Answer:
The value of y is 89.55 at x=15 and 60.69 at x=9.
Step-by-step explanation:
The equation of best fit line is

where, y is scores of two students after x working hours.
We need to find the score after 15 and 9 hours.
Substitute x=15 in the given equation.


Substitute x=9 in the given equation.


Therefore, the value of y is 89.55 at x=15 and 60.69 at x=9.
Hey there!
<h2>
Explanation</h2>
So the first digit of the decimal is called ones. After the decimal, it starts with tenths, then hundredths, and at last thousandths. But you see 6 in the tenths place so now you have your answer.
<h2>
Answer</h2>
Your answer is B. Tenths
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Hope this helps :)○_•
Answer:
The directional bearing of the boat is N 30º E
Step-by-step explanation:
Let
, where
is the vector velocity. Given that such vector is represented in rectangular, a positive value in the first component is the value of the vector in the east direction, whereas a positive value in the second component is in the north direction. The directional bearing of the boat (
), measured in sexagesimal degrees, is determined by trigonometrical means:
(1)
If we know that
and
, then the directional bearing of the boat is:


In consequence, we conclude that the direction bearing of the boat is 30 degrees to the East from the North (N 30º E).
Answer:
This is a Right Triangle
Step-by-step explanation:
12=a 16=b 20=c
Now lets solve
a^2+b^2=c^2
144+b^2=c^2
144+256=c^2
144+256=400
c^2=400
The square root of 400 is 20..
This IS a Right Triangle
D. 14
LL = 1/2 * Hsqrt3
7sqrt3 = 1/2 * ysqrt3
24.25 = ysqrt3
24.25/sqrt3 = y
y = 14