3 years ago

2, 3, 5, 8, 11, 12, 13, 20, 21

Mathematics

1 answer:

Luba_88 [7]3 years ago

7 0

2. 2n-5=7
       +5+5    no makes it 2n=12 do 12/2 and you get 6 and thats your answer hope i helped

You might be interested in

I need help with is question

goldfiish [28.3K]

A is the correct answer.

3 0

3 years ago

What's the equivalent of the expression -2 (-x +5y ) + 3 (2x - 6y)?

Anastasy [175]

Answer:

Step-by-step explanation:

-2 (-x +5y ) + 3 (2x - 6y)

Opening bracket

= 2x - 10y + 6x - 18y

= 8x - 28y

= 4(2x - 7y)

6 0

3 years ago

Verify cos(180+x)=-cosx<br> Please note the 180 is in degrees.

inna [77]

The angle sum identity for cosine says that

$\cos(180^\circ+x)=\cos180^\circ\cos x-\sin180^\circ\sin x=-\cos x$

because $\cos180^\circ=-1$ and $\sin180^\circ=0$ .

5 0

3 years ago

If the occurrence of one event does not influence the outcome of another event, then two events are:

Len [333]

Answer:

C. Independent

Step-by-step explanation:

Independent events are events that have no impact on each other.

So, if the occurrence of an event doesn't influence the outcome of another, this means that they are independent because they do not impact each other.

This must mean C is correct because the two events have to be independent.

3 0

3 years ago

At the beginning of an experiment, there are 500 grams of contaminants. Each hour, one fourth of the contaminants

quester [9]

Answer:

Step-by-step explanation:

Amount Of Gram= 500

one fourth of gram in one hour=1/4×500 = 125

in four hours the gram filtered out = 4×125= 500

therefore the amount of gram remaining in the contaminants = 500-500= 0 gram

7 0

2 years ago