2 years ago

Describe two ways in which you can find the perimeter of the Pentagon

Mathematics

1 answer:

MArishka [77]2 years ago

5 0

You can find the perimeter of a pentagon by its vertices or by using an unit circle

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Given that 3x-y : x+2y = 2 : 5, Determine the ratio x:y

N76 [4]

Answer:

x : y = 9 : 13

Step-by-step explanation:

Given that

3x - y : x + 2y = 2 : 5

Express the ratio in fractional form, that is

$\frac{3x-y}{x+2y}$ = $\frac{2}{5}$ ( cross- multiply )

5(3x - y) = 2(x + 2y) ← distribute parenthesis on both sides )

15x - 5y = 2x + 4y ( subtract 2x from both sides )

13x - 5y = 4y ( add 5y to both sides )

13x = 9y ( divide both sides by 13 )

x = $\frac{9}{13}$ y ( divide both sides by y )

$\frac{x}{y}$ = $\frac{9}{13}$ , that is

x : y = 9 : 13

7 0

3 years ago

Kamiko and her 4 sisters each have

kolezko [41]

90 grandchildren

Hope this helps :)

4 0

3 years ago

Estimate the measure of 1.

ivann1987 [24]

Answer:

about 80º give or take

Step-by-step explanation:

it's not quite 90 degrees, and its not 70 degrees or below.

8 0

1 year ago

Read 2 more answers

Explain the process and the properties you have to use to solve the logarithmic equation: log(3)x + log(3)4 - 2 log(3)3 = 2

Akimi4 [234]

81/4

Step-by-step explanation:

$log_{3}( \frac{4x}{{3}^{2} } ) = 2$

${3}^{2} = \frac{4x}{ {3 }^{2} }$

9=4x/9

81=4×

x=81/4

adding logs means elements are multiplied, subtracting means divide. number in front of log is raised to power

base of log is raised to power of element after =

element in log is then equal to log base raised to power

solve resulting equation

6 0

3 years ago

Is this set of ordered pairs a function ? (1,9) (0,8) (3,0) (4,9) (7,7).

AURORKA [14]

Answer:

It is not a function because the output of 9 repeats.

(1,9) (4,9)

3 0

2 years ago