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4 years ago

11

A 2-inch-wide frame is to be built around the regular decagonal window. At what angles a and b should the corners of each piece

be cut?

1 answer:

Lady bird [3.3K]4 years ago

4 0

External angles add up to 360
so each external angle = 360/10 = 36 degrees
internal angle = 180 - 36 = 144 degrees

answer is 144 degrees

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Janet earns 7.55 per hour mowing lawns. Kelsey earns twice that amount per hour babysitting and ty earns 1.25 less per hour than

Artemon [7]

Janet = 7.55 x 15(hours) = 113.25
Kelsey = 15.10 x 15(hours) = 226.50
Ty = 13.85 x 15(hours) = 207.76

To gets Kelsey’s wage per hour you do 7.55 x 2 and to get ty you do 15.10(Kelsey’s wage per hour) - 1.25 which is 207.76

8 0

4 years ago

Simplify this question please im really confused

Gemiola [76]

Answer:

option A

Step-by-step explanation:

$\frac{x^a}{x^b} = x^{a-b}$ , $z^0 = 1$

So,

$\frac{18x^5 y}{6xy^8z^0} = \frac{18}{6} \times x^{5 -1} \times y^{1-8} = 3 x^4 \times y^{-7} = \frac{3x^4}{y^7}$

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3 years ago

You have a box with wooden and mechanical pencils. The probability of drawing a wooden pencil is 3/5. If there are 25 pencils in

soldier1979 [14.2K]

Answer:

15

Step-by-step explanation:

3/5 = wooden

2/5 = mechanical

8 0

4 years ago

Read 2 more answers

SOMEONE HELP<br> Find sinD, sinE, cosD, and cosE. Write each answer as a fraction in simplest form.

Wewaii [24]

Answer:

Step-by-step explanation:

sinD = opposite/hypotenuse = 12/15 = 4/5

cosD = adjacent/ hypotenuse = 9/15 = 3/5

sinE = opposite/hypotenuse = 9/15 = 3/5

cosE = adjacent/ hypotenuse = 12/15 = 4/5

4 0

3 years ago

Let “a” represent Andrew’s age TODAY. Write an expression to represent the situation. Five years less than four times Andrew’s a

EleoNora [17]

Answer:

$y = 4a - 5$

Step-by-step explanation:

Let y represent the given situation.

Given:

Andrew's age = a

We need to find the expression for given abatement.

Solution:

The given statement: Five years less than four times Andrew’s age

Five years less than four times Andrew’s age = $4\times (Andrew's\ age) - 5$

Andrew's age is known, so we substitute Andrew's age = a

$y = 4\times (a) - 5$

$y = 4a - 5$

Therefore, the expression for the given situation $y = 4a - 5$

6 0

3 years ago