Which way do you move the decimal place in scientific notation depending on a positive or negative exponent?
Answers
Final answer:
In scientific notation, the decimal place is moved to the right when the exponent is positive and to the left when the exponent is negative.
Explanation:
The decimal place in scientific notation is moved to the right when the exponent is positive. For example, in the expression 3.6 × 105, the decimal place is moved 5 places to the right to get the number 360,000.
On the other hand, the decimal place is moved to the left when the exponent is negative. In the expression 3.6 × 10-10, the decimal place is moved 10 places to the left, resulting in the number 0.00000000036.
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Related Questions
Suppose v varies directly as g, and v=36 when g=4. Find v when g=11.
Complete the solution of the equation. Find the value of y when x equals -2. -4x+8y=-24
Felipe drinks 4 pints of milk a day. How much is this in cups? Use the table below. Include the correct unit in your answer.
What is 4.06 X 20.1?
Answers
90% percentage of the total deliveries has Lamar completed.
What do percentage means?
- a relative number representing the hundredth part of any quantity One percent (symbolized 1%) is one hundredth part; consequently, 100 percent denotes the complete amount and 200 percent defines twice the supplied amount.
- The most fundamental use of percentages is to compare one number to another, with the second number rebased to 100.
- Percentage simply means "per hundred," and the sign for percentage is%. One percent (or 1%) is one hundredth of a total or whole number and is computed by dividing the whole or entire number by 100.
Total deliveries = 40
completed = 36
percentage of the total deliveries has Lamar completed
= 36/40 * 100 = 90%
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A.
–21.6
B.
–12.4
C.
12.4
D.
21.6
Answers
Answers
If she rides twice the amount of 2 3/10 miles, then she rides 2.3 miles × 2, so that is 4.6 miles, which is 4 6/10 miles, which becomes 4 3/5 miles once simplified. The ending answer is that Marissa rode her bike 4 3/5 miles in all.
Answers
10x15 area
A. 2 km
B. 25 m
C. 2,500 cm
D. 3,000 mm
Answers
25m=25m
2500cm=25m
3000mm=3m
Hence the longest is 2km=2000m
Answers
Answer:
x =-2 and z =-4
Step-by-step explanation:
We need to solve the following systems of equation
-3x-2y+4z = -16 eq(1)
10x+10y-5z = 30 eq(2)
5x+7y+8z = -21 eq(3)
Multiply eq(1) with 10 and eq(2) with 3
-30x-20y+40z = -160
30x+30y-15z = 90
__________________
10y+25z = -70
Divide by 10
2y+5z = -14 eq(4)
Multiply eq(1) with 10 and eq(3) with 6
-30x-20y+40z = -160
30x+42y+48z = -126
__________________
22y+88z = -286
Divide by 11
2y+8z = -26 eq(5)
Subtract eq(4) and eq(5)
2y+5z = -14
2y+8z = -26
- - +
__________
-3z = 12
z = 12/-3
z = -4
Putting value of z in eq(4)
2y+5z = -14
2y +5(-4) = -14
2y = -14 +20
2y = 6
y = 3
Putting value of z and y in eq(1)
-3x-2y+4z = -16
-3x-2(3)+4(-4) = -16
-3x -6 -16 = -16
-3x = -16+16+6
-3x = 6
x = 6/-3
x = -2