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My name is Ann [436]
3 years ago
7

Bicycles have 2 wheels an tricycles have 3. There are a total of 7 bicycles and tricycle. If there are 17 wheels in all how many

bicycles are there?
Mathematics
1 answer:
Anika [276]3 years ago
5 0
There are 7 bicycles and 1 tricycle
You might be interested in
Can help me find area and perimeter step by step
Vera_Pavlovna [14]

Answer:

  • area: 16.28 ft²
  • perimeter: 17.05 ft

Step-by-step explanation:

The figure is shown as being composed of a semicircle and a triangle. You know the formula for the area of a circle is ...

  A = πr²

The radius of the semicircle is half its diameter, so is (4 ft)/2 = 2 ft. Then the area of a circle with radius 2 feet is ...

  A = π(2 ft)² = 4π ft²

Our semicircle has half that area, so ...

  area of semicircle = (4π ft²)/2 = 2π ft² ≈ 6.283 ft²

__

The area of the triangle is given by the formula ...

  A = (1/2)bh

Here, the base is shown as 4 ft, and the height is shown as 5 ft. Then the triangle area is ...

  triangle area = (1/2)(4 ft)(5 ft) = 10 ft²

So, the total area of the composite figure is ...

  figure area = area of semicircle + triangle area

  = 6.283 ft² + 10 ft² ≈ 16.283 ft² . . . . area of the figure

__

The perimeter of the curved portion of the semicircle is half the circumference of a circle of radius 2 ft. It will be ...

  curved perimeter = (1/2)(2πr) = πr = π(2 ft) = 2π ft ≈ 6.283 ft

The length of each side of the triangle can be found from the Pythagorean theorem. Each side of the triangle is the hypotenuse of a right triangle with legs 2 ft and 5 ft. Then it will be ...

   triangle side length = √(2² +5²) ft = √29 ft ≈ 5.385 ft

The total perimeter is ...

   perimeter = 2 × triangle side length + semicircle length

  = 2×(5.385 ft) + 6.283 ft = 17.054 ft

The perimeter of the figure is about 17.05 feet.

4 0
3 years ago
100 points please HELP asap!!! (05.01)Which statement best describes the area of the triangle shown below?
zhannawk [14.2K]

Option B:

It is one-half the area of a square of side length 4 units.

Solution:

Base of the triangle = 4 units

Height of the triangle = 4 units

Area of the triangle = \frac{1}{2} \times\text{base}\times\text{height}

                                 $=\frac{1}{2}\times{4}\times{4}

Area of the triangle = 8 square units

Option A: It is one-half the area of a rectangle of length 4 units and width 2 units.

Area of the rectangle = 4 × 2 = 8 square units

Half of rectangle = \frac{1}{2}\times8=4 square units

It is not true because area of the triangle is 8 square units.

Option B: It is one-half the area of a square of side length 4 units.

Area of the square = 4 × 4 = 16 square units

Half of square = \frac{1}{2}\times16=8 square units

It is true because area of the triangle is 8 square units.

Option C: It is twice the area of a rectangle of length 4 units and width 2 units.

Area of the rectangle = 4 × 2 = 8 square units

Twice of rectangle = 2 × 8 = 16 square units

It is not true because area of the triangle is 8 square units.

Option D: It is twice the area of a square of side length 4 units.

Area of the square = 4 × 4 = 16 square units

Twice of square = 2 × 16 = 32 square units

It is not true because area of the triangle is 8 square units.

Hence Option B is the correct answer.

It is one-half the area of a square of side length 4 units.

8 0
3 years ago
Four polynomials are shown below:
marishachu [46]
A is a 5th degree polynomial.

6 0
3 years ago
PLZ HELLP ASAP !!!!!!!!!!!!!!!
vovangra [49]

Answer:

Where is the question?

Step-by-step explanation:

4 0
2 years ago
The steps for inscribing a circle in a triangle are shown:Step 1Construct the perpendicular bisector of one angle of the triangl
nevsk [136]

Solution

- The correct steps for drawing a circle in a triangle are given below:

1. Bisect one of the angles

2. Bisect another angle

3. Where they cross is the center of the inscribed circle, called the incenter

4. Construct a perpendicular from the center point to one side of the triangle

5. Place compass on the center point, adjust its length to where the perpendicular crosses the triangle, and draw your inscribed circle!

- Based on these steps above and comparing them with the steps given in the question, every step given in the question is correct except Step 1.

- Step 1 given in the question, says we should construct a perpendicular bisector of one angle in the triangle. This is not correct because of the use of perpendicular bisector. This is only used for bisecting lines, not angles.

Final Answer

The answer is Step 1

6 0
11 months ago
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