Solution: We are given:
We know that a usual values of the test scores falls within 2 standard deviation from the mean.
Therefore, the minimum usual test score is:
The maximum usual test score is:
Therefore, the minimum and maximum “usual” values of the test scores are:
65.4 and 90.6
It should be nonlinear, nonlinear, linear
Answer:
Step-by-step explanation:
Area of the rug is given by the trinomial,
r² - 2r - 35
Since, area of the rectangular rug = Length × Width
Now we will convert the given trinomial in the factored form,
r² - 2r - 35 = r² - 7r + 5r - 35
= r(r - 7) + 5(r - 7)
= (r + 5)(r - 7)
Therefore, Dimension of the rectangular rug will be (r + 5) × (r - 7)
Answer:
x = -10
Step-by-step explanation:
3(x+1) +5 = 2x -2
<em>Distribute the 3 to the x+1</em>
3x+3 +5 = 2x -2
<em>Combine like terms</em>
3x + 8 = 2x -2
<em>Subtract 2x from both sides</em>
x + 8 = -2
<em>Subtract 8 from both sides</em>
x = -10
Hope this helps!
7 1/3 - 3 2/3 = 3/23
7 1/3 = 22/3
3 2/3 = 11/3
22/3 - 11/3 = 11/3 = 3 2/3