All the values with exactly three significant digits are: 0.0807, 1990
Significant digits of a number tell us what the actual meaningful representation of a number is. There are certain rules to figure out which digits in a number are significant such as
- All non-zero digits in any number are significant. Ex: 33.4 has 3 significant digits; 19875 has 5 significant digits.
- All zeros between two non-zero digits are significant. Ex: 103.0078 has 7 significant digits. 700519 has 6 significant digits.
- Leading zeros that is all zeros to the left of the first non-zero digit and all zeros to the right of a decimal point are insignificant. 0.00081 has 2 significant digits; 0.547 has 3 significant digits.
- Zeros to the right of a decimal point are significant if and only if they are not followed by a non-zero digit. Ex; 92.00 and 20.00 both have 4 significant digits.
- After a decimal point, all zeros after the last non-zero digit are significant. Ex: 0.0079800 has 5 significant digits
- Trailing zeros are significant in a whole number with a decimal point shown and insignificant if there is no decimal point shown. Ex: 540. has 3 significant digits while 540 has 2 significant digits.
Thus the numbers with 3 significant digits are: 0.0807, 1990
Problem on significant figures.
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Answer:
B. (0 , 0)
Step-by-step explanation:
Plug in the coordinate into the equation given.
Note that:
x = x
f(x) = y
Also note that in B, x = 0, y = 0
Plug in the corresponding number with the corresponding variable
0 = 5^(0)
Simplify
5^0 = 0
0 = 0 (True)
B. (0 , 0) is your answer
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Answer:
Option (3). 0.25(22 - d) + d = 10.75
Step-by-step explanation:
Total number of coins Giuliana has = 22
Let the number dollar coins Giuliana has = d
Number of quarters with Giuliana = (22 - d)
Value of dollar coins and quarters = $10.75
So the equation will be,
Number of dollars coins × $1 + Number of quarters × $0.25 = $10.75
d + 0.25 × (22 - d) = 10.75
Therefore, to determine the number of dollars with Giuliana equation will be used,
d + 0.25(22 - d) = 10.75
Option (3) will be the answer.
Answer:837
Step-by-step explanation:
Answer:
x = 22.5
Step-by-step explanation:
flat angle (straight line) = 180
right angle = 90
given the picture,
x + 3x = 180-90
4x = 90
4x/4 = 90/4
x = 22.5