b. 3.423 x 10^-4 - 6.42 x 10^-3 =_________
Perform each of the following computations using the measured quantities below.
Write your final answer with the correct number of significant figures in proper scientific notation (one non-zero number to the left of the decimal point).
a. 917.2 + 45.63 = ___________
b. 3.423 x 10^-4 - 6.42 x 10^-3 =_________
(a) 9.6 x 10²
(b) -6.1 x 10⁻³
(a) 917.2 + 45.63
First add the two numbers as follows (ensure that the decimal numbers are well aligned);
9 1 7 . 2
+ 4 5 . 6 3
9 6 2 . 8 3
To write the result in a proper scientific notation (one non-zero number to the left of the decimal point),
i. Express the number is standard form
962.83 = 9.6283 x 10²
Note that;
From the result in (i)
9.6283 = mantissa
10 = base
² = power or exponent.
ii. Express the mantissa of the number in 1 decimal place.
9.6 x 10²
Therefore, the result in the proper scientific notation is 9.6 x 10².
(b) 3.423 x 10⁻⁴ - 6.42 x 10⁻³
Find the difference between the two numbers as follows;
i. Re-write the numbers so that they both have the same exponents:
0.3423 x 10⁻³ - 6.42 x 10⁻³
ii. Factor out 10⁻³
10⁻³(0.3423 - 6.42)
iii. Solve the bracket
10⁻³(-6.0777)
iv. Rewrite the result in (iii)
-6.0777 x 10⁻³
To write the result in a proper scientific notation (one non-zero number to the left of the decimal point),
i. Express the number is standard form
-6.0777 x 10⁻³ [already in standard form]
Note that;
From the result in (i)
-6.0777 = mantissa
10 = base
⁻³ = power or exponent.
ii. Express the mantissa of the number in 1 decimal place.
-6.1 x 10⁻³
Therefore, the result in the proper scientific notation is -6.1 x 10⁻³.
B. 6 x 6,766 = ________
C. one half x 6,766 = ________
D. 1 x 6,766 = ________
A and C
D and B
A and B
C and D
please help giving brainlyest
A and C are the correct answers.
I hope this helps.
Simplify your answer as much as possible.
After removing the parentheses using the distributiveproperty, the expression simplifies to
We have,
To remove the parentheses using the distributiveproperty, we need to multiply each term inside the parentheses by the term outside the parentheses.
Applying the distributiveproperty to the expression we have:
Multiplying the terms:
Therefore,
After removing the parentheses using the distributiveproperty, the expression simplifies to
Learn more about expressions here:
#SPJ2
Answer:
48
Step-by-step explanation:
3.2 - 3 = .2
3(.2) = .6
9 + .6 = 9.6
5 * 9.6 = 48
If she picks all 3 red markers, she will win a total of $500. If the first marker she picks is red but not all 3 markers
are red, she will win a total of $100. Under any other outcome, she will win $0.
What is the expected value of Jessica's winnings?
Round your answer to the nearest cent.
Answer:
The probability of Jessica picking 3 consecutive red markers is: (1/6)
The probability of Jessica's first marker being red, but not picking 3 consecutive red markers is:
(3/5)−(1/6)=(13/30)
So i am bit stuck here
what i think is it shouldn't be that complex it should be as simple as chance of Jessica's first marker being red=chance of getting red 1 time i.e P(First marker being red)=(6/10) can any explain me the probability of Jessica's first marker being red=(13/30)?
Step-by-step explanation:
Answer:
$126.67
Step-by-step explanation: