Answer:
121, 64, and 16
Step-by-step explanation:
A perfect square is the product of a rational number multiplied by itself. So 11*11=121, 8*8=64, and 4*4=16
Very easy question.
To find x intercept: Multiply y by 0. You get x=-5.
To find y intercept: Multiply x by 0. You get y=-5.
This question involves reverse percentages
We will call the students x, for the time being.
This means that Latrice did: x* 0.25= 51. Note that I am using the only students that chose summer, this means that there are others who chose other seasons but we arnt given the data. So, rearranging x= 51/0.25. Which equals 204.
Therefore this means that there are a minimum of 204 students in seventh grade. However, we are asked to predict, so we can say there are 204 students in the sevenh grade
Answer:
- (x + 2.4)² + (y + 4.8)² = 45
Step-by-step explanation:
<u>Circle equation:</u>
- (x - h)² + (y - k)² = r², where (h, k) is the center, r - radius
<u>Substitute the values to get the equation:</u>
- (x - (- 2.4))² + (y - (-4.8))² = (√45)²
- (x + 2.4)² + (y + 4.8)² = 45
When x = 0° : sin x = 0, cos x = 1, therefore sin x * cos x = 0.
Also, when x = 90° : sin x = 1, cos x = 0, so sin x * cos x = 0.
For any value between 0° and 90° , the product of sin and cos is less than 1.
We can show it like this:
sin 2 x = 2 sin x cos x ( trigonometric formula )
sin x cos x = 1
sin 2 x / 2 = 1 / * 2 ( we will multiply both sides of an equation by 2 )
sin 2 x = 2 This is impossible because the maximum value for sin of any angle is 1.
Answer: sin x cos x is never equal to 1.
