The answer to your problem is 48.09
You probably have done something like this and are confused by the directions.
Step One
Write down the equation and the givens.
P = 425
x is what you are trying to isolate.
P = 25x - (10x + 250)
Step Two
Remove the brackets on the right.
P = 25x - 10x - 250 Notice all those minus signs. The one on the outside of the brackets gets distributed just as thought there was a (say) - 5
Step Three
Collect the like terms on the right.
P = 15x - 250
Step Four
This really doesn't require a separate step, but I should have done it at the beginning. Put in P = 425
425 = 15x - 250
Step 5
Add 250 to both sides.
425 + 250 = 15x
675 = 15x
Step Six
divide by 15
675 / 15 = x
45 = x
He has to sell 45 calculators.
<h3>
Answer: 920</h3>
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Explanation:
The front face is a triangle with area of base*height/2 = 15*8/2 = 60 square feet.
The back face is identical to the front face, so we have another 60 square feet.
The left rectangular wall is 20 ft by 8 ft tall. Its area is 20*8 = 160 ft^2
The right slanted rectangular face is 20 ft by 17 ft. Its area is 20*17 = 340 ft^2
Lastly, the bottom rectangle floor is 15 ft by 20 ft to give an area of 15*20 = 300 ft^2
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To summarize so far
- Front face = 60 ft^2
- Back face = 60 ft^2
- Left face = 160 ft^2
- Right slanted face = 340 ft^2
- Bottom floor = 300 ft^2
Add up those areas to get the overall surface area.
60+60+160+340+300 = 920
The properties that apply true are:
1–as it implies the Pythagorean theorem; a^2+b^2=c^2
3–as it implies the basic rules of visualized geometry.
4–as the greater side(hypotenuse) is opposite the right angle.
NOT 2, as the accrue angles ARE complimentary.
Answer:
Step-by-step explanation:
The given expression is 
We multiply within the parenthesis to get:
Recall that: ![a^{\frac{m}{n} } =\sqrt[n]{x^m}](https://tex.z-dn.net/?f=a%5E%7B%5Cfrac%7Bm%7D%7Bn%7D%20%7D%20%3D%5Csqrt%5Bn%5D%7Bx%5Em%7D)
We apply this property to get:
This simplifies to
We can simplify further
We rewrite as rational exponent 
