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zhannawk [14.2K]
3 years ago
7

What is the sum of 8.4*10^8 and 4.2*10^7 written in scientific notation?

Mathematics
1 answer:
anyanavicka [17]3 years ago
5 0
(8.4*10^8) + (4.2*10^7)

= 882,000,000
= 8.82*10^8

Hope it helped :)
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Team A and Team B are competing against each other in a game of tug-of-war. Team A, consisting of 3 males and 3 females, decides
saul85 [17]

Answer:  Team A will choose one of 36 possible lineups.

Step-by-step explanation:  Given that Team A and Team B are playing the game of tug-of-war.

Team A has 3 males and 3 females that decides to line up  male, female, male, female, male, female.

We are to find the number of possible lineups that Team A can make.

According to the given information,

number of options for the first position = 3,

number of options for the second position = 3,

number of options for the third position = 2,

number of options for the fourth position = 2,

number of options for the fifth position = 1

and

number of options for the sixth position = 1.

Therefore, the number of possible lineups by Team A is

n=3\times3\times2\times2\times1\times1=36.

Thus, Team A will choose one of 36 possible lineups.

4 0
3 years ago
If a circular property has a diameter of 50' and costs $120 per square foot, what is the cost of the property?
dusya [7]
Find area
area=pir^2
d/2=r=50/2=25

A=pi25^2
a=pi625
aprox pi=3.141592
a=1963.495
that is how many square feet
multiply that by 120
1963.495 times 120=$235,619.4
5 0
3 years ago
Javier had $1.30. He wants to split the money between himself and nine friends. Which equation shows how he could divide the mon
Reil [10]
B because it u and 9 friends each want the same amount from splitting 1.30 which gives you .13
3 0
3 years ago
Read 2 more answers
If f(x) = 3 – x2, find f(-2).
Rufina [12.5K]

Answer:

f(- 2) = - 1

Step-by-step explanation:

To evaluate f(- 2) substitute x = - 2 into f(x) , that is

f(- 2) = 3 - (- 2)² = 3 - 4 = - 1

4 0
3 years ago
How do you multiply a fraction by a whole number
morpeh [17]
Assuming the +'s are actually x's  1/2 of 3 is 1.5 and 1.5 divided by 7 is 1.5/7.(answer is 1.5/7) hopefully I'm right.
4 0
3 years ago
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