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slamgirl [31]
2 years ago
12

Two vehicles, a car and a truck, leave an intersection at the same time. The car heads east at an average speed of 30 miles per

hour, while the truck heads south at
an average speed of 70 miles per hour. Find an expression for their distance apart d (in miles) at the end of thours.
At the end of t hours, the two vehicles are miles apart.
(Simplify your answer. Type an exact answer, using radicals as needed.)
Mathematics
1 answer:
svet-max [94.6K]2 years ago
8 0
I don’t fully understand but you might be able to do something like

70t -30t = d, but I think that would be how much farther they are from the start point, but assuming they are driving in a straight line or would be a right triangle, so maybe The square root of 70t^2 + 30t^2
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Greeley [361]

Answer: the probability that fewer than 100 in a random sample of 818 men are bald is 0.9830

Step-by-step explanation:

Given that;

p = 10% = 0.1

so let q = 1 - p = 1 - 0.1 = 0.9

n = 818

μ = np = 818 × 0.1 = 81.8

α = √(npq) = √( 818 × 0.1 × 0.9 ) = √73.62 = 8.58

Now to find P( x < 100)

we say;

Z = (X-μ / α) = ((100-81.8) / 8.58) = 18.2 / 8.58 = 2.12

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from z-score table

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4 0
3 years ago
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valentinak56 [21]

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Step-by-step explanation:

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2 years ago
How to create every number from 1-50 and I you could only use numbers 1,2,3,4
sergey [27]
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3 years ago
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Mashutka [201]

Answer:

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5 0
3 years ago
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Musya8 [376]
<span>
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3 0
3 years ago
Read 2 more answers
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