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2 years ago

The mean weight of NINE players on a Basketball team is 177 POUNDS. Find the total weight of the nine players.

Mathematics

1 answer:

Nikolay [14]2 years ago

3 0

Answer:

The total weight is 1593 lbs.

Step-by-step explanation:

177*9 = 1593

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Tim must read 2 books from a list of 7 recommended books for his summer reading program. In how many different ways can Tim choo

Marianna [84]

There are 21 ways Tim choose 2 books from the 7 recommended book

Solution:

Given that Tim must read 2 books from a list of 7 recommended books for his summer reading program

To find: different ways can Tim choose 2 books from the 7 recommended books

This is a combination problem

A combination is a selection of all or part of a set of objects, without regard to the order in which objects are selected

The formula for combinations is:

$n C_{r}=\frac{n !}{r !(n-r) !}$

where n represents the number of items, and r represents the number of items being chosen at a time

Here we have to choose 2 books from 7 books

Therefore, n = 7 and r = 2

Substituting values in above formula, we get

$\begin{aligned}&7 C_{2}=\frac{7 !}{2 !(7-2) !}\\\\&7 C_{2}=\frac{7 !}{2 ! \times 5 !}\end{aligned}$

For a number n, the factorial of n can be written as,

$n !=n \times(n-1) \times(n-2) \dots \dots \times 2 \times 1$

Therefore, we get

$7 C_{2}=\frac{7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1}{2 \times 1 \times 5 \times 4 \times 3 \times 2 \times 1}\\\\7C_2 = 7 \times 3 = 21$

Thus there are 21 ways Tim choose 2 books from the 7 recommended book

7 0

3 years ago

What happens when you add and subtract integers

Furkat [3]

When u add it stays the same but for subtraction u change the sign.

Example: 2- (-5)=7

5 0

2 years ago

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Does square root of 162 = square root of 81 and square root of 81 added

madam [21]

No.
.. √162 = (√2)*(√81)
.. √81 +√81 = 2√81 = √324

Square root is a non-linear function. sqrt(a +b) ≠ sqrt(a) +sqrt(b)

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3 years ago

Plywood comes in a variety of thickness for different uses put these in order from least to greatest

laiz [17]

Good evening,

Step-by-step explanation:

Look at the photo below for the Answer.

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3 years ago

Salma made 6 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 6 necklaces

IRINA_888 [86]

Answer:

$3.30

Step-by-step explanation:

2.60*6= $15.60 beads per necklace

35.40-15.60= $19.80 total pendant

19.80/6= $3.30 per pendant

8 0

2 years ago

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