Answer: B, C, D
Step-by-step explanation:
6x + 1 - (3x -1)
=> 6x + 1 - 3x + 1
=> 3x + 2
So Answers: B, C, D
Actually, this answer would be true. Why?
The first equation is: a(sub <em>n</em>) = 8, 13, 18, 23
The second is: a(sub 1)=8 ; a(sub <em>n</em>)= a(sub <em>n</em>-1)+5
if you wish to find the second term, plug two into the equation for <em /><em>n</em>
8+5=13
to find the third, plug the second term, 13, in for <em>n.</em>
13+5=18.
Hope this helped! I know it's a bit on the late side, but at least you can get the general idea!
An exponent tells you how many multiples there are of a number.
1a. (0.6)^2 = (0.6)*(0.6) = 3.6
1b. 4^2 = 4*4 = 16
An exponent of 1 is just one of the number, an exponent of zero is always equal to 1.
2a. (0.3)^1 = 0.3
if there's parenthesis, you must multiply all within it by itself.
3a. (1/10)^2 = 1^2/10^2 = 1/100
3b. (2/3)^2 = 2^2/3^2 = 4/9
hope this helps. let me know if you have any other questions.
Answer:
- P(x < 84) = 0.3085 or approximately 31%
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<em>Hello to you from Brainly team!</em>
<h3>Given</h3>
- Mean grade μ = 86,
- Standard deviation σ = 4,
- Grade limit x = 84.
<h3>To find </h3>
- Probability of that a randomly selected grade is less than 84 or P(x < 84).
<h3>Solution</h3>
Find z-score using relevant equation:
Substitute values and calculate:
Using the z-score table find the corresponding P- value.
- P(x < 84) = 0.30854 or approximately 31%