Answer:
y=3
Step-by-step explanation:
perpendicular line to Y-axis passing through any point (m,n) is of the form
y=n
so the answer is
y=3
Answer:
X=-4, y=-8
Step-by-step explanation:
x − 4 = 3x + 4
x - 4 - 3x = 3x - 3x + 4
-2x - 4 = 4
-2x - 4 + 4 = 4 + 4
-2x = 8
-2x/-2 = 8/-2
x = -4
then insert -4 for x then solve the equations.
The answer would be the second choice, B. 12+15=27.
The answer could not be the first choice, as the difference between 15 and 12 cannot be greater than either of the numbers.
The answer could not be the third choice, as the sum of 27 and 12 should not be less then 27.
The answer could not be the fourth choice, for the same reasoning that I used for the third choice being wrong. The sum of 27 and 15 cannot be smaller than either number.
The area of the circle is calculated through the equation,
A = πr²
where A is the area and r is the radius. An alternate equation can be used,
A = πD²/4
where D is the diameter.
Substituting the known value to the equation,
A = π(9.1 cm)² / 4
A = 65.03 cm²
The area of the sector, As, is calculated by multiplying the area of the circle by the ratio of the angle to the whole revolution.
As = (65.03 cm²) x (170°/360°)
<em>As = 30.71 cm²</em>
The answer to this question is therefore letter B.
