MATHEMATICS MIDDLE SCHOOL

If,
2=5
3=10
4=17
5=??

Answers

Answer 1

Answer: In all the cases, the number is multiplied by itself and added 1 to it. so the answer is 26

Answer 2

Answer:

Answer: 26

There is a pattern. It is squared then added with one.

For visual reference-

2=5 (2*2=4, 4+1=5)

3=10 (3*3=9, 9+1=10)

4=17 (4*4=16, 16+1=17)

5=?? (do the same thing)

5=26 (5*5=25, 25+1=26)

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A cylinder has a radius of 40 ft and a height of 17 ft. What is the exact surface area of the cylinder?

Answers

2 pi r h+2 pi r squared

2 x pi x 40 x 17 = 4272.566009

2 x pi x 40 squared = 10053.09649

so 4272.566009 + 10053.09649 = 14325.6625

Use the distributive property to simplify (100+4z)20

Show your work and show each step.

Answers

$(100+4z)20$ $Expand$

$20*100+20*4z$ $\ Distribute$

$2000+20*4z$

$2000+80z$

Explain how can you use the Associative Property to evaluate (7*50)*4.

Answers

The associative property is defined as follows: (a*b)*c = a*(b*c), that is, ... How can you use the Commutative property to find 5 x 4? Commutative property ... Which multiplication properties help evaluate 77 x 25 x 4? Distributive. Unless it's 77 x ...

The Associative Property of Mulitplication states that you can solve the expression by switching the group order. Since the current group is (7*50), we can change the group to (50*4).

From this: (7*50)*4

To This: 7*(50*4)

Hope this helps! Please correct me if I have made any mistakes!

The original price of a watch was $550. During a mid-year sale, the selling price of the watch was $440. Find the percent discount

Answers

I think its 20 percent

PLEASE HELP [[99 POINTS!!!!!!}

Answers

i think the answer is D because its multiplying by 2 each time

D) 2, 4, 8, 16, 32

Explanation:

In order for it to be a geometric sequence, it has to be multiplied by the same number every time. The only equation that demonstrates this is the last one since it is being multiplied by 2 every time.

The geometric sequence equation is
A(n) = a* r^{n-1}
a( n ) = term in the sequence
a = first term
r = common ratio (what it's multiplied by every time)

A convex polygon has five sides what is the sum of the exterior angle of the polygon