This is true , the product is a rational number
Answer:
positive correlation for y and c
You are given a vector in the XY plane that has a magnitude of 87. 0 units and a y component of -66. 0 units. The direction of the vector V is;
<h3>How to know the direction of a vector?</h3>
We know that the formula for 2 vectors like this in the x and y directions is; A = xi^ + yj^
Where A is the magnitude of the resultant
x is the value of the x-component
y is the value of the y-component
We are given;
Magnitude of vector = 84 units
Y-component of the vector = -67 units
Thus,
From A above, let us take the positive value of the x-component and as such our original vector will be;
A = 56.68i^ - 66j^
The direction of the vector V is;
Since it points entirely to the negative x-axis, then the angle is;
180 - (-27.15) = 207.15°
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Answer:
<h2>D) 25,000</h2>
Step-by-step explanation:
The best estimation of the total number of people at the concert is the quotient between the total area of the arena, and the area that each person occupies.
So, we need to find the area of each person.
We know that each person took up a circular space with a diameter of 0.9m. The radio would be
And the circular are would be
Now, we divide the area of the arena by the area per person
Where represents the number of people at the concert.
Therefore, the nearest estimation is D. 25,000 people are at the concert.
False, because if you do the grouping method, it would be (x+8) (x - 4).