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3 years ago

Name five whole numbers that can be expressed as the difference of two perfect squares. Show the math!

Mathematics

2 answers:

MAXImum [283]3 years ago

5 0

Answer:

I expect 2 and4 and 6 and 8 and 10

ankoles [38]3 years ago

5 0

Mark Brainlest please

Answer ;

The numbers below 100 that are perfect squares are

81

64

49

36

25

16

9

4

Example:

One pair is 25 and 16 and the other pair is 25 and 9.

One pair of numbers that can be expressed as the difference of two squares are 25 and 16: 25–16 = 9 or 5^2–4^2 = 3^2.

The other pair is 25 and 9 or 5^2–3^2 = 4^2

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A thumbtack that is tossed can land point up or point down. The probability of a tack landing point up is 0.2. A simulation was

sweet-ann [11.9K]

Answer:

Option C: 0.28

Step-by-step explanation:

This is a binomial probability distribution problem.

Now, we want to find the probability that at least 2 thumbtacks land pointing up when 5 thumbtacks are tossed. This is written as;

P(X ≥ 2) = P(2) + P(3) + P(4) + P(5)

From the histogram;

P(5) = 0.02

P(4) = 0.02

P(3) = 0.05

P(2) = 0.19

Thus;

P(X ≥ 2) = 0.19 + 0.05 + 0.02 + 0.02

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3 years ago

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2 years ago

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3 years ago

If f(x) = 2x + 5x and g(x) = 3x - 5, find (f+ g)(x).

Papessa [141]

Answer:

D. 10x - 5

General Formulas and Concepts:

Algebra I

Terms/Coefficients/Degrees

Step-by-step explanation:

Step 1: Define

f(x) = 2x + 5x

g(x) = 3x - 5

(f + g)(x) is f(x) + g(x)

Step 2: Simplify

f(x) = 7x

g(x) = 3x - 5

Step 3: Find

Substitute: (f + g)(x) = 7x + (3x - 5)
Combine like terms: (f + g)(x) = 10x - 5

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3 years ago