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KiRa [710]
3 years ago
11

Suppose that 40% of households use their cell phones for their home phone. If 12 households are randomly selected, what is the p

robability that at least three use their cell phones
Mathematics
1 answer:
Vesna [10]3 years ago
4 0

Answer:

0.917

Step-by-step explanation:

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What is the measure of e?
ValentinkaMS [17]

Answer:

\theta = 4~radians

Step-by-step explanation:

s = \theta r

20~cm = \theta \times 5~cm

\theta = 4~radians

4 0
3 years ago
Attract me 7 gallons of fuel to travel 56 miles can the truck travel 48 miles with 6 gallons of fuel explain
ANTONII [103]
You Need 7 Gallons Of Fuel For The Truck
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3 years ago
A truck driver starts with a full tank of 150 gallons of gas. She uses 70 gallons on a trip. When she leaves for her next trip,
Grace [21]

150 is the answer that will be correct

8 0
2 years ago
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Train tracks are made of metal. Consequently, they expand when it's warm and shrink when it's cold. When riding in a train, you
Nadya [2.5K]

The height of the triangle that forms the train track is 145,38 ft

<h3>How to calculate the height of the triangle?</h3>

To calculate the height of the triangle we must take into account the information provided by

  • Base of the triangle = 1 mile = 5280 feet
  • Railroad track expansion = 8 feet

According to the above, we must perform the following operations:

  • 5280 ÷ 2 = 2640
  • 8 ÷ 2 = 4
  • 2640 + 4 = 2644

Subsequently, we must apply the Pythagorean theorem to find the height of the triangle having 2 data:

  • Base: 2640ft
  • Hypotenuse: 2644 ft

  • 2644² = x² + 2640²
  • x² = 2644² - 2640²
  • x = \sqrt[2]{2644^{2} + 2640^{2}}.
  • x = \sqrt[2]{21137}
  • x = 145,38 ft

That makes x approximately 145,38 ft.

Learn more about triangles in: brainly.com/question/2269348

4 0
2 years ago
Situation: You want to buy three books that are on sale at 20% off. The original prices of the books are $2.50, $4.95, and $6.00
frozen [14]

Answer:

$2.69

Step-by-step explanation:

Distribution method:

.20(2.50, 4.95, 6.00)

(0.50, 0.99, 1.20)

Now add them up.

Non-distribution method:

$2.50 x .20 = 0.50

$4.95 x .20 = 0.99

$6.00 x .20 = 1.20

Add them up

6 0
3 years ago
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