Answer:
117
Step-by-step explanation:
=(3)×[19+{15+8-3}]
=3×[19+{23-3}]
=3×[19+20]
=3×39
=117
Answer:
The y-int is 4
Step-by-step explanation:
Answer:
True ; false ; False ; true
Step-by-step explanation:
Equation 1:
7 20 + □ = 19 20
19 / 20 - 7/20
(19 - 7) / 20
12/ 20 = 3/5
Equation 2:
□ + 3 10 = 3 15
3/5 + 3/10
(6 + 3) / 10 = 9/10
Equation 3:
1 2 + 2 3 = □
1/ 2 + 2/3
(3 + 4) / 6
7 / 6
Equation 4:
1 10 + 1 2 = □
1/10 + 1/2
(1 + 5) / 10
6 / 10 = 3/5
<span> 4.3% thats what the intrest rate would be. hope this helped:)</span>
Answer:
Let θ = (45 - A)°.
=> 2Tanθ/ 1 + Tan²θ
=> 2Sinθ/Cosθ / 1 + Sin²θ / Cos²θ
=> 2Sinθ/Cosθ/ Cos²θ + Cos²θ / Cos²θ
=> 2Sinθ/Cosθ/ 1 / Cos²θ
=> 2SinθCos²θ/Cosθ
=> 2SinθCosθ
=> Sin2θ
But we assumed θ = (45 - A)°,
=> Sin2(45 - A)
=> Sin(90 - 2A) (∵ Sin(90 - θ) = Cosθ)
=> Cos2A
= R.H.S
Hence proved.
Step-by-step explanation:
