MATHEMATICS HIGH SCHOOL

Find the area of a triangle given that
c=40m
b=20m
a=48°

Answers

Answer 1
Answer: Area= (1)/(2)\cdot c\cdot b\cdot sin \alpha \n\n------------------\n\nA= (1)/(2)\cdot 40\cdot20\cdot sin48^0\approx400\cdot0.7431=297.24\ [m^2]\n\nAns.\ Area\ is\ about\ 297.24\ [m^2]

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If you know the area of a rectangle can you predict its perimeter? Explain

Answers


No.  The area doesn't tell you the dimensions, and you need
the dimensions if you want the perimeter.

If you know the area, you only know the product of the length and width,
but you don't know what either of them is.

In fact, you can draw an infinite number of different rectangles
that all have the same area but different perimeters.

Here.  Look at this.
I tell you that a rectangle's area is 256.  What is its perimeter ?

-- If the rectangle is 16 by 16, then its perimeter is 64 .
-- If the rectangle is 8 by 32, then its perimeter is 80 .
-- If the rectangle is 4 by 64, then its perimeter is 136 .
-- If the rectangle is 2 by 128, then its perimeter is 260 .
-- If the rectangle is 1 by 256, then its perimeter is 514 .
-- If the rectangle is 0.01 by 25,600 then its perimeter is 51,200.02
Because of the correlation of its width and length. In a rectangle length are equal, the same for the width.

During which stage of engine operation does the burning mixture of air and fuel force the piston downward? A. Compression
B. Ignition
C. Power
D. Exhaust

Answers

the answer would be B

Katie went to buy a new tv and finds one for $550.00. In the state of Texas, there is a 6% sales tax on items. How much did Katie pay for the TV including the tax?​

Answers

Answer:

583$

Step-by-step explanation:

6% is equal to 0.06, so you multiply 550 by 0.06.  which equals 33. Then, because it asks for how much Katie played, including the tax and TV, you add 33 to 550.

Bill cleans house windows for $20/houseplus $1/window. If your house has 22
windows; how much will it cost?
y= rate • x + constant

Answers