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Aliun [14]
3 years ago
14

|25 POINTS| Suppose you have one pyramid with a base that is 10 meters long and 10 meters wide with a slant that is 15 meters. N

ow, if the length of the base is increased to 15 meters, what is the difference in the surface area between the new pyramid and the old pyramid?
125 meters squared.
525 meters squared.
600 meters squared.
400 meters squared.
Mathematics
1 answer:
laiz [17]3 years ago
3 0

Answer:

125 meters squared

Step-by-step explanation:

Surface area of initial pyramid:

  • A= 10²+4*1/2*10*15= 400 m²

Surface area of extended pyramid:

  • A= 10*15+2*1/2*15*15+2*1/2*10*15= 525 m²

The difference is:

  • 525- 400= 125 m²
You might be interested in
Which of the following numbers is the smallest?<br> 1/3<br> 3/10<br> 2/5<br> 3/8
Zinaida [17]

Answer:

<u>3/10</u>

Step-by-step explanation:

<u>Taking the decimal values</u> (upto the thousandths place)

  • 1/3 = 0.33
  • 3/10 = 0.3
  • 2/5 = 0.4
  • 3/8 = 0.375

Clearly,

  • 0.3 < 0.33 < 0.375 < 0.4
  • 0.3 is the smallest
  • <u>3/10</u> is the smallest
3 0
2 years ago
Can any one answer this
miss Akunina [59]
(the question must tell you that a,b∈R)
a-1=5
b+3=8
a=6
b=5
5 0
2 years ago
Can someone help me on this question too? I tried but I don't think it was right. Thanks
Goshia [24]
3/8 remain you have to reduce the second fraction so they both have the same denominator. then you can add them. 
8 0
3 years ago
Read 2 more answers
15 points guys.
Rudiy27
Hello there.

Question: <span>Jamie has a deck of 60 sports cards, of which some are baseball cards and some are football cards. Jamie pulls out a card randomly from the deck, records its type, and replaces it in the deck. Jamie has already recorded six baseball cards and nine football cards. Based on these data, what is, most likely, the number of baseball cards in the deck?
12
15
24
30

Answer: You could use ratio to figure this out.
6:9 = 15
6 baseball for 9 football cards
Divide the total by the amount already known
60/15 = 4
Multiply all values by 4.
6 x 4 = 24.
9 x 4 = 36.

In short, the answer is 24.

Hope This Helps You!
Good Luck Studying ^-^


</span>
8 0
3 years ago
Read 2 more answers
0.2x-1=-1 what is x in the equation
Alenkinab [10]
I believe the answer is x=0
8 0
3 years ago
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