2 years ago

Question 6 (2 points)

Mathematics

1 answer:

irinina [24]2 years ago

3 0

to inverse a equation make all y's x and andy x's y

Thus the inverse is

x=4y-8

Evaluated to

4y=x+8

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1.Take 4x + 2 from 8x + 5.

kykrilka [37]

8x + 5 - (4x + 2)

= 8x - 4x + 5 - 2
= 4x + 3

2.
This is a binomial ( contains 2 terms)

7 0

2 years ago

Read 2 more answers

There are 30 children eating ice cream. 2/5 of the children have chocolate. 1/3 of them have vanilla. The rest have strawberry.

defon

Answer:

28/2

Step-by-step explanation:

8 0

2 years ago

Prove by mathematical induction that 1+2+3+...+n= n(n+1)/2 please can someone help me with this ASAP. Thanks

Iteru [2.4K]

Let

$P(n):\ 1+2+\ldots+n = \dfrac{n(n+1)}{2}$

In order to prove this by induction, we first need to prove the base case, i.e. prove that P(1) is true:

$P(1):\ 1 = \dfrac{1\cdot 2}{2}=1$

So, the base case is ok. Now, we need to assume $P(n)$ and prove $P(n+1)$ .

$P(n+1)$ states that

$P(n+1):\ 1+2+\ldots+n+(n+1) = \dfrac{(n+1)(n+2)}{2}=\dfrac{n^2+3n+2}{2}$

Since we're assuming $P(n)$ , we can substitute the sum of the first n terms with their expression:

$\underbrace{1+2+\ldots+n}_{P(n)}+n+1 = \dfrac{n(n+1)}{2}+n+1=\dfrac{n(n+1)+2n+2}{2}=\dfrac{n^2+3n+2}{2}$

Which terminates the proof, since we showed that

$P(n+1):\ 1+2+\ldots+n+(n+1) =\dfrac{n^2+3n+2}{2}$

as required

4 0

2 years ago

Please answer the question above.

Crank

Answer:

Waffle house :3

Step-by-step explanation:

8 0

2 years ago

PLEASE HELP!!!! 20 POINTS!!!! What best describes the following equation?

TiliK225 [7]

It’s both a relation and a function

5 0

2 years ago