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LUCKY_DIMON [66]
3 years ago
14

Hannah has 6 orange sweets and some yellow sweets. Overall, she has n sweets. The probability of her taking 2 orange sweets is 1

/3. Prove that: n^2-n-90=0
Mathematics
1 answer:
Alex_Xolod [135]3 years ago
8 0
The probability of her taking first orange sweet is 6/n. The probability of her taking second orange sweet is 5/(n-1). So the probability of taking 2 orange sweets is (6/n)*[5/(n-1)]=1/3. Deformation this equation, we can get that n^2-n-90=0.
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In triangle RST,angle R is a right angle .If TR = 6 and TS =8 what is the length of RS
mylen [45]
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3 years ago
The ADMHS football team is trying to raise money to buy new equipment so the players are selling "Jaguar Cards" for $20 each. If
alekssr [168]

Answer:

The inequality to represent the situation is 20x\geq 3000 and the team must sell at least 15 "Jaguar Cards".

Step-by-step explanation:

Given: The ADMHS football team is trying to raise money to buy new equipment so the players are selling "Jaguar Cards" for \$20 each.

If the football team needs to raise at least \$3,000 for equipment.

To find: The inequality to represent the situation and the least number of "Jaguar Cards" the team must sell.

Solution:

Let the ADMHS football team sold x "Jaguar Cards" for \$20 each.

Now, the football team needs to raise at least \$3,000 for equipment.

So, the inequality to represent the situation is 20x\geq 3000.

Now, on solving we get,

20x\geq 3000

\implies x\geq \frac{300}{20}

\implies x\geq 15

Hence, the inequality to represent the situation is 20x\geq 3000 and the team must sell at least 15 "Jaguar Cards".

4 0
3 years ago
Suppose you are in a building at 28 feet above ground level and you take an
rewona [7]

Answer:

Suppose you are in a building at 28 feet above ground level and you take an

escalator down to ground level. On the escalator, your distance above ground level

changes by - 2 feet per second. Write a linear function to describe the distance d

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Step-by-step explanation:

4 0
3 years ago
Write as a product:<br> a2+b2–2ab –25
kozerog [31]

Answer:  -a2 - 2ab - b2 + 25  =

 -1 • (a2 + 2ab + b2 - 25)

Final result :

 -a2 - 2ab - b2 + 25

Step-by-step explanation:

3 0
3 years ago
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