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Goryan [66]
2 years ago
9

Please help!!!!!!!!!! hurrrrrryyyyyyy!!!!!!!!!!!

Mathematics
2 answers:
yawa3891 [41]2 years ago
6 0

Answer:

Step-by-step explanation:

The measure of the inscribed angle is half the measure of intercepted angle.

∠ABC  = \dfrac{1}{2} * 120\\

            = 60°

             

Maksim231197 [3]2 years ago
5 0

Answer:

∠ ABC = 60°

Step-by-step explanation:

the measure of an inscribed angle is hal the measure of its intercepted arc.

∠ ABC = \frac{1}{2} AC = \frac{1}{2} × 120° = 60°

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Advocard [28]
Take a pic of whole page so I can see instructions
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3 years ago
A log raft is moving downstream at a speed of 3 km/h. To insure that there are no river jams a supervisor travels along the raft
skad [1K]

Answer:

2000 meters

Step-by-step explanation:

When the motorboat is moving downstream, its speed relative to the ground is 18 km/h, so its speed relative to the raft is 15 km/h.

When the motorboat is moving upstream, its speed relative to the ground is 12 km/h, so its speed relative to the raft is again 15 km/h.

Converted to m/min, the relative speed is:

15 km/h × (1000 m/km) × (1 h / 60 min) = 250 m/min

It takes the motorboat 16 minutes to travel to the front of the raft and back.  Since the speed is the same in both directions, the motorboat takes 8 minutes to travel the length of the raft.

So the length of the raft is 250×8 = 2000 meters.

8 0
3 years ago
What is the number of real solutions? : 8x^2-11x=-3
swat32
X=1, and 3/8 it is a mixed number.

4 0
3 years ago
38. The volume of a cylinder is 97 ft3. If the dimensions are doubled, what will be the new volume?
asambeis [7]

Volume is cubed. If the dimensions are doubled, cube the scale factor:

2^3 = 8

The volume will increase by a scale of 8.

The new volume would be 97 x 8 = 776 ft^3

8 0
3 years ago
Find the missing side or angle.
Nina [5.8K]

Answer:

a=4.1

Step-by-step explanation:

The Law of Cosines is given as:

a^2=c^2+b^2-2cb\cos A.

Plugging in given values, we get:

a^2=4^2+2^2-2\cdot 4 \cdot 2\cos 78^{\circ},\\a^2=16+4-16\cos 78^{\circ},\\a^2\approx \sqrt{16.673},\\a\approx \fbox{$4.1$}.

8 0
3 years ago
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