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3 years ago

Guidewords for the word “serpent” may be

SAT

2 answers:

omeli [17]3 years ago

4 0

Answer: A On EDG 2020

Lisa [10]3 years ago

3 0

I think it’s the answer A

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Which of the following characterize standard language? Select all that apply.

sattari [20]

Used in formal settings

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3 years ago

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When proving the product, quotient, or power rule of logarithms, various properties of logarithms and exponents must be used. Wh

12345 [234]

The property that must be used in all the proofs is: logb(b^y) =y

<h3>What are the proofs or rules of logarithms?</h3>

The proofs are statements that are used to validate or invalidate a logarithmic expression

There are several proofs of logarithms; some of them are:

Product rule
Quotient rule
Power rule
Change of base

The common property in the first three proofs (listed above) is:

$\log_b(b^y) =y$

This is so because, it links all the three proofs

Read more about equations at:

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2 years ago

Which of these is an example of a conclusion? (2 points)

7nadin3 [17]

C) sound waves do not travel in a vacuum. It's also true

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3 years ago

Name 3 things you learned about Hitler’s plan from the Crash Course video

diamong [38]

Answer:

Hitlers plan was to take over Poland, Austria, and nearby countries including Belgium. Hitler wanted a white/ Arian ethnostate, creating what he believed to be the master race. This would include killing those who he thought wouldn't produce that "master race". Those people would range from those with disabilities to those who practiced a different religion. The most prominent being Jewish citizens.

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3 years ago

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For how many three digit numbers (100 to 999) is the sum of the digits even?.

attashe74 [19]

The digital sum of a 3-digit number is even if

• all 3 of its digits are even, or

• 2 of its digits are odd and 1 is even

Count the number of 3-digit numbers, all of whose digits are even:

• the first digit cannot be 0, and otherwise has 4 options (2, 4, 6, or 8)

• the second and third digits each have 5 options (2, 4, 6, 8, or 0)

So there are 4 × 5² = 100 such numbers.

Count the number of 3-digit numbers with 2 odd digits and 1 even digit:

• if the first digit is even, then there are 4 options (2, 4, 6, or 8), and the other two digits each have 5 options (1, 3, 5, 7, or 9)

• if the first digit is odd, then there are 5 options (1, 3, 5, 7, or 9); if the second digit is also odd, it has the same 5 options; then the third digit is even and has 5 options (2, 4, 6, 8, or 0)

Swapping the second and third digits in the last case gets the same amount of numbers; we're effectively multiplying by the number of permutations of 2 objects taken 2 at a time, 2!.

So there are 4 × 5² + 2! × 5³ = 350.

Then there is a total of 450 3-digit numbers whose digital sums are even.

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3 years ago