Answer:
He would have to talk 200 minutes.
Step-by-step explanation:
Since 30 divided by .15= 200. And there is a .15 cent cost per minute meaning Javier would have to talk for 200 minutes for the prices to be equal.
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3x+4y=12
4y = - 3x + 12
y = -3/4 x + 3; This line has slope equal - 3/4
Perpendicular lines, slope is opposite and reciprocal so slope of new line = 4/3
Passing point (6 , -2)
y + 2 = 4/3(x - 6)
y + 2 = 4/3 x - 8
y = 4/3 x - 10
Answer
Equation: y = 4/3 x - 10
Based on the calculations, the surface area (SA) of a cylinder is equal to: B. 2,813.44 in.²
<h3>How to calculate surface area of a cylinder?</h3>
Mathematically, the surface area (SA) of a cylinder can be calculated by using this formula:
SA = 2πrh + 2πr²
<u>Where:</u>
The dimensions of this new cylinder would be equal to:
Radius = 8 × 2 = 16 in.
Height = 6 × 2 = 12 in.
Substituting the given parameters into the formula, we have;
SA = (2 × 3.14 × 16 × 12) + 2 × 3.14 × 16²
SA = 1,205.76 + 1,607.68
SA = 2,813.44 square inches.
Read more on surface area here: brainly.com/question/26396269
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<u>Complete Question:</u>
If the dimensions of the following cylinder are doubled, what will be the surface area of the new cylinder? Radius: 8 in and Height: 6 in.
Group of answer choices.
A. 1,406.72 in.²
B. 2,813.44 in.²
C. 1,607.68 in.²
D. 5,626.88 in.²
Answer:
b part is the answer
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