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alina1380 [7]

3 years ago

ula">× $x^{3}$ = $x^{2}$ true or false

Mathematics

1 answer:

LenaWriter [7]3 years ago

3 0

True
When multiplying exponents with the same base you add the exponents
-1+3=2

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Find the volume v of the described solid s.a right circular cone with height 6h and base radius 4r

guapka [62]

Use this formula=1/3πr2h

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3 years ago

How many different strings of length 12 containing exactly five a's can be chosen over the following alphabets? (a) The alphabet

N76 [4]

Answer:

Part (A) The required ways are 792.

Part (B) The required ways are 101376.

Step-by-step explanation:

Consider the provided information.

Part (A) The alphabet {a, b}

The length of strings is 12 that containing exactly five a's.

The number of ways are: $\frac{12!}{5!7!}$

After filling "a" we have now 7 places.

For 7 places we have "a" and "b" alphabet but we already select a's so now the remaining place have to fill by "b" only.

Thus, the required ways are: $\frac{12!}{5!7!}\times 1=792$

Part (B) The alphabet {a, b, c}

We have selected five a's now we have now 7 places.

For 7 places we have "b" and "c".

Thus, there are 2 choices for each 7 place that is $2^7$

Therefore the total number of ways are: $792\times 2^7=101376$

Thus, the required ways are 101376.

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4 years ago

Does anyone know the answerrr ?

babunello [35]

Answer:

120

Step-by-step explanation:

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3 years ago

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A researcher would like to examine the political attitudes for students at a local university. The researcher will evaluate a sa

professor190 [17]

Answer:

Simple random sampling

Step-by-step explanation:

Simple random sampling is a subdivision of a sample chosen from a population. Individuals are randomly chosen by chance and each individual possess the same characteristics as every other person in the population. It is a a surveying technique that is unbiased.

The idea of this sampling method is that every object has an equal chance of being chosen.

If the researcher evaluates 200 students out of the population and make sure the sample reflects the population, the sampling method used is simple random sampling.

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4 years ago

Help mee please !!!!

Ilia_Sergeevich [38]

Answer:

Step-by-step explanation:

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3 years ago