(a) angle TPR = 90° - 30° = 60°
Reason: because the PTR is a right angled triangle.
(b) sin 30° = PR/14
PR = sin 30° × 14 = 7in.
(c) tan 30° = 7/TR
TR = 7/tan30° = 7 / (1/(#3))
= 7#3 in.
# : square root
(d) sin 45° = 7/PQ
PQ = 7/sin 45° = 7 / (1/(#2))
= 7#2 in.
Hope it helped!
The answer is A
We have. x=1, then we substitute that on x+z = 20, to solve for z.
1+z=20
z=20-1
z=19
Then we substitute both values x=1 and z=19 on the other equation.
2x +2y+ z = -12
2*1 + 2y + 19= -12
2y= -12 -19-2
2y= -33
y=-33/2
Answer:
<u>x</u><u> </u><u>is</u><u> </u><u>2</u><u>8</u><u>°</u>
Step-by-step explanation:
Alternate angles of parallel lines:
![{ \sf{x = \frac{1}{2} \times 56 \degree }} \\ { \sf{x = 28 \degree}}](https://tex.z-dn.net/?f=%7B%20%5Csf%7Bx%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20%5Ctimes%2056%20%5Cdegree%20%7D%7D%20%5C%5C%20%7B%20%5Csf%7Bx%20%3D%2028%20%5Cdegree%7D%7D)
Aso the answer is
Step-by-step explanation:
1. No because 89+11 is 100 and complementary equals to 90 degrees
2. no because 2 obtuse angles would make 360 degrees.
3. 79 degrees
4. 15 degrees.
5. sorry don't know
6. x= 150.
b. 75 for the first one and 180 for the second
7. x=8
8. m<C = 121 degrees. because 90-21 is 59. so b is 59 and 180-59 is 121 so that's c
hope that helped!