Answer:
13 units
Step-by-step explanation:
Points A(-1, -6) and B(-1, 7) both lie on the vertical line x=-1. That means the distance between them is the difference of their y-coordinates:
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By -Ay = 7 -(-6) = 13
Segment AB is 13 units long.
the complete question is<span>Point A has an x coordinate of −2 and lies in a circle with a center at (0, 0) and a radius of 5.
To the nearest tenth, what is the y-coordinate for point A?
A: 4.5
B: 4.6
C: 4.7
D: 4.8
see the attached figure
we know that
the equation of the circle is
(x-h)</span>²+(y-k)²=r²
(h,k) is the center---------> (h,k) is the point (0,0)
r=5 units
so
(x-h)²+(y-k)²=r²--------> (x-0)²+(y-0)²=5²------> x²+y²=25
substitute the value of x=-2 in the equation
(-2)²+y²=25------> y²=25-4------> y=(+/-)√21
the y coordinate of point A is positive----> see the picture
therefore
y=√21-----> 4.58-----> y=4.6
the answer isthe y-coordinate for point A is 4.6
It's true. They're connected, have a mutual relationship.
The answer and the process is shown in the following picture
Answer:
a) 87.7
b) g(t) = f(t)/2.2
Step-by-step explanation:
The number of pounds is 2.2 times the number of kilograms, so we have ...
f(t) = 2.2·g(t)
a) On day 37, Chase's weight in kg is ...
f(37) = 2.2g(37)
193 = 2.2g(37)
g(37) = 193/2.2
g(37) ≈ 87.7
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b) Rearranging the equation we started with, we have ...
g(t) = f(t)/2.2