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1 year ago

One of the angles of a regular octagon has a measure of (7x-5) What is the value of x?

Mathematics

2 answers:

Nesterboy [21]1 year ago

6 0

Answer:

Step-by-step explanation:

Regular octagon means that each angle is 135 degrees, so 135 = (7x - 5).

135 = 7x - 5,

135 + 5 = 7x,

140 = 7x,

140 / 7 = x,

20 = x

SIZIF [17.4K]1 year ago

4 0

Answer:

x = 20

Step-by-step explanation:

The interior angles of a regular octagon have measures of ...

180° -360°/8 = 135°

We want that equal to the given expression.

7x -5 = 135

7x = 140 . . . . add 5

x = 20 . . . . . divide by 7

The value of x is 20.

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2 years ago

4. If your company purchases an annuity that will pay $50,000/year for 10 years at a 11% discount rate, what is the value of the

julsineya [31]

Answer:

The value of the annuity is $326,852.3766.

Step-by-step explanation:

Here is the required formula to find the present value of annuity:

We can find the present value of annuity:

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Keywords: discount rate, present value of annuity

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2 years ago

Can you please help me with is.

gtnhenbr [62]

Option a ,254.34

Answer:

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2 years ago

Etta buys some ribbon and cut it into seven pieces that are the same length each piece is 9 inches long how long was the ribbon

zavuch27 [327]

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2 years ago

Read 2 more answers

•given ABCD is a kite, check every box that must be true

natali 33 [55]

Answer:

Step-by-step explanation:

A kite is a quadrilateral made up of two isosceles triangles. A kite does not have any parallel side, but has two pairs of equal adjacent sides. All four sides are not congruent, only two pairs of consecutive sides are congruent.

The vertices of a kite are right angles. The diagonals bisect each other at right angles ( that is they are perpendicular). Therefore the following are true:

1) two pairs of consecutive sides are congruent

2) The diagonals are perpendicular

3) The diagonals bisect each other.

Point A= (3,6), B = (5,0), C= (-2,-4) D = (-3,4)

$AB=\sqrt{(0-6)^2+(5-3)^2}=\sqrt{40} \\AD=\sqrt{(4-2)^2+(-3-3)^2}=\sqrt{40}\\ BC=\sqrt{(-4-0)^2+(-2-5)^2}=\sqrt{65}\\ DC=\sqrt{(4-(-4)^2)+(-3-(-2))^2}=\sqrt{65}$

AB=AD, BC = BC.

This is a kite since two pairs of consecutive sides are congruent

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2 years ago