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Elis [28]
3 years ago
6

Help ASAP I’ll mark you as brainlister PLEASE!!’

Mathematics
1 answer:
Alex17521 [72]3 years ago
8 0

Answer:

A = 76.8 yd²

Step-by-step explanation:

The area (A) of a regular polygon is calculated as

A = \frac{1}{2} pa ( p is the perimeter and a the apothem )

Here p = 8 × 4 = 32 yd and a = 4.8 yd , then

A = \frac{1}{2} × 32 × 4.8 = 16 × 4.8 = 76.8 yd²

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Can y’all help me on Thai one thank you
vichka [17]

Karmin will make $18.4 for working an hour after the increase.

Step-by-step explanation:

Step 1:

First, we need to determine how much Karmin made an hour.

Karmin's hourly rate = \frac{480}{30} = 16.

So Karmen made $16 every hour that she worked. She worked for 30 hours and earned $480.

She will get a 15% increase in her hourly rate this month.

Step 2:

We need to determine how much 15% of $16 is.

15% of $16 = \frac{15}{100} (16) = 0.15 (16)= 2.4.

So her 15% increase amounts to $2.4.

So the hourly rate for this month 16 + 2.4 = 18.4.

So Karmin will make $18.4 for working 1 hour.

5 0
3 years ago
A rectangle that has an area of 357 square inches is 17 inches wide. Using the formula for area (A=lw), how long is the rectangl
Lynna [10]
----------------------------------------------------------------------------------------
Formula
----------------------------------------------------------------------------------------
Area of rectangle = Length x Width

----------------------------------------------------------------------------------------
Find Length
----------------------------------------------------------------------------------------
357 = Length x 17

----------------------------------------------------------------------------------------
Divide by 17 through
----------------------------------------------------------------------------------------
Length = 357 ÷ 7
Length = 51 inches

----------------------------------------------------------------------------------------
Answer: The length of the rectangle is 51 inches
----------------------------------------------------------------------------------------
7 0
3 years ago
What is an equation of the line that passes through the points (-1, -2) and (2, 4)
olasank [31]

Answer:

y = 2x

Step-by-step explanation:

Formula is y = mx + b

m is slope

slope = (4 - -2) / (2 - -1) = 6 / 3 = 2

Now equation is y = 2x + b

To find b, substitute one of the coordinates in the equation. Let's use (2,4)

y = 2x + b

4 = 2(2) + b

b = 0

So equation is y = 2x

3 0
3 years ago
Kayla has 14.5% of her salary placed into an Individual Retirement Account. What fraction is this?
Monica [59]
1. Convert percent into decimal (it will help)
14.5\% = .145
2. Convert Decimal to fraction
\frac{.145}{1000}

4 0
3 years ago
PLZ HELP DONT UNDERSTAND!!!
victus00 [196]
\bf \textit{area of a triangle}=A=\cfrac{1}{2}bh\qquad 
\begin{cases}
b=base\\
h=\textit{height or altitude}
\end{cases}\\\\
-----------------------------\\\\
\textit{area of a trapezoid}\\\\
A=\cfrac{h}{2}(a+b)\qquad 
\begin{cases}
a=\textit{base, or one of the parallel sides}\\
b=\textit{base, or the other parallel side}\\
h=\textit{height, the distance between both}\\
\qquad \textit{parallel sides}
\end{cases}
7 0
3 years ago
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