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Vinil7 [7]
2 years ago
10

25 points! First RIGHT answer gets brainliest!

Mathematics
2 answers:
nekit [7.7K]2 years ago
7 0

Answer:

I hope this help :)

Step-by-step explanation:

radius: 2.459

diameter: 38

circumference: 119.381

but if you're looking for a more appropriate answer I would round radius and circumference.

fgiga [73]2 years ago
3 0

Answer:

steps below

Step-by-step explanation:

radius: 19/2 = 9.5 ft

diameter: 19 ft

circumference: 2 x 3.14 x 9.5 = 59.66 ft²

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Consider an assembly line with 20 stations. Each station has a 0.5% probability of making a defect. At the end of the line, an i
vova2212 [387]
The answer is 0.4%. The probability that a unit end in a rework can be calculated using the following equation:

P(rework)= P(defects found) * P(defect)
                = .8 * .005
                = .004
                = 0.4%

Thank you for posting your question. Feel free to ask me more.
6 0
2 years ago
A trapezoid has an area of 20 cm2 and a height z cm. The lengths of the parallel sides are (2z + 3) cm and (6z – 1) cm. Find the
Brums [2.3K]

Answer: 2.11cm

Step-by-step explanation:

Given the following :

The lengths of the parallel sides are (2z + 3) cm and (6z – 1) cm

The area of trapezoid is calculated using the formula:

1/2(a + b) × h

Where ;

a = Length of side 1

b = length of side 2

h = height

Take a = (2z + 3) and b = (6z – 1), h = z

Therefore ;

1/2 (2z + 3 + 6z - 1) × z

Opening the bracket

(z + 1.5 + 3z - 0.5) × z

(4z + 1 ) × z = 20cm^2

4z^2 + z = 20cm^2

Using Quadratic formula:

4z^2 + z - 20 = 0

a = 4, b = 1, c = - 20

(-b±√b^2 -4ac) / 2a

Z = 2.11 or - 2.364

z cannot be negative, therefore,

Z = 2.11 cm

6 0
2 years ago
Does this graph represent a proportional relationship?<br> Explain.
Ugo [173]
ANSWER: no

EXPLAIN: because a proportional relationship graph would have a straight line running through the origin
4 0
3 years ago
A path 2.5m wide is running outside a square field whose side is 45m. Determine the area of the path.
aliya0001 [1]

Answer:

The area of the path would be 231.25 squared meters.

Step-by-step explanation:

Consider the path as 45m (the field's area), then add 2.5m to all of the sides. You'll get 47.5m on all sides. Then you do 47.5² to get 2256.25 squared meters. After that, you'll remove the area of the squared field. To do this, do 45m². By doing this, you'll get 2025 squared meters. Lastly, to finish up the question, do 2256.25 - 2025. This would get you 31.25 squared meters, the answer.

4 0
3 years ago
Last year a buisness had profits of 8000 this year its profits are 5 times as great what are this years profits
Mekhanik [1.2K]
If it’s 5 times you would multiply 8000 x 5 which is 40,000.
7 0
3 years ago
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