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pentagon [3]
4 years ago
12

A coffee machine can be adjusted to deliver any fixed number of ounces of coffee. if the machine has a standard deviation in del

ivery equal to 0.4 ounce, what should be the mean setting so that an 8-ounce cup will overflow only 0.5% of the time?
Mathematics
1 answer:
zysi [14]4 years ago
6 0
The mean will be calculates as follows; from the formula of z-score we shall have:
z=(x-μ)/σ
the z-score associated with 0.5% is 0
thus
0=
(8-μ)/0.4=0
solving for x we get:
μ=9 

Answer: μ=9

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Mr. Evan is paid $9.20 per hour for the first 40 hours he works in a week he is paid 1.5 times that rate for each hour after tha
faust18 [17]
That is incorrect. The correct answer should be $398.38
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7 0
3 years ago
What is the length of line ED?
oee [108]

Answer:

ED = 8

Step-by-step explanation:

2x+4 = (3/2)x+6

2x = (3/2)x+2

(1/2)x = 2

x = 4

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8 0
4 years ago
PLEASE HELP WILL MARK BRSINLIEST!!!!!
Lina20 [59]

Answer:

a) Yes

b) Not a right triangle

Step-by-step explanation:

<h3><u>Part (a)</u></h3>

The sum of the lengths of any 2 sides of a triangle is greater than the length of the 3rd side.

7 + 8 = 15 > 9

7 + 9 = 16 > 8

8 + 9 = 17 > 7

Therefore, a triangle with side lengths 7, 8 and 9 <u>can</u> be made.

<h3><u>Part (b)</u></h3>

To determine if the triangle is a right triangle, use Pythagoras' Theorem:

a² + b² = c² (where a and b are the legs, and c is the hypotenuse)

The hypotenuse is the longest side, therefore:

  • a = 7
  • b = 8
  • c = 9

Substituting these values into the formula:

⇒ a² + b² = c²

⇒ 7² + 8² ≠ 9²

⇒ 113 ≠ 81

As  7² + 8² ≠ 9²  then the triangle is <u>not</u> a right triangle.

8 0
3 years ago
Which of these graphs represents a function?
Leno4ka [110]

Answer:

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5 0
4 years ago
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grandymaker [24]

Answer:

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Step-by-step explanation:

I attached an image of how to do the division. It is kind of difficult to explain like this.

3 0
3 years ago
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