Answer:
7/25
Step-by-step explanation:
θ lies in quadrant ii
so 2θ lies in quadrant iv
csc θ=5/3
sin θ=3/5 (sin θ=1/csc θ)
[cos(α+β)=cosαcosβ-sinαsinβ]
cos (2θ)=cos(θ+θ)=cos θ cos θ-sin θ sin θ=cos² θ-sin ²θ=1-sin²θ-sin²θ=1-2sin²θ
=1-2 (3/5)²
=1-2(9/25)
=1-18/25
=(25-18)/25
=7/25
Answer: 18+54
Step-by-step explanation:
6*3=18 and 6*9=54
Answer:
Step-by-step explanation:
Defghydrydfm
Answer:
y=-4x+5
Step-by-step explanation:
y+3=-4(x-2)
y+3=-4x+8
-3. -3
y=-4x+5
Answer:
Step-by-step explanation:
1.
Formula for Area of a parallelogram: A = bh
So multiply the base (25cm) by the height (16cm) to get 400cm^2.
2.
Volume formula l x w x h
Multiply the length of the pool (20ft) by the width (15ft) by the height (6ft) to get 1,800ft^2
3.
Formula for Area of a trapezoid A= a+b/2 * h
Where a is (12.6in), b is (15in), and h is (3.4in) just plug in the numbers into the formula to get 46.92in^2
4.
Same thing as number one, use the Area of a parallelogram formula A = bh