What are natural numbers?

Mathematics

2 answers:

scoundrel [369]3 years ago

8 0

Natural numbers are lie 1 2 3 4 5 6 7 8 9 and so on

SashulF [63]3 years ago

5 0

The set of counting numbers {1, 2, 3, 4, ...} is called the set of natural numbers. The natural numbers begin at 1 and go in indefinitely. The number 0 is not a counting number because when we count, we don’t usually start with 0.

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1. A line passes through (9, -9) and (10,-5).

jenyasd209 [6]

Answer:

1. y+5=4x-40

2.y=4x-45

Step-by-step explanation:

To get the slope of a line you do y₂-y₁/x₂-x₁ so we plug in the values -9+5/9-10 and we get -4

Point-slope form states y-y₁=m(x-x₁) where m is the slope so plug in the values we get y+5=4(x-10) and you get y+5=4x-40 then turn this equation into y=mx+b and get y= 4x-45

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3 years ago

What is the factorization of 84

Vladimir79 [104]

Answer:

2×2×3×7

Step-by-step explanation:

84 is even, so divisible by 2. 84 = 2×42

42 is even, so divisible by 2. 82 = 2×2×21

21 has a sum of digits of 3, so is divisible by 3. 84 = 2×2×3×7

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3 years ago

How many candy bars must be sold to earn a profit of $600

Juliette [100K]

Well, it depends how much is each candy bar?

8 0

2 years ago

Read 2 more answers

A humanities professor assigns letter grades on a test according to the following scheme. A: Top 12% of scores B: Scores below t

RUDIKE [14]

Answer:

The minimum score required for an A grade is 88.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 77.8, \sigma = 8.5$