A
given that y varies directly as x, then the relationship is
y = kx ← k is the constant of variation
To find k use the given condition x = 3 when y = 24
y = kx ⇒ k = =
= 8
y = 8x
An artist uses 18 colors on an art palette to paint a picture. This is 72% of all the colors on the palette. How many colors are
2 answers:
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Hi there! The answer is B. -7 or 7
The angles in a quadrilateral always add up to 360°. Therefore the angle of P is
So the angle of P is 49° and equals x^2. Therefore we get the following equation
Take the square root of both sides
OR
Since the angle must be positive, the value can as well be -7 as 7 (because the square of both of these numbers is 49°). Hence, the answer is B.
The angles in a quadrilateral always add up to 360°. Therefore the angle of P is
So the angle of P is 49° and equals x^2. Therefore we get the following equation
Take the square root of both sides
OR
Since the angle must be positive, the value can as well be -7 as 7 (because the square of both of these numbers is 49°). Hence, the answer is B.
Answer: The center of the circle is 3+7i
Explanation: Let z1 and z1 be the two end points and c be the center to be determined. The center lies half of the difference between z1 and z1, measured from z1:
Try this solution with short explanation; note, the suggested way is not the shortest one; the answers are marked with red colour.
Task no. 2: another solution is 45* (4/5) / (6/4) = 24 min.
