Answer:
She needs a grade of 71 on her next text.
Step-by-step explanation:
Mean of a data-set:
The mean of a data-set is the sum of all values in the data-set divided by the number of values.
Tammy has scored 82, 78, and 93 on her previous three tests.
Thus, her grades are 82, 78, 93 and x, in which x is her grade in the fourth test.
There are 4 tests.
What score does she need on her next test so that her average (mean) is 81?
We have to find x when the mean is 81. So




She needs a grade of 71 on her next text.
Answer:
x^3 -9x^2 +14x +24
Step-by-step explanation:
(x-4)(x^2 - 5x - 6)
Multiply the x by everything in the second term
x * (x^2 - 5x - 6)
x^3 -5x^2 -6x
Multiply the -4 by everything in the second term
-4 * (x^2 - 5x - 6)
-4x^2 +20x +24
Add everything together
I like to line them up vertically
x^3 -5x^2 -6x
-4x^2 +20x +24
-------------------------------
x^3 -9x^2 +14x +24
3 9 27 81 243
Its 3 squared, cubed, then to the power of 4 and 5
Answer:
Perimeter = Side1 + Side2 + Side3
4x + 3y = 5x - 3y + x + 4y + Side3
4x + 3y = 6x + y + Side3
-2x + 2y = y + Side3
Step-by-step explanation:
I WISH IT COULD HELP
Answer: Answer is C
Step-by-step explanation:
There is not enough samples.