The solutions to the given quadratic equation can be determined using quadratic formula.
b =coefficient of x term = -1
a = coefficient of squared term = 4
c = constant term = 9
Using the values in the above formula we get:
So, option D gives the correct answers
Answer:
Reject null hypothesis
Step-by-step explanation:
Because our p-value of 0.04 is less than the level of significance of 0.05, then we reject the null hypothesis that there's no difference between the means and conclude that a significant difference does exist
Answer:
$2.67
Step-by-step explanation:
you divide to find unit rate
8/3 = 2.666667
Answer:
Sophia took a test with 21 questions.
If she answered two sevenths of the questions correctly, number of correct answers she did: N = 21 x 2/7 = 6
=> Number of answers she got wrong: N = 21 - 6 = 15
Hope this helps!
:)
Step-by-step explanation:
Given
f(x) = 1/3x + 13
f^-1(x) = ?
Now
Let y = f(x)
or y = 1/3x + 13
Interchanging the role of x and y
x = 1/3y + 13
x - 13 = 1/3y
y = <u>x </u><u>-</u><u> </u><u>1</u><u>3</u>
3
Therefore f^-1(x) = <u>x </u><u>-</u><u> </u><u>1</u><u>3</u><u> </u>
3
Hope it will help you.
