Answer:
First one
Step-by-step explanation:
Answer:
16. -7x-14
17. -20+5y
18. -8b+8
19. -16c-12
20. 5w+40
21. -12x+6
22. 2z-4
23. -28p-28
24. -9t+54
25. Can't tell what this problem is. The picture cuts out.
26. -27+21p
27. 9k-27
28. -7b+9
29. 30t+12
30. 7v-28
Step-by-step explanation:
Answer: M = 3
Step-by-step explanation:
(5, 4) (7,10)
M = 3
Answer:
see explanation
Step-by-step explanation:
(1)
the sine of an angle = 
(a)
here the opposite is 12 and the hypotenuse is 13
12 is the side opposite ∠DEF ← required angle
(b)
the tangent of an angle = 
here the opposite is 5 and the adjacent is 12
∠DFE ← required angle
(2)
to calculate AB use Pythagoras' identity in the right triangle
AB² = 2² + 3² = 4 + 9 = 13, hence
AB = 
≈ 3.6 ( to nearest tenth )
tanB = 
⇒ B = 33.7°
tanA = 
⇒ A = 56.3°
Answer:
The length of the base of the rectangle is 7 inches
Step-by-step explanation:
The Area of the rectangle can be found out by multiplying length with the breadth
Area= length * breadth
35 squared inches= x *5
5x= 35
x= 35/5
x= 7inches
Hence the length of the base of the rectangle is 7 inches.
If the area and one side are known then we can simply find the 2nd side by simply substituting x in its place and solving the equation.
