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3 years ago

If ts is a midsegment of por find ts

Mathematics

2 answers:

arsen [322]3 years ago

5 0

Hey there! Do you have a image for this problem so we can help you? :)

ki77a [65]3 years ago

3 0

Answer:

HAHHAHAHAHAHAtn i ddinttt

Step-by-step explanation:

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Two cyclists, Alan and Brian, are racing around oval track of length 450m on the same direction simultaneously from the same poi

skelet666 [1.2K]

Answer:

Alan: 200 m/min

Brian: 150 m/min

Step-by-step explanation:

Given : Two cyclists, Alan and Brian, are racing around oval track of length 450m on the same direction simultaneously from the same point. Alan races around the track in 45 seconds before Brian does and overtakes him every 9 minutes.

To find : What are their rates, in meters per minute?

Solution :

Let n represent the number of laps that Alan completes in 9 minutes.

Then n-1 is the number of laps Brian completes.

45 seconds = 3/4 minutes.

The difference in their lap times in minutes per lap is

$\frac{9}{(n -1)}-\frac{9}{n} =\frac{3}{4}$

Solving the equation we get,

$\frac{9n-9n+9}{n(n -1)} =\frac{3}{4}$

$9\times 4=3\times n(n -1)$

$36=3\times n(n -1)$

$n^2-n-12=0$

$n^2-4n+3n-12=0$

$n(n-4)+3(n-4)=0$

$(n-4)(n+3)=0$

$n=4,-3$

Neglecting n=-3

So, n=4

Then Alan's speed in m/min is

$S=\frac{D}{T}$

$S_a=\frac{4\times 450}{9}$

$S_a=200 m/min$

Brian completes 3 laps in that 9-minute time, so his rate is

$S_b=\frac{3\times 450}{9}$

$S_b=150 m/min$

Therefore, Alan: 200 m/min

Brian: 150 m/min

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3 years ago

A florist sells 3 dozen bunches of flowers for $78. whites the cost per flower?

steposvetlana [31]

3x12= 36 flowers for $78

78/36 = $2.16 per flower

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2 years ago

(Urgent) Worth 15 points 7.3

Stella [2.4K]

Answer: 20790

Step-by-step explanation:

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3 years ago

4. Calculate the surface area of this triangular prism.

attashe74 [19]

Answer:

Surface Area of a Triangular Prism Calculator

In the general surface area is defined as the total area the surface of the object occupies. A triangular prism is a polyhedron that has a triangular base. It has 5 faces and 9 edges. Use our online surface area of a triangular prism calculator to efficiently calculate the total surface area occupied by the triangular based prism. Enter the triangle's sides, base, height, and prism height in the prism calculator to find the SA of the triangular prism.

Step-by-step explanation:

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3 years ago

What is the volume of this square-based pyramid with a base length of 6 feet and a height of 10 feet?

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Answer:

60 or 90

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3 years ago

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