Answer:
93
Step-by-step explanation:
<u><em>Add all of the numbers and divide them by the number of numbers there are.
</em></u><em>Hope this helped ·ω·</em>
This problem has been solved! See the answer Determine Um (mode ), average U, and Urms for a group of ten automobiles clocked by radar at speeds 38,44,48,50,55,55,57,58 and 60mi/h respectively
Answer:
Step-by-step explanation:
Lets try to simplify each to check which one is incorrect so it will be NOT true
first one is :
distribute the exponent so :

CORRECT
Second one is :
CORRECT because anything raised to exponent 0 is 1 .
Last one is :

so Last is<em> INCORRECT</em>
X=1, Y=-2. Heres your answer. It should be C
Answer:
x = (28 +- root -64) / (8)
Step-by-step explanation:
4x^2 -28x= -53 = 0
x = [-(-28)+- root (-28)^2 - 4 * 4 * 53] / 2 *4
x = (28 +- root 784 - 848) / (8)
x = (28 +- root -64) / (8)