Can someone help me and do this for me were doing convert customary units if lenght

Mathematics

2 answers:

Gwar [14]3 years ago

7 0

6) 7920 foot= 1.5 miles
7) 6 yd= 216 inches
8) 26,400= 5 miles
9) 9 ft= 108 inches
10) 22 ft= 7.3333333 yd= 21.9999999 foot

Mamont248 [21]3 years ago

4 0

Well there are 5280 feet in 1 mile and if you multiply that by 2 then that's too many. if you multiply 5280 by 1.5, then you get 7920 so it is equal to 1.5 miles.

There are 36 inches in 1 yard so you multiply 6 by 36 to get 216.

Again there are 5,280 feet in 1 mile. Divide 26,400 by 5,280 and you get 50 miles.

12 inches in 1 foot. Multiply 12 by 9 and get 144.

22 feet equals 7 yards and 1 foot.

51 inches equals 4 feet and 3 inches. (4 feet equals 48 inches)

Btw, 7 yards is greater then 20 feet (7 yards equals 21 feet)

2 miles is more then 3,500 yards. (2 miles equals 2,520 yards)

11.5 feet is less then 4 yards (4 yards equals 12 feet)

72 inches is EQUAL to 2 yards

5.5 yards is more then 192 inches. (5.5 yards equals 198 inches)

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3 years ago

Given: ABCD parallelogram BK ⊥ AD , AB = 6, AK = 3 Find: m∠A, m∠B, m∠C, m∠D

Troyanec [42]

Answer: Angle A = 60°, angle B = 120°, angle C = 60°, angle D = 120°

Step-by-step explanation: Please refer to the attached diagram for further details.

The question has given the parallelogram ABCD as having side AB measuring 6 units, side AK measuring 3 units and line BK has been drawn perpendicular to line AD. This means line AK forms a right angle at the point where it meets line AD. From the information provided and the figure derived from that, we have right angled triangle ABK with the right angle at point K, line AB equals 6 units and line AK equals 3 units.

Using angle A as the reference angle, line AK is the opposite (side facing the reference angle), line AB is the hypotenuse (line facing the right angle) and line AK is the adjacent (side that lies between the right angle and the reference angle).

Hence, using the trigonometric ratios,

Cos A = adjacent/hypotenuse

Cos A = 3/6

Cos A = 0.5

Checking with the calculator, (that is second function of Cos 0.5)

A = 60

The opposite sides of a parallelogram are equal (that is line AD is parallel to line BC) and therefore opposite angles are equal (that is angle A is equal to angle C).

Similarly, angle B is equal to angle D. However, angles in a quadrilateral equals 360 degrees.

Therefore, angles in parallelogram ABCD is derived as;

A + B + C + D = 360

60 + B + 60 + D = 360

120 + B + D = 360

Subtract 120 from both sides of the equation

B + D = 240

Having known that angle B equals angle D, angles B and D is derived as each half of the value 240

Angle B = 240/2

Angle B = 120

and angle D = 120

Therefore, the angles are;