Answer:
sin(x) = -sqrt2/2
tan(x) = -1
Step-by-step explanation:
Because it is between 270 and 360, sin is negative, so it is -sqrt2/2.
tan(x) is sin(x)/cos(x), so it is just -1.
49.2 is the answer ..............
Answer: y-intercept = (0, -18)
Step-by-step explanation:
This is a quadratic equation question, where the quadratic equation is in the standard form of [y = ax² + bx + c]
The function of [a] in the equation is to determine the maximum/minimum of the parabola. If [a] is positive, then the parabola opens upward, which is a minimum. If [a] is negative, then the parabola opens downward, which is a maximum.
There aren't any particular functions of [b], but it operates with [a] to find the axis of symmetry.
The function of [c] is the y-intercept. The easiest way to prove this is to let x be zero, then we are left with the value [c]
<u>Solve:</u>
Given: y=-x²+8x-18
a = -1
b = 8
c = -18
Therefore, the y-intercept is (0, -18)
Hope this helps!! :)
Please let me know if you have any questions
Answer:
m<QRP=42degrees
m<Q=79degrees
m<P=59degrees
Step-by-step explanation:
Answer:
Step-by-step explanation:
<em>Hey there!</em>
<em />
Well to find SA we need to find the area of the rectangles.
So lets do the top rectangle,
6*6 = <u>36</u>
Now lets do the the left rectangle,
10*6 = <u>60</u>
Now lets do the far right one,
6*4 = <u>24</u>
Now lets do the second highest rectangle,
4*6 = <u>24</u>
Now lets do the rectangle facing the right side,
6*6 = <u>36</u>
Now we can do the bottom rectangle,
6*10 = <u>60</u>
Now lets do the 2 facing front and back,
6*10 = 60
4*4 = 16
60+16 = 76
76*2 = <u>152</u>
Now we can add everything,
152 + 60 + 36 + 24 + 24 + 60 + 36
= 392 in^2
<em>Hope this helps :)</em>
