HELP WILL NAME BRAINEST

Mathematics

2 answers:

Mamont248 [21]3 years ago

5 0

I used trial and error for this one.
tricycles= 3 wheels
bicycles= 2 wheels

t+b=15
tricycles wheels + bicycle wheels = 36
6 tricycles have 3 wheels each = 18
9 bicycles have 2 wheels each = 18
18+18= 36 wheels and 6+9=15 bicycles and tricycles

THEREFORE there are 9 bicycles

kipiarov [429]3 years ago

3 0

9 bicycles and 6 tricycles

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two vertical cliffs are on opposite sides of a 90 foot wide river. From point A at the top of the shorter cliff, the angle of el

Sedbober [7]

Answer: The tall cliff is 118.20 feet tall and the short cliff is 70.32 feet tall.

If you draw a picture with 2 cliffs and a river in the middle, you have find 2 right triangles. In each triangle the adjacent side to our known angle is the river of 90 feet. And the unknown side is the opposite leg.

Therefore, we can set up a tangent equation.

From the top of the short cliff to the top of the tall cliff, we can right and solve the following trig equation:

tan(28) = x /90
x = 47.88

From the top of the short cliff to the bottom, we can right and solve the following trip equation.

tan(38) = x/90
x = 70.32

The 70.32 is also the height of the short cliff. And adding the two answers together will give you the height of the tall cliff.

5 0

3 years ago

Please help im so confused

slava [35]

Answer:

$\text{1. }50^{\circ}\\\text{2. }80^{\circ}$

Step-by-step explanation:

1. The measure of an inscribed angle is always half the measure of the arc it forms. Since angle ACB forms arc AB with a measure of 100 degrees, the measure of angle ACB will be equal to $\frac{100}{2}=\boxed{50^{\circ}}$ .

2. Relating to problem 1, both inscribed angles marked in the figure form the same arc. All inscribed angles forming the same arc will have the same measure. Therefore, the measure of angle GEF is equal to $\boxed{80^{\circ}}$ .