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victus00 [196]
3 years ago
14

Marianne collects coffee mugs from places she visits when she goes on vacation. She displays her 87 coffee mugs over her cabinet

s in her kitchen, including 8 mugs from Texas, 4 from Georgia, 4 from SC and 8 from California. If one of the coffee mugs accidentally falls to the ground and breaks, what is the probability that it is a California coffee mug?
A. 8/87
B. 4/87
C. 4/39
D. 1/13
Mathematics
1 answer:
lozanna [386]3 years ago
4 0
So the probability of it being California a
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A factory produce bicycles at a rate of 110+0.5t^2-0.9t bicycles per week (t in weeks)
klasskru [66]

Answer:

221

Step-by-step explanation:

Day 8 is the first day of the second week.

Day 21 is the last day of week 3.

We need to know the n umber of bicycles made from t = 1 to t = 3

The function is b(t) = 110 + 0.5t^2 - 0.9t, where t is in weeks.

We need to integrate the function with the limits of 1 to 3.

\int_{1}^{3} (110 + 0.5t^2 - 0.9t) dt

\int_{1}^{3} (110 + \dfrac{t^2}{2} - \dfrac{9t}{10}) dt

= 110t + \dfrac{t^3}{6} - \dfrac{9t^2}{20} \Biggr|_{1}^{3}

= 330.45 - 109.72

= 220.7333

Answer: 221

3 0
3 years ago
I need help right now. report cards are coming in soon and i need to get my grades up​
saul85 [17]

Answer:

x = 10

Step-by-step explanation:

3x - 5 = 2x + 5

3x - 5 + 5 = 2x + 5 + 5

3x = 2x + 10

3x - 2x = 2x - 2x + 10

1x = 10

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4 0
3 years ago
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What is 83 times 13?
Alexxx [7]

Answer:

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Step-by-step explanation:

8 0
2 years ago
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How do you find the area of the shaded sector of the circle? The radius is 10in and the sector is 45 degrees
Step2247 [10]

Given:

Radius of the circle = 10 in

Central angle of the sector = 45 degrees

To find:

The area of the sector.

Solution:

Area of a sector is

A=\dfrac{\theta}{360^\circ}\pi r^2

Where, \theta is the central angle in degrees.

Putting r=10 and \theta=45^\circ, we get

A=\dfrac{45^\circ}{360^\circ}\pi (10)^2

A=\dfrac{1}{8}\pi (100)

A=12.5\pi

Therefore, the area of the sector is 12.5π sq. inches.

7 0
3 years ago
Andres playsa soccer video game. He earns 3 stars for every goal hs scores and loses 3/4 stars every time he misses the goal. He
bekas [8.4K]

Answer:

Andres has 12 stars.

Step-by-step explanation:

  • 3 stars - 1 goal
  • -3/4 stars - Missed goal
  • Scored 5
  • Missed 4

3 * 5 = 15

He has 15 stars but then misses 4 goals.

3/4 * 4 = 3

He loses 3 stars becuase he missed 4 goals.

15 - 3 = 12

He ends with 12 stars.

6 0
2 years ago
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