Answer: Side a equals 19.5 metres
Step-by-step explanation: Consider the right angled triangle as shown in the picture attached. The triangle has been drawn with angle measuring 43 degrees, side c (line AB) measuring 26.7 m and side a (line CB) is yet unknown.
A right angled triangle can be solved if at least one side and an angle are available. In this question we shall apply the trigonometric ratios since we have one angle which shall be the reference angle (43°). Also we have an hypotenuse (the side facing the right angle) and an unknown side which is the adjacent (which lies between the right angle and the reference angle).
Cos B = Adjacent/Hypotenuse
Cos 43 = a/26.7
Cos 43 x 26.7 = a
0.7314 x 26.7 = a
19.52714 = a
a ≈ 19.5 (rounded to the nearest tenth)
Therefore the length of side a equals 19.5 metres.
Y + 9 = 3(x + 9)
Distribute on the the right side.
y + 9 = 3x + 27
Subtract y from both sides.
9 = 3x - y + 27
Subtract 27 from both sides.
-18 = 3x - y
Switch sides.
3x - y = -18
Answer:
JP is congruent to KP
Step-by-step explanation:
The line between JP means that is is congruent to KP. The 2 lines between NM means that is is congruent to JK.
Iwteiwyeoe e to do that and i don’t even exist and i is so much more comfortable than that what do you
Answer:
x^2 - 3x + 9/4 = 5 + 9/4.
Step-by-step explanation:
To find what to add to both sides to make the equation a square, you need to do (b / 2)^2.
In this case, b = -3.
(-3 / 2)^2
= 9 / 4.
x^2 - 3x - 5 = 0
x^2 - 3x = 5
x^2 - 3x + 9/4 = 5 + 9/4.
Hope this helps!