Answer:
Our score = 0.60, Amanda's score = 0.25
Step-by-step explanation:
For Amanda
μ = 15 , σ = 4
z- score for X = 16 is (From z table)
z = (X - μ)/σ = (16 - 15)/4 = 0.25
For us
μ = 310 , σ = 25
z score for X = 325 (From z table)
z = (325-310)/25 = 0.60
Since our z score is better than Amanda's z score, we can say we did better
We'll need to find the derivative of the given function with respect to x and then evaluate the result at the value pi/2.
<span>y = 8x sin(x) is a product: y = [8x] * [sin x]. We must use the product rule for differentiation:
dy/dx = [8x][cos x] + [sin x][8]
Now substitute pi/2 in the above derivative. We get:
(slope of tangent line) = dy/dx = [8pi/2][cos pi/2] + [sin pi/2][8]
The slope of the tangent line is m = [8pi/2][0] + [1][8] = 8
Thus, the equation of the tangent line is y-4pi = 8[x-pi/2], or
2y-8pi = 8[2x-pi]</span>
Answer:
X= -6
Step-by-step explanation:
Step-by-step explanation:
I'm sorry if my terminology isn't correct because I've learnt it slightly differently, but what I'm assuming is this:
For A, you can rewrite the integers as 28-15+22 as a + and a - next to each other result in a subtraction.
For B, you simply do 15+22 is 37 and 28-37 is -9 due to BIDMAS (or PEDMAS if you're American).
Answer:
answer B
Step-by-step explanation:
I got this answer right on my test