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pashok25 [27]
3 years ago
9

What is the surface area of the faces of the pyramid?

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
8 0
The area of a triangle is (base*height)/2
Therefore: 12*10=120/2=60. Since there are three triangles then you multiply 60 by three. 60*3=180
Since the triangle in the middle is equilateral the height is 10. (10*10)/2=50
180+50=230
The answer is 230 inches²

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A printer is printing photos. For every 15 photos, the printer takes 3 minutes.
Alex17521 [72]

Answer:

3:15, 5:25, 7:35, 8:40, 10:50

Step-by-step explanation:

When I first tried this I thought it was for every one there was fifteen. I messed up then looked, realized, and changed it. For every 3 there is 15 so 15 ÷ 3 = 5 so when I saw the 5 I multiplied it by five to get 25 then continued throughout. Your first step when doing these problems again is to divide (but make sure you divide the right number) then once you find out that sweet number, multiply is by the time to get the photos, and divide by five on the photos to get the time.

<em>Hope you got this right!</em>  

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3 years ago
Your doctor told you to eat 25 grams of fiber each day. You had 66 grams of fiber for breakfast. What percent of the 25 grams of
oksano4ka [1.4K]
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6 0
3 years ago
Evaluate the expression. 4–4÷2
n200080 [17]

Answer:

2.

Step-by-step explanation:

7 0
3 years ago
What is an equation of a line with a slope -2/3 and a y intercept of -4 ?
Gnesinka [82]
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6 0
3 years ago
Find the set the solves <br> <img src="https://tex.z-dn.net/?f=x%20%2B%20%20%20%5Cfrac%7B2%7D%7Bx%7D%20%20%20%5Cgeq%203" id="Tex
Nady [450]
Hello,
To exist x≠0

if x>0 then
x+2/x>=3==>x²+2>=3x
==>x²-3x+2>=0
==>(x-2)(x-1)>=0 positive out of the roots
==>  (x<=1 or x>=2) and x>0
==>(0<x<=1) or (x>=2)
else
x<0
x+2/x>=3==>x²+2<=3x
==>x²-3x+2<=0 negative betheen the roots
==>(1<=x<=2) and x<0 : no solution
end if

4 0
3 years ago
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