Answer:
Distributive property.
Step-by-step explanation:
The 2 is being distributed to the x and 5
It's the first step due to PEMDAS (Parenthesis first)
Answer:
10 + 5xy = -80
Step-by-step explanation:
10 + 5xy = ?
x = 9 and y = -2
10 + 5xy = 10 + 5(9)(-2)
= 10 - 90
= -80
2) 0.3
3) 0.5
4) 0.6
The length of the opposite side is the same as the length of the hypotenuse (they are the same side in this case), the ratio is:
sin(90 degrees) = 1 / 1 = 1
Thus, sin(90 degrees) equals 1.
In trigonometry, the sine function (abbreviated as sin) is defined based on the angles of a right-angled triangle.
Specifically, for a given angle θ in a right-angled triangle, the sine of θ is defined as the ratio of the length of the side opposite θ to the length of the hypotenuse (the longest side of the triangle, which is always opposite the right angle).
In a standard coordinate system, consider a right-angled triangle where one of the angles is 90 degrees (a right angle).
This angle is often denoted as π/2 radians in radians or 90 degrees in degrees.
In this triangle, the side opposite the angle θ (the side opposite the right angle) is the vertical side, and the hypotenuse is the longest side.
For a right-angled triangle with a 90-degree angle, the sine of θ is defined as:
sin(90 degrees) = length of opposite side / length of hypotenuse
Since the length of the opposite side is the same as the length of the hypotenuse (they are the same side in this case), the ratio is:
sin(90 degrees) = 1 / 1 = 1
Thus, sin(90 degrees) equals 1.
In radians, sin(π/2 radians) is also equal to 1 since it is the same angle as 90 degrees but measured in radians.
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Answer:
It has a minimum.
Step-by-step explanation:
Direction: goes up
Because it goes up, it has a minimum point where the vertex is (-2, 4) and goes up from there.