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gizmo_the_mogwai [7]
3 years ago
15

Alexis wants to buy $500 worth of new clothes before school starts. She decides to have a garage sale to earn the money for the

clothes. She hopes to sell her comic book collection for $200, stuffed toys for $100, a bicycle for $50, and a few knicknacks from her room for $250. The probabilities that her neighbors want to buy the stuff Alexis is selling are distributed as shown in the table. P(X) Probability Comics Toys Bikes Knicknacks What is Alexis's expected garage sale income, and how much more would she need to earn to break even?
Mathematics
1 answer:
Digiron [165]3 years ago
4 0
Answer choices given?
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Choose the Theorem needed to find x, then find x.
Maru [420]

Answer: triangle sum , x= 9

Step-by-step explanation:

The triangle angle sum theorem states that the 3 interior angles of a triangle sum to 180 degrees. Add all of the angle measures together and set equal to 180. (3x-4)+(5x-7)+(13x+2) = 180. Combine like terms. 21x -9 = 180. Add 9 to both sides. 21x= 189. Divide both sides by 21. X = 9

5 0
3 years ago
What is the height of an equilateral triangle with side lengths of 14?
olganol [36]
If Each side of an equilateral triangle<span> is 10 m. ... Thus </span>triangle<span> APC is a right</span>triangle<span>. The length of CA is 10 m, and the length of PC is 5 m, and hence you can use Pythagoras' theorem to find the length of AP, which </span>is the height<span> of the </span>triangle<span>ABC.
</span>If Each side of an equilateral triangle<span> is 10 m. ... Thus </span>triangle<span> APC is a right</span>triangle<span>. The length of CA is 10 m, and the length of PC is 5 m, and hence you can use Pythagoras' theorem to find the length of AP, which </span>is the height<span> of the </span>triangleABC. 
5 0
4 years ago
Read 2 more answers
Which set of numbers represents a Pythagorean triple
Anuta_ua [19.1K]

Answer:

27,36,45

Step-by-step explanation:

Pythagorean theorem

a^{2} +b^{2} =c^{2}

6^{2}+ 9^{2}\\ =117\\\neq 12^{2}

7^{2}+ 10^{2}\\ =149\\\neq 12^{2}

16^{2}+ 18^{2}\\ =580\\\neq 25^{2}

27^{2}+ 36^{2}\\ =2025\\= 45^{2}

3 0
3 years ago
A box measures 20 inches wide by 14 inches deep. The height of the box is two feet. What is the volume of the box? Remember two
Jobisdone [24]

Answer:

6,720 inches or 560 feet

Step-by-step explanation:

20 x 14 x 24 = said number above.

Remember volume is just length times width times height.

8 0
3 years ago
A triangle has side lengths of 3 feet and 9 feet.which is the greatest possible perimeter of the triangle
OLga [1]
21 because you have to have at least 1 side as 3m so the other two should be 9m to have the greatest possible length
6 0
3 years ago
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