3 years ago

N(n+1)+3=45 what number n makes?

Mathematics

1 answer:

torisob [31]3 years ago

4 0

Answer:

The answer is 20.5

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URGENT this is a question on my precalculus test I need help on. Thank you so much

sp2606 [1]

Answer:

a. 5i + 13j

b. 8i

c. 10i + 6j

Step-by-step explanation:

a. 2i + 6j + 3i + 7j = 5i + 13j

b. 3i + 7j + 5i - 7j = 8i

c. 2i + 6j + 3i + 7j + 5i - 7j = 10i + 6j

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3 years ago

Two numbers are randomly selected on a number line numbered 1 through 9. The same number can be chosen twice. What is the probab

Effectus [21]

(3)/(8+7+6+5+4+3+2+1)(no repitition)
=3/36
=1/12

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3 years ago

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How many times smaller is 4 × 10-9 than 8 × 10-7? A. 200 B. 20 C. 20,000 D. 2,000

masya89 [10]

Answer:

Step-by-step explanation:

4×10-9= 4

8×10-7=21

21-4=17

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3 years ago

Mayra bought x grams of rice. Anika bought 1/3 more than mayra bought.

Jobisdone [24]

1/3x is the answer.....

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3 years ago

Formula to find the number of subsets of a set that has "n" number of elements. 2 raise 1)to the nth power 2)n squared 3)2 times

KiRa [710]

Answer:

(A) $2^n$

Step-by-step explanation:

Given a set with "n" number of elements, the collection of all subsets of the set is referred to as the Power set of the given set.

To find the number of possible subsets of any set, we use the formula: $2^n$

Take for example the set: A={2,3,4)

A has 3 elements, therefore n=3

The number of possible subsets of A is: $2^3=8$ subsets$

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4 years ago