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3 years ago

Waiting for other questions

Mathematics

1 answer:

madreJ [45]3 years ago

5 0

The answer is D
If you solve it 25=25
So 3^2+4^2 does equal 5^2

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What are the true and false statements for If two planes intersect, then their intersection is a line. Include converse, inverse

KonstantinChe [14]

Answer and Step-by-step explanation:

Solution:

Statement:

If two planes intersect their intersection is a line.

Suppose that

P =if two planes intersect.

q = then their intersection is line.

¬p = if two planes do not intersect.

¬q = then their intersection is not a line.

Converse:

If two planes intersect their intersection is a line.

P → q

Inverse:

If two planes do not intersect, then their intersection is not a line.

¬p → ¬q

Contrapositive:

If two planes intersection is not a line, then they do not intersect.

¬q → ¬p

3 0

3 years ago

1!+2(2!)+3(3!)+...+n(n!)=(n+1)!-1

anyanavicka [17]

Step-by-step explanation:

OK, let's assume it this way:

Sn=1.1!+2.2!+3.3!+...+n.n!=(2‐1).1!+(3-1).2!+(4-1)3!+...+((n+1)-1).n!

Sn=1.1!+2.2!+3.3!+...+n.n!=(2‐1).1!+(3-1).2!+(4-1)3!+...+((n+1)-1).n!=(2.1!-1!)+(3.2!-2!)+(4.3!-3!)+...+((n-1)n!-n!)=(2!-1!)+(3!-2!)+(4!-3!)+

Sn=1.1!+2.2!+3.3!+...+n.n!=(2‐1).1!+(3-1).2!+(4-1)3!+...+((n+1)-1).n!=(2.1!-1!)+(3.2!-2!)+(4.3!-3!)+...+((n-1)n!-n!)=(2!-1!)+(3!-2!)+(4!-3!)+...+(n+1)!-n!=(n+1)!-1!=(n+1)!-1

and boom problem solved

7 0

2 years ago

4x-5x+7-9y+2x+34 (Simply)

Studentka2010 [4]

I believe it is 1x - 9y + 41

5 0

3 years ago

Read 2 more answers

What is the solution to 4x+6 is less than or equal to 18?

Sunny_sXe [5.5K]

Hey there! :)

Answer:

x ≤ 3

Step-by-step explanation:

Given:

4x + 6 ≤ 18

Subtract 6 from both sides:

4x ≤ 12

Divide both sides by 4:

4x/4 ≤ 12/4

x ≤ 3

6 0

2 years ago

Read 2 more answers

How many cupcake are in 1/3 dozen

Anettt [7]

4 cupcakes because if you do 12/ 1/.. you do kcf = to 12 x 1/3= 4

your welcome

7 0

3 years ago