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patriot [66]
4 years ago
7

how many different combinations are possible if four itemsare drawn from a group of seven different items

Mathematics
1 answer:
laiz [17]4 years ago
7 0
You would just do 4 x 7, which means there are 28 combinations.
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If 1679 parts are made in 7 hours, what is the average rate at which these parts are being made per hour?
luda_lava [24]
1679/7
=239.85...
Rounds to 240
So average rate is 240
4 0
3 years ago
Which expression is equivalent to a^3 • b^3 • a^-3 • b?
Dmitry [639]
The answer is B! b^4. If we examine the expression given, we have a^3 * b^3 * a^-3 * b= a^3/a^3 * b^3 * b = 1 * b^4

Hope this helps! Any questions please feel free to ask!!

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3 0
3 years ago
Stephanie has a balance of $-124.50. She deposits $557.21, How much money was in Stephanie's account after the deposits?
valkas [14]

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5 0
3 years ago
Suppose that a dog, a goat, and a bag of tin cans are to be transported across a river in a ferry that can carry only one of the
Bingel [31]

Answer:

The task is explained in detail below.

Step-by-step explanation:

We know that  a dog, a goat, and a bag of tin cans are to be transported across a river in a ferry that can carry only one of these three items at once (along with a ferry driver).  

The driver will first transport the goat to the other shore and then return empty. Then they will take a bag of tin and transport it to the other shore, and then they will return with the goat to their original place.  

Then he will leave the goat there and take a dog and carry it to the other shore and then return empty.

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4 0
3 years ago
Use factoring to solve the quadratic equation x2 − 2x − 3 = 12.
melomori [17]

Answer:

x_1=5\\x_2=-3

Step-by-step explanation:

You have the following quadratic equation given in the problem:

x^{2}-2x-3=12

You must make the equation equal to zero, as following:

x^{2}-2x-3-12=0

Add like terms:

 x^{2}-2x-15=0

Now, to factor the equation, you must find two numbers whose sum is -2 and whose product is -15. Therefore, you have:

(x-5)(x+3)=0\\x_1=5\\x_2=-3

7 0
3 years ago
Read 2 more answers
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