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otez555 [7]
2 years ago
8

Find the surface area of the pyramid. The side lengths of the base are equal.

Mathematics
1 answer:
Sav [38]2 years ago
3 0
If the side lengths of the base (12) are equal, then they are both 6. so the answer rounded to the nearest tenth is 148.7
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The perimeter of a stop sign has a perimeter of 16x2 - 80x. What is the length of one side?
uranmaximum [27]
Since a stop sign is an octagon it has eight sides.  So the perimeter will be:

p=8x,  p=perimeter and x=side length.  We are told that the perimeter is equal to:

16x^2-80x so we can say:

16x^2-80x=8x subtract 8x from both sides

16x^2-88x=0  factor out 8x

8x(2x-11), since we know x>0

x=11/2

x=5.5 units
7 0
2 years ago
HELP ME PLEASE!!!
zaharov [31]

The correct answer to this question would be answer choice B.

To convert the decimal 0.56 to a fraction, first set it to a fraction over 100 which would be 56/100.

Then, because the question asks for the fraction to be in simplest form, look for the greatest common factor of the numerator and denominator or 56 and 100.

To find it, list out all of their factors:

56: 1, 2, 4, 7, 8 , 14, 28, 56

100: 1, 2, 4, 5, 10,20,25,50,100

Notice that out of all the factors listed, the greatest common factor listed is 4. Because of this, divide both the numerator and denominator by 4 to simplify your fraction to your answer: 14/25

5 0
3 years ago
What is the slope of this equation? <br> 5y = -4 + 3x
BigorU [14]

Answer:

3/5

Step-by-step explanation:

5 0
3 years ago
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What is the value of the expression when d=3. 7d²+10 (answer choice A.63 B.52 C.31 D.73 )
devlian [24]
You have to replace d woth 3 in formula
7d^2+10=7*(3)^2+10=7*9+10=63+10=73
d is the correct answer
6 0
3 years ago
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Expand the polynomial (x2 − y2)2 + (2xy)2, then simplify it by combining like terms.
Vlada [557]
<span><span>2<span>x^2</span></span>+<span><span>4x</span>y</span></span>−<span>2<span>y^<span>2
hope this helps</span></span></span>
8 0
3 years ago
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