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Ilia_Sergeevich [38]
3 years ago
6

Approximately 18% of the calls to an airline reservation phone line result in a reservation being made. (a) suppose that an oper

ator handles 15 calls. what is the probability that none of the 15 calls result in a reservation?
Mathematics
1 answer:
MrRissso [65]3 years ago
3 0
Answer: The probability that none of the calls would result in a reservation would be 0.72%.

Since there is an 18% chance that there would be a reservation, then there is a 72% chance that there is not a reservation.

Our goal is to determine the likelihood that there are no calls. Or that the 72% chance event happens 15 times.

We can use the following expression to find that repeated probability.

(0.72)^15 = 0.0072 or 0.72%
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Write the standard form of the quadratic equation modeled by the points shown in the table below.
Andre45 [30]
We know that

The Standard Form<span> of a </span>Quadratic Equation<span> is
</span> ax²<span> + bx + c = 0
</span>
then 
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for x=1    y=2
 a*1² + b*1 -6 = 2---------> a+b=8---------> a=8-b---------> equation 1

for x=3    y=-0
 a*3² + b*3 -6 = 0---------> 9a+3b=6---------> equation 2

<span>substituting 1 in 2
9*(8-b)+3b=6------> 72-9b+3b=6---------> 6b=66--------> b=11
a=8-11-------> a=-3
so
a=-3
b=11
c=-6
</span>Standard Form of a Quadratic Equation is
 -3x² + 11x - 6 = 0
<span>
the answer is
</span> -3x² + 11x - 6 = 0<span>

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6 0
3 years ago
Read 2 more answers
Regular quadrilateral prism has an altitude h = 11 cm and base edges b=8 cm. Find the sum of all edges.
natka813 [3]
The first thing we will do is assume that the prism is square based.
 We have then that the edges of the base are:
 P = 4L
 P = 4 (8)
 P = 32 cm
 The edges of the top of the prism are:
 P = 4L
 P = 4 (8)
 P = 32 cm
 The edges of the prism height are:
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 P = 4 (11)
 P = 44 cm
 The total sum will be:
 Pt = 32 + 32 + 44
 Pt = 108 cm
 Answer:
 
the sum of all edges is:
 
Pt = 108 cm
8 0
3 years ago
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What is 56.6 in nearest whole number please help me ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
muminat
To the nearest whole number would be 57, because .6 rounds up to the next whole number

5 0
3 years ago
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In a science experiment, Shelly has to weigh a compound in grams. The balance in her school measures in milligrams (mg). Shelly
exis [7]

Answer:

8.45 grams

Step-by-step explanation:

In a science experiment, Shelly has to weigh a compound in grams. The balance in her school measures in milligrams (mg). Shelly finds that the weight of the compound is 8,450 mg. What is the value in grams (g) that Shelly should enter?

1 mg = 0.001 g

8450 mg = x

Cross Multiply

= 8450 × 0.001 g

= 8.45 g

Therefore, Shelly should enter 8.45 grams

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the student has left 75 because if you add 5 and 70 it gives you $75 that's how much the student had left.

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