Answer:
Options A, C and D
Step-by-step explanation:
Properties of a rhombus,
1). All sides are equal and it has two parallel sides.
2). Opposite angles of a rhombus are equal.
3). Diagonals are perpendicular bisector.
4). Sum of two adjacent angles is 180°.
By using these properties,
Options A, C and D are the correct options.
39x-20x=38
19x=38
x=2
2 hours later, the ferries will be 38 miles apart
8*3-3*x=6
3x=18
x=6
Abe's horse is travelling at the speed of 6 miles per hour.
Answer:
Number = 92
Step-by-step explanation:
Let the unit digit is x and that of tens digit is y.
ATQ,
x+y = 11 ....(1)
The unit's digit is 7 less than the ten's digit
x = y-7 ...(2)
Put the value of x from equation (2) in (1)
y-7+y = 11
2x-7 = 11
2x = 11+7
2x = 18
x = 9
Put the value of x in equation (1)
9+y = 11
y = 2
Hence, the number is 92.
Answer:
The exact value of sin A is opp/hyp = -12/13
Step-by-step explanation:
If A is in Quadrant IV then the "opposite side" is negative and the "adjacent side" is positive. Since sec A = hyp / adj = 13 / 5 and since opp^2 + adj^2 must add up to hyp^2, Therefore y = √(hyp^2 - adj^2), or
y = -√(13^2 - 25) = -√144 = 12.
The exact value of sin A is opp/hyp = -12/13
Answer:
C
Step-by-step explanation:
because density equal all the rest
