Answer:
y + 7 = 45(x + 2).
Step-by-step explanation:
y - y1 = m(x - x1)
Here m = 45 and (x1, y1) = (-2, -7) so we have:
y - (-7) = 45(x - (-2))
y + 7 = 45(x + 2).
Answer: 450- the answer is already rounded.
A) <span><span>-2x +</span>5y = 18
B) 6x </span><span><span>+4y </span>= -10
Yes, they are simultaneous equations with one solution.
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After simplifying The answer is -8/3
Using the surface area of the sphere, it is found that the radius of the bearing that Helen needs to buy is of 6 millimeters.
<h3>What is the surface area of a sphere?</h3>
The surface area of a sphere of radius r is given by:

In this problem, we have that:

Hence:


r = 6.
The radius of the bearing that Helen needs to buy is of 6 millimeters.
More can be learned about the surface area of a sphere at brainly.com/question/21207980
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