There follows the formula for "z-score:"
raw score - mean
z = ------------------------------
standard dev
9.1 - 8
Here, the z-score is z = ------------- = 0.344
3.2
Answer:
For the 12 sided one it would be 1/12
For the 6 sided one it would be 1/6
Combine those together and it would be <u>3/12</u> which is equal to <u>1/4</u>
Step-by-step explanation:
Answer:
m∠FAD = 56
Explanation:
Due to the error in the system, I put the explanation in the image attached
Answer:
The roots are -2 and -3
Step-by-step explanation:
For a quadratic equation given as x² + bx + c, for roots x and y, the sum of roots is equal to the negation of the coefficient of the second term (i.e x + y = - b) while the products of the roots is equal to the coefficient of the second term (i.e x × y = c).
Since for the roots 1 and 6, only the value of c was correct, to get c we use the product of roots. Therefore, c = 1 × 6 = 6
Since for the roots -1 and -6, only the value of b was correct, to get b we use the sum of roots. Therefore:
-b = - 1 + -4 = -5
b = 5
Since the quadratic equation is x² + bx + c, substituting value of b and c and solving:
x² + 5x + 6 = 0
x² + 2x + 3x + 6 = 0
x(x + 2) + 3(x + 2) = 0
(x + 2)(x + 3) = 0
x = -2 or x = -3
The roots are -2 and -3
Hiya!
16.) If you have 3.2 L, and you need mL, move the decimal to the right. It becomes 3,200 mL. So, the answer is B.).
18.) Your answer is A.). 1,000 m is in one kilometer.
21.) Not sure at all! Ask your teacher, or try looking up what hectometers are. Is that ten meters? If so, the answer is A.), I believe.
Be sure to check all of your answers on this page!