Answer:
(x, y) ⇒ (-x√3/2 +y/2, -x/2 -y√3/2)
Step-by-step explanation:
The rule for CCW rotation through an angle α is ...
(x, y) ⇒ (x·cos(α) -y·sin(α), x·sin(α) +y·cos(α))
So, for α = 210°, the rule becomes ...
(x, y) ⇒ (-x√3/2 +y/2, -x/2 -y√3/2)
Answer:
Error: 1 −4.5 + 4.2 + 5.6 + (−7.3) Additive inverse
Step-by-step explanation:
Correction: no need to subtract from one
I'll solve problem 3 (I think it's what you're asking)
All the ones you answered on problem 3 are correct.
I'll solve the rest
c) KM = 26
The diagonals of a rectangle are congruent.
If the measure of one diagonal is 26 (which is 13 + 13), the other one is 26.
d) m∠KLM = 90
It's a rectangle! It's supposed to have 4 corners with right angles.
∠KLM is a corner of the rectangle
f) m∠LJM = 22
Subtract 68 from 90 since you know ∠LJK = 68
90 - 68 = 22
Question 1, 2, and 4 is a bit hard to see.
Have an awesome day! :)
Replace the x in the expression by 0 and work it out:-
y-intercept = 2 (0)^2 - 7(0) + 9 = 9
Answer is option (4).
Step-by-step explanation:
g(5)=3(5)-11
=15-11
=4
f(g(5))=2(4)²+4(4)+10
=2(16)+16+10
=32+26
=58
