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KonstantinChe [14]
2 years ago
8

Select the correct interpretation of the probability of guessing the date of his birth, given that he told you in what month he

was born. Interpret an event as significant if its probability is less than or equal to 0.05.
A) Significant
B) Not significant

Mathematics
1 answer:
lord [1]2 years ago
6 0

Answer: significant

Step-by-step explanation: see attachment

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What is the value of x in the equation 0.7x – 1.4 = –3.5?
deff fn [24]

0.7x-1.4 =-3.5

 add 1.4 to each side

0.7x = -2.1

 x = -2.1 / 0.7

x = -3

 Answer is B -3

3 0
2 years ago
Read 2 more answers
A freight train completes its journey of 150 miles 1 hour earlier if its original speed is increased by 5 miles/hour what is the
vlabodo [156]
<span>A freight train completes its journey of 150 miles 1 hour earlier if its original speed is increased by 5 miles/hour. What is the train’s original speed?
***
let x=original speed
x+5=increased speed
travel time=distance/speed
..
lcd:x(x+5)
150(x+5)-150x=x(x+5)
150x+750-150x=x^2+5x
x^2+5x-750=0
(x-25)(x+30)=0
x=25
What is the train’s original speed? 25 mph</span>
7 0
2 years ago
I talk to an average of 8 customers per hour during an 8 hour shift and need to increase the amount of customers i help by 20%,
lbvjy [14]

Answer:

The number of customer needed to achieve is 34

Step-by-step explanation:

Given as :

The number of customer per hour = 8

The time taken = 8 hours

The rate of increase = 20 %

Let The increase in number of customer after 20 % increment = x

So ,  The number of customer after n hours = initial number × (1+\dfrac{\textrm rate}{100})^{n}

or, The number of customer after 8 hours = 8 ×  (1+\dfrac{\textrm 20}{100})^{8}

or, The number of customer after 8 hours = 8 × 4.2998

∴The number of customer after 8 hours = 34.39 ≈ 34

Hence The number of customer needed to achieve is 34  answer

8 0
2 years ago
The geometric average of -12%, 20%, and 25% is _________.
Grace [21]
<span>20.28% is the answer</span>
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2 years ago
The shortest leg of a right triangle is 27 units. The other leg is the solution to 2x – 5 = 67. What is the length of the hypote
Ratling [72]

Answer:45

Step-by-step explanation:

3 0
2 years ago
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