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lisabon 2012 [21]
2 years ago
6

What is the color spectrum?

Mathematics
1 answer:
snow_lady [41]2 years ago
5 0

Answer:

The color spectrum is what the human sees, as a wavelength of light. Furthermore, the color spectrum includes different colors that we are able to see, for instance red, yellow and orange.

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Find the distance traveled by the tip of the second hand of a clock in one minute if the hand is 6cm long.
gayaneshka [121]
The circumference of a circle with radius 6 inches is 12π inches. 15 minutes is 1/4 of the circle which is 60 minutes Therefore the tip moves 1/4 of 12π = 3π inches In 25 minutes the tip moves (25/60)12π = 5π inches Yes, you can also use the formula s = rθ θ is the angle of rotation. 15 minutes is equivalent to 90 degrees or π/2 radians Therefore s = 6 inches(π/2) = 3π inches 25 minutes is equivalent to 25/60 x 360 degrees = 150 degrees = 5π/6 radians 
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3 years ago
Joe spends $8 on lunch and $6.50 on dry cleaning. He also buys 2 shirts that cost the same amount. Joe spends a total of $52. Wh
erica [24]
Each shirt cost $18.75
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3 years ago
If f(x) = 3x - 4 and g(x) = x2, what is the value of f(3) - g(2)?
posledela
[3(3)-4][2^2]
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The answer is 20.
5 0
3 years ago
On paper, use the completing the square method to solve the equation x^2 + 16x + 2. Can anyone help me with this?
scoray [572]

Answer:

x = -8 ± √62

Step-by-step explanation:

An equation needs an equals sign.  I assume the expression equals zero?

x² + 16x + 2 = 0

To complete the square, start by making the leading coefficient 1 (which it already is).

Next, take half of the b coefficient, square it, and add the result to both sides.

(16/2)² = 8² = 64

x² + 16x + 64 + 2 = 64

Factor the perfect square:

(x + 8)² + 2 = 64

Solve for x:

(x + 8)² = 62

x + 8 = ±√62

x = -8 ± √62

6 0
3 years ago
The diameter of a circle is 6 feet find its area to the nearest 10th
I am Lyosha [343]

Answer:

The area of the circle is 113.0 ft²

Step-by-step explanation:

To solve this problem we need to use the area formula of a circle:

a = area

r = radius = 6ft

π = 3.14

a = π * r²

we replace with the known values

a = π * (6ft)²

a = π * 36ft²

a = 113.04ft²

The area of the circle is 113.04ft²

round to the nearest tenth

a = 113.04ft²  = 113.0 ft²

3 0
2 years ago
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