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Elena L [17]
2 years ago
13

(2x-1) (3x+5) -(2x-1) (x+4)

Mathematics
1 answer:
Veseljchak [2.6K]2 years ago
8 0

Answer:

4x^2−1

Step-by-step explanation:

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John Paul gave the cashier $50 to pay for 8 bags of apples. The cashier gave him $17.49 in change.
Leona [35]
I believe the answer is $4.06

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3 years ago
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Are 2/5 4/10 6/15 and 8/20 proportional?
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Yes, since you can multiply 2/5 numerator and denominator to get the rest of the fractions, it makes them all equivalent.
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In a particular lottery, 5 winning numbers are drawn from a set of 37 numbers. What is the probability of picking exactly 2 of t
anygoal [31]

Since 5 winning numbers are draw and there are exactly 2 winning numbers, the other 3 numbers chosen have to be incorrect.

The 2 numbers picked right, there are 5C2=10 different possibilities.

The other 3 numbers are just picked from the rest of the 32 numbers. Getting there are 32C3=4960 different possibilities.

For each set of 2 correct winning numbers, you could have the 4960 different losing numbers to match up to make a unique set. This meant that there are 4690*10=46900 different total possibilities.

Now the total different outcomes of how you can choose the numbers are 37C5=435897 outcomes.

Now the way to find probabilities is want/total

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Doing the division you get the number rounded to the nearest thousandths as   0.107 or in percent form as

10.759% chance of picking exactly 2 winning numbers.

This seems like a competition problem of some sort therefore I assume that you already know what combinations in form nCk and permutation in form nPk means.

8 0
2 years ago
Which of the following is equivalent to 18-V-25
EastWind [94]

Answer:

the correct answer is 18 - 5i.

Step-by-step explanation:

7 0
3 years ago
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PLSS HELP IF YOU TURLY KNOW THISS
yaroslaw [1]

Answer:

x = 11

Step-by-step explanation:

(0.3x - 2.1)/3 = 0.4

0.3x - 2.1 = 0.4 * 3

0.3x - 2.1 = 1.2

0.3x = 1.2 + 2.1

0.3x = 3.3

x = 3.3/0.3

x = 11

6 0
3 years ago
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