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Sauron [17]
3 years ago
9

How do you do addition and subtraction in Scientific Notatation?

Mathematics
1 answer:
nekit [7.7K]3 years ago
6 0
Once the numbers<span> have the same base and exponents, we can </span>add<span> or </span>subtract their<span> coefficients. </span><span> Determine the </span>number<span> by which to increase the smaller exponent by so it is equal to the bigger exponent.  

I hope this helps!

</span>
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A sample of students is taken from the school’s A honor roll. The school estimates that there are actually 360 students on the A
zlopas [31]

Answer:

Number of 8th Graders = 360 - X  

As you can see this question is not complete and lacks the essential data. But we will try to create a mathematical expression to calculate the number of students on the A honor roll which are from 8th grade.

As we know:

Total number of students on the A honor roll = 360

We are asked to calculate, number of students from 8th grade on the A honor  roll.

So, let's assume that "X" represents all the students who are on the A honor roll except 8th grade.

Mathematical Expression:

Number of 8th Graders = Total number of students on the A honor roll - X

Number of 8th Graders = 360 - X

So, if you know the value of X, you can easily calculate the number of students which are from 8th grade on the A honor roll.

I am not sure if it is wrong I am sorrry.

6 0
3 years ago
a ball is thrown straight up from the top of a tower that is 280 ft high with an initial velocity of 48 ft/s . the height of the
poizon [28]
First find the time that the ball is level with the top of the building on its descent. You can do this by  solving 280 = -16^2 + 48t + 280 for t. This gives t = 3 seconds . 
Then when the ball reaches the ground the  time t is obtained by solving 0 = -16t^2 + 48t + 280  This gives t = 5.94 seconds.
Answer in interval notation is  (3, 5.94].
3 0
3 years ago
Read 2 more answers
74.823 WHAT IS THE PLACE VALUE OF THE 3?
Ipatiy [6.2K]
One thousandths. make sure you add the ths because it is a decimal
4 0
2 years ago
Read 2 more answers
renu is 2 times older than suman. Anita is 9 years older than suman and 6 years younger than renu. jif some of their ages is 69,
SashulF [63]

Answer:

suman is 15 and renu is 30 anita is 24

Step-by-step explanation:

15+30+24+69

3 0
3 years ago
Simplify this expression 3-(7a+1)
Vinil7 [7]
3 - (7a + 1) =
3 - 7a - 1 =
-7a + 2 <===
5 0
3 years ago
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