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gayaneshka [121]
4 years ago
14

Simplify the following expression. (4x2 + 8x + 15) + (x2 − x − 27) − (x + 5)(x − 7)

Mathematics
1 answer:
mario62 [17]4 years ago
3 0

Answer:

X^2+ 2x+35

Step-by-step explanation:

Use pemdas. Multiply the parentheses. Multiply. Collect like terms. Remove the parentheses.

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If a game consists of picking a number from a bag of beans numbered 2, 2, 3, 4, and 5 and flipping a coin, which probabilities a
Semenov [28]

The true statement is (d) none of the above

<h3>Missing information</h3>

I. P(3 and tail)

II. P(even and head)

III .P(odd and head)​

<h3>How to determine the equivalent probabilities?</h3>

We start by calculating each probability

<u>I. P(3 and tail) </u>

There is only one 3 in the 5 numbers.

So:

P(3) = 1/5

The probability of a tail in a coin is:

P(Coin) = 1/2

So, we have:

P(3 and tail) = 1/5 * 1/2

P(3 and tail) = 1/10

<u>II. P(even and head) </u>

There are three even numbers in the 5 numbers.

So:

P(even) = 3/5

The probability of a head in a coin is:

P(head) = 1/2

So, we have:

P(even and head) = 3/5 * 1/2

P(even and head) = 3/10

<u>III .P(odd and head)​</u>

There are two odd numbers in the 5 numbers.

So:

P(odd) = 2/5

The probability of a head in a coin is:

P(head) = 1/2

So, we have:

P(odd and head) = 2/5 * 1/2

P(even and head) = 1/5

By comparing the results, none of the probabilities are equal.

Hence, the true statement is (d) none of the above

Read more about probability at:

brainly.com/question/25870256

#SPJ1

6 0
2 years ago
What is the hourly wage if you are paid $403.20 for 36 hours of work?
Vika [28.1K]

Answer: $11.20

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
If Debbie ran Wednesday's distance (which is 1 3/4) 6 times a week, would she reach her goal of 10 miles?
vfiekz [6]

Answer:

Yes, she would reach her goal of 10 miles. She would have ran 10.5 (or 10 1/2) miles.

Step-by-step explanation:

If you multiply 1 3/4 (7/4) times 6 (6/1) you would get 10 1/2, which in decimal form is 10.5.

Hope this helps!

~

6 0
3 years ago
Factor out the coefficient of -6y-18
yawa3891 [41]

Answer:

factor -6 out of -6y - 18

Step-by-step explanation:

honestly i got it off of a math website that i use, all of my answers from it are usually correct but if it's wrong feel free to delete it

8 0
3 years ago
What is the perimeter of the fifth square in this pattern?
torisob [31]
The first square has side lengths of 4 units(because the square root of 16 is 4). The second square has side lengths of 8 units. The third square has side lengths of 12 units. As you can tell, the side lengths increase by 4. So the fourth square will have side lengths of 16 units, and the fifth square will have side lengths of 20 units. The question wants the perimeter, so the answer is 20*4(sum of 4 sides of equal lengths) which is 80 units.
5 0
3 years ago
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