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vredina [299]
3 years ago
13

Need Help please! I think its "A" but i'm doubting .

Mathematics
1 answer:
Bad White [126]3 years ago
4 0

Answer:

b

Step-by-step explanation:

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The lengths of a triangle are 12 and 23 meters find the range of possible lengths for the third side
sergij07 [2.7K]

Answer: 11 < x < 35

suppose: the length of the third side is x

because x is the third side of a triangle

=> 23 - 12 < x < 23 + 12

⇔ 11 < x < 35

Step-by-step explanation:

6 0
2 years ago
A shipment of 40 fancy calculators contains 3 defective units. What is the probability if a college bookstore buys 20 calculator
JulsSmile [24]

Answer:

38.46%

Step-by-step explanation:

There are no names or marking that can make the calculator look different, so the order is not important. Then we should use a combination to solve this problem.

There are 40 calculators in one shipment, 37 of them good items and 3 of them are defect items. We need to choose 19 good calculators and 1 defect calculator. The number of ways to do that will be:

\frac{37}{19}* \frac{3}{1}= 37!\frac{37!}{19!(37-19!)} * \frac{3!}{1!(3-1)!}= 53017895700

The number of possible ways to choose 20 calculators out of 40 calculators will be:

\frac{40}{20}= \frac{40!}{20!(40-20!)}=137846528820

The chance will be: 53017895700/ 137846528820 = 0.3846= 38.46%

4 0
3 years ago
Matthew sold 528 sets of dinnerware in a year.If each set contained 14 pieces.How many pieces were sold in all?​
Zina [86]
He sold 7392 sets this year
5 0
2 years ago
8. For all pairs of real numbers P and Q where<br> P = 2Q + 9, Q = ?
Gnom [1K]

Answer:

Q = (P-9)/2

Step-by-step explanation:

5 0
2 years ago
If the average of x, y, and z is 32 and the average of y and z is 27, what is the average of x and 2x?
Orlov [11]
X + y + z = 32 * 3
27 + 27 + x = 96
X = 54
2x = 108
Average of x and 2x = (54+108) / 2 = 164 / 2 = 82
Average of X and 2X = 82
6 0
2 years ago
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