Ok, so first you know that each number is out of 50, so to find a percentage you double each number: 64,56,42,48. Now find the mean (add all numbers together and divide by the amount of numbers: 64+56+42+48=52.5. This means the average percentage of heads is 52.5. Now you just need to find 52.5% of 1,000. That's 525. So the answer is 525. Your welcome :)
Answer:
$35.10
Step-by-step explanation:
Information about concavity is contained in the second derivative of a function. Given f(x) = ax² + bx + c, we have
f'(x) = 2ax + b
and
f''(x) = 2a
Concavity changes at a function's inflection points, which can occur wherever the second derivative is zero or undefined. In this case, since a ≠ 0, the function's concavity is uniform over its entire domain.
(i) f is concave up when f'' > 0, which occurs when a > 0.
(ii) f is concave down when f'' < 0, and this is the case if a < 0.
In Mathematica, define f by entering
f[x_] := a*x^2 + b*x + c
Then solve for intervals over which the second derivative is positive or negative, respectively, using
Reduce[f''[x] > 0, x]
Reduce[f''[x] < 0, x]
Answer:
k=−4 or k=−10
Step-by-step explanation:
Let's solve your equation step-by-step.
|k+7|=3
Solve Absolute Value.
|k+7|=3
We know either k+7=3ork+7=−3
k+7=3(Possibility 1)
k+7−7=3−7(Subtract 7 from both sides)
k=−4
k+7=−3(Possibility 2)
k+7−7=−3−7(Subtract 7 from both sides)
k=−10
Answer: B. A 34-ounce bottle of apple juice contains 2 1 /2 grams of sugar. The Apple juice has _________grams of sugar per ounce.
Step-by-step explanation:
Is The Correct Answer.
