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stiv31 [10]
3 years ago
9

I need help with number 17 please, and show work. I keep getting different answers. 1

Mathematics
1 answer:
irga5000 [103]3 years ago
7 0
Attached solution and work.

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When waiting to land, an airplane is traveling above the airport in a holding pattern that can be modeled by the equation 49x2 +
Fiesta28 [93]
49x^2 + 64y^2 = 3136 . . . (1)
y - 6 = (1/4)x^2 . . . (2)

From (2), x^2 = 4(y - 6) = 4y - 24 . . . (3)

Putting (3) into (1) gives
49(4y - 24) + 64y^2 = 3136
196y - 1176 + 64y^2 = 3136
64y^2 + 196y - 4312 = 0
y = 6.819
x = sqrt(4(6.819) - 24)
x = 1.81

The possible point of collision is (1.81, 6.819)
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3 years ago
The formula c = 5p + 200 relates c, the total cost in dollars of hosting a birthday party at a skating rink, to p, the number of
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20 people can attend


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7 0
3 years ago
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Whats is equivanlent fractions of 24/84
Aloiza [94]

Answer:

2/7

Step to step explanation:

This question is in other words, asking you to simplify the fraction.

Find the GCF and divide both the denominator and numeratior by the GCF.

The GCF of 24/84 is 12.

24/12 = 2

84/12 = 7.

3 0
3 years ago
A gondola (cable car) at a ski area holds 50 people. Its maximum safe load is 10000 pounds. A population of skiers has a distrib
fenix001 [56]

Answer:   0.03855

Step-by-step explanation:

Given :A population of skiers has a distribution of weights with mean 190 pounds and standard deviation 40 pounds.

Its maximum safe load is 10000 pounds.

Let X denotes the weight of 50 people.

As per given ,

Population mean weight of 50 people = \mu=50\times190=9500\text{ pounds}

Standard deviation of 50 people =\sigma=40\sqrt{50}=40(7.07106781187)=282.84

Then , the probability its maximum safe load will be exceeded =

P(X>10000)=P(\dfrac{X-\mu}{\sigma}>\dfrac{10000-9500}{282.84})\\\\=P(z>1.7671-8)\\\\=1-P(z\leq1.7678)\ \ \ \ [\because\ P(Z>z)=P(Z\leq z)]\\\\=1-0.96145\ \ \ [\text{ By p-value of table}]\\\\=0.03855

Thus , the probability its maximum safe load will be exceeded = 0.03855

3 0
3 years ago
Devin is collecting signatures for a petition to open a new park in her town. She needs to collect at least 1,000 signatures bef
san4es73 [151]

Answer:

B) 8 ≤ p

Step-by-step explanation:

1000 - 380 = 620

620 / 80 = 7.75

Round it up to 8

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3 years ago
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