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2 years ago

The student council at Spend too much High School is planning a school dance. The table below shows the budget for the dance.

Mathematics

2 answers:

hodyreva [135]2 years ago

6 0

$300 income
$250 + $100 = $350 expenses

$300 - $350 = a loss of $50

Anna71 [15]2 years ago

3 0

Answer: Their expected loss is $50.

Step-by-step explanation:

Since we have given that

Amount the student council can receive by dance tickets = $300

Amount they spent on DJ Denny = $250

Amount they spent on Decoration = $100

Total amount they spent on both is given by

$\$250+\$100\\\\=\$350$

Expected loss is given by Revenue-Expenses

$\$300-\$350\\\\=-\$50$

Hence, their expected loss is $50.

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Step-by-step explanation:

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2 years ago

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Students who party before an exam are twice as likely to fail as those who don't party (and presumably study). If 20% of the stu

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Answer:

The fraction of the students who failed to went partying = $\frac{1}{10}$

Step-by-step explanation:

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2 years ago

The function f(t) = 4t2 − 8t + 8 shows the height from the ground f(t), in meters, of a roller coaster car at different times t.

lidiya [134]

Answer:

f(t) = 4(t − 1)2 + 4; the minimum height of the roller coaster is 4 meters from the ground

Step-by-step explanation:

The function is a quadratic where t is time and f(t) is the height from the ground in meters. You can write the function f(t) = 4t2 − 8t + 8 in vertex form by completing the square. Complete the square by removing a GCF from 4t2 - 8t. Take the middle term and divide it in two. Add its square. Remember to subtract the square as well to maintain equality.

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f(t) = 4(t − 1)2 + 2; the minimum height of the roller coaster is 2 meters from the ground
f(t) = 4(t − 1)2 + 2; the minimum height of the roller coaster is 4 meters from the ground
f(t) = 4(t − 1)2 + 4; the minimum height of the roller coaster is 1 meter from the ground
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