answer is 250 which is D Because 250 of 24%=60, so subtract 60 from 250 it will give you 190
Answer:
Noel burns calories faster. Choice D
Step-by-step explanation:
n(x)=250x (noel’s burned calories per hour)
j(x)=100x (joy’s burned calories per hour)
Answer:
(0 , -a²)
Step-by-step explanation:
tangent at x = a and x = -a
y = x² (a , a²) and (-a , a²) must be on the curve and tangent to curve
gradient dy/dx = 2x
slope (m) at x = a is <u>2a</u> and slope (m') at x=-a is<u> -2a</u>
line1: (y - a²) / (x - a) = 2a
y - a² = 2a (x - a) y = 2ax - a² ... (1)
line2: (y - a²) / (x + a) = - 2a y = -2ax- a² ... (2)
(1) - (2): 4ax = 0 a≠0 x = 0
y = - a²
I wish I did it right, or ....
Answer:
the first one is the right answer i had the test