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Sidana [21]
3 years ago
8

What is the surface area of the square pyramid above?

Mathematics
1 answer:
kicyunya [14]3 years ago
8 0

Answer:

B) 65 sq in

Step-by-step explanation:

SA = area of base + 1/2(perimeter of base)(slant height)

= 5² + 1/2(20)(4)

= 25 + 40

You might be interested in
The product of two positive integers plus their sum is 95. The integers are relatively prime, and each is less than 20. What is
creativ13 [48]
Let the fist integer be x, the second is x+20
the product of the numbers is:
x(x+20)
the sum of the numbers is:
x+x+20=2x+20
the sum of the above operations will give us:
2x+20+x^2+20x=95
x^2+22x+20=95
this can be written as quadratic to be:
x^2+22x-75=0
solving the above we get:
x=3 and x=-25
but since the integers should be positive, then x=3
the second number is x+20=3+20=23
hence the numbers are:
3 and 23
3 0
3 years ago
Jim was thinking of a number. Jim adds 20 to it, then doubles it and gets an answer of 99.2. What was the original number?
azamat

Alright, lets get started.

Jim was thinking of a number.

Suppose the number Jim was thinking, is x.

Jim adds 20 to it means number will be = x+20

And Jim doubles it, means 2*(x+20)

Jim gets 99.2 and as per us, he gets 2*(x+20)

So, making them equal

2(x+20)=99.2

2x+40=99.2

Subtracting 40 in both sides

2x+40-40=99.2-40

2x=59.2

x=29.6

It means the original number is 29.6.   :   Answer

Hope it will help :)



6 0
3 years ago
Simplify this expressions 5x -7 + 3x + 10
Cerrena [4.2K]

Answer:

8x + 3

Step-by-step explanation:

=5x+−7+3x+10

=(5x+3x)+(−7+10)

=8x+3

5 0
3 years ago
I need to get to 100 percent please help me this is due tomorrow
Amiraneli [1.4K]
Maybe 120-130
As it’s more than 90 but slightly less than 135
4 0
3 years ago
Read 2 more answers
Help me on this question please
Anika [276]

Answer:

48

Step-by-step explanation:

The formula for finding the area of a rectangle is: l * w = a

So 12*4 = 48.

3 0
3 years ago
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