>21
+15 +15

12b > 36
----- ----
12 12

b = 3
12b - 15 > 21

12b > 21 + 15

12b > 36

b > 3

PLS HELP 1. The expression 0.08x+(x−200) models the final price of a computer with an instant rebate in a state that charges a sales tax.

Enter the expression in the box that represents the amount of tax that is paid on the computer.

$


2.The expression 937(1+x) gives the markup price of a computer, where x is the percent of the markup written in decimal form.

Which part of the expression represents the percent, in decimal form, of the initial price that is being paid?

Enter your answer in the box.

Answers

Answer:

#1) 0.08x; #2) (1+x)

Step-by-step explanation:

#1) 0.08 is read as 8 hundredths.  This can also be written as 8/100.  Percent means out of 100; this means 8/100 is 8%.  This means 0.08x is taking 8% of the original amount; this would represent the sales tax that is paid.

#2) In this problem, x is the percent of markup written in decimal form.  This means that adding 1 to this number gives us 100% plus the percent of markup.  This will give us the percentage of the original price that was paid, since we are paying 100% of the original price plus the markup.