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Hatshy [7]
3 years ago
14

Find the sum of the interior angle measures of a pentagon

Mathematics
1 answer:
IrinaVladis [17]3 years ago
5 0

Remember that the formula for the sum of the interior angles within a regular polygon is:

180(n-2), where n is the number of sides that the polygon has


Thus, the sum of the interior angles of a pentagon is 180(5 - 2) = 180(3) = 540^{\circ}.


The answer is 540 degrees.

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(7x)(2xy) how do I rewrite that as a sum
alex41 [277]

Answer:

14x^2y

Step-by-step explanation:

Hope this helps!

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brainliest?

8 0
3 years ago
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the sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find
Allushta [10]

Answer: 1st train = 364 mph, 2nd train = 356.2


Step-by-step explanation:

Train 1: x + 7.8

Train 2: x

Train 1 + Train 2 = Sum

x + 7.8 +     x      = 720.2

           7.8 + 2x = 720.2

                    2x = 712.4

                      x = 356.2


Train 1: x + 7.8

 = 356.2 + 7.8

 = 364

6 0
3 years ago
4) Write the quadratic equation of the following in vertex form: vertex (-1,3) and passes through (1,-5)
Lilit [14]
You will have to set up a system of equations
4 0
3 years ago
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The cost, C dollars, of hiring a taxi is given by the formula C=2.00+3/20n, where n is the number of tenths of a mile driven. Wh
Snezhnost [94]

C(n)=2.00+3.20n

If n = 4 miles:

C(4)=2+3.20(4)

C(4)=2+12.80

C(4)=14.80

The cost of the taxi is $14.80.

4 0
3 years ago
Lakelyn is training for a triathlon she is practising her swiming running and biking skills so far she can swim at a rate of 250
Nezavi [6.7K]

Answer:

The answer to the question is

It would take Lalelyn bout 3 hours to run the 18m miles, and it will take her

\frac{x}{1.7} +\frac{y}{6} +\frac{z}{12} = t and x +y+z =18 where x, y, and z are the distannce covered swimming, running and bikinr respectifully

Step-by-step explanation:

To solve the question, we lisrt out the variables as follows

Swimming speed of Lakelyn = 250 yards every 5 minutes or 250×12 = 3000 yards/hour = 1.7 miles/hr

Running speed of Lakelyn = 6 miles/hour

Biking speed = 12 miles/hour

The duration it will take for Lakelyn to run 18 miles is given by

Timee taken to run 18 miles t = (Distance covered)/ (Speed of Lakelyn))

or t = D/S

Substituting the known values of such as

Running speed of Lakelyn = 6 miles/hour

From which we have the time taken  to run 18 miles = 18 miles /(6 miles/hour) = 3 hours

should the 18 miles form part of the triathlon then, we have

\frac{x}{1.7} +\frac{y}{6} +\frac{z}{12} = t and x +y+z =18

Where x, y and z are the distance covered Swimming, Running and Biking respectively

4 0
3 years ago
Read 2 more answers
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