Answer:
Step-by-step explanation:
Q1
Q2
- b) sin = opposite/hypotenuse
Q3
- Cos A = 0.1908
- A = arccos 0.1908
- A = 79° ⇒ Option c)
Q4
- tan A = 16/19
- A = arctan 16/19
- A = 40° ⇒ Option b)
Answer:
5 & 8
Step-by-step explanation:
8 + 5 = 13
8 - 5 = 3
1
a and d are supplementary angles, forming a line or adding to 180 degrees, so
d =180 - 120 = 60 degrees
2
f and h are called vertical angles, which are congruent.
h=70 degrees
3
c and f are supplementary. I think they're called consecutive angles.
f = 180 - c = 70 degrees
4
b and c are supplementary, c and g are congruent so
g = 180 - b = 120 degrees
Answer:
-4
Step-by-step explanation:
In the Whisker-Box plot, the Lower Quartile can be found by the end of the left side of the box. In this case, it is directly above the -4, and so is your answer.
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*See attached picture.
Answer: The answer is (D) Reflection across the line y = -x.
Step-by-step explanation: In figure given in the question, we can see two triangles, ΔABC and ΔA'B'C' where the second triangle is the result of transformation from the first one.
(A) If we rotate ΔABC 180° counterclockwise about the origin, then the image will coincide with ΔA'B'C'. So, this transformation can take place here.
(B) If we reflect ΔABC across the origin, then also the image will coincide with ΔA'B'C' and so this transformation can also take place.
(C) If we rotate ΔABC through 180° clockwise about the origin, the we will see the image will be same as ΔA'B'C'. Hence, this transformation can also take place.
(D) Finally, if we reflect ΔABC across the line y = -x, the the image formed will be different from ΔA'B'C', in fact, it is ΔA'D'E', as shown in the attached figure. So, this transformation can not take place here.
Thus, the correct option is (D).