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3 years ago

Simplify the expression help

Mathematics

2 answers:

kolezko [41]3 years ago

7 0

Answer:

225/(7-4)^2-15

225/(3)^2-15

225/9-15

25-15

Step-by-step explanation:

natita [175]3 years ago

5 0

The answer is 10.

Hope this helps!

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3 years ago

Required information NOTE: This is a multi-part . Once an answer is submitted, you will be unable to return to this part A club

algol13

Answer:

491400

Step-by-step explanation:

Given : A club has 28 members.

To Find : . How many ways are there to choose four members of the club to serve on an executive committee?

Solution:

We are supposed to choose four members of the club out of 28.

So, we will use combination

Formula : $^nC_r=\frac{n!}{r!(n-r)!}$

n = 28

r = 4

Substitute the values :

$^{28}C_{4}=\frac{28!}{4!(28-4)!}$

$^{28}C_{4}=\frac{28 \times 27 \times 26 \times 25 \times 24!}{4!(24)!}$

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Hence there are 491400 ways o choose four members of the club to serve on an executive committee

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3 years ago

What is the place value of the 4 in 4.09?

MaRussiya [10]

Answer:

B: Ones.

Step-by-step explanation:

Because this number is 4.09, and the decimal is right next to the 4, that means that it is in the ones place. Decimals are always adjacent on the right to the ones place.

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2 years ago