Answer:
Step-by-step explanation:
we know that
The formula to solve a quadratic equation of the form
is equal to
in this problem we have
so
substitute in the formula
so
Remember that
substitute
Multiply by 12 both sides
squared both sides
therefore
The equation is
The roots are
Answer:
306 dollars is his total income
Step-by-step explanation:
You just have to multiply 2,800 dollars by 0.02 because the commission is 2%. when You multiply both the product is 56. Add 56 to his weekly income of250 and dolars and you get. 306 dollars for this weks total income.
Here we have an arithmetic sequence:
a 1 = 20, d = 2, n = 35
S n = n/2 * ( a 1 + a n )
a 35 = a 1 + 34 d = 20 + 34 * 2 = 20 + 68 = 88
S 35 = 35/2 * ( 20 + 88 ) = 35 / 2 * 108 = 1,890
Answer: In total, the theater seats 1,890 people
The formula for the area of a right triangle = (1/2)(base)(height)
x = the height
Area = (1/2)(10)(x)
= 5x
Now, bring in the "greater than or equal to 8 square feet" part of the problem.
5x ≥ 8
Answer:
If the differences between <u>the group means is large relative to the amount of variability in the scores</u>, the group differences are probably significant. If, however, there is a lot of variability in the scores, then the difference between (or among) the group means will not seem so large, a non-significant difference.
So to summarize, it depends on the group. As there is no shown group, I can't determine what it would be.