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3 years ago

13

A standard die is rolled. Calculate the following probabilities. Express your answer as a fraction in lowest terms. a) The numbe

r rolled is greater than 3. b) The number rolled is less than or equal to 3. C) The number rolled is a 6. Answer How to Enter 9 Points Keypad

1 answer:

saul85 [17]3 years ago

4 0

A).1/2(4,5,6)

B).1/2(1,2,3)

C).1/6(6)

Can I get brainliest please?

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The ages of commercial aircraft are normally distributed with a mean of 13.5 years and a standard deviation of 7.3 years. what p

Artist 52 [7]

Answer: The percent higher is 41.68%. If 49 planes were selected, 20 of them should be above 15 years.

To find the percent, we first need the z-score.

(15 - 13.5) / 7.3 = 0.21

Now, use a normal distribution table to find the percent above a score of 0.21. It will be 41.68%.

To find the number of 49 planes above this value, multiply 49 by 0.4168. You will have about 20.4 planes.

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3 years ago

More points also what is 2x3+4x6x8+9

-Dominant- [34]

Answer:

the answer is 207

Step-by-step explanation:

using bodmas

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3 years ago

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The width of a rectangle is 6n - 2.5 feet and the length is 2.5 + 8 feet. Find the perimeter of the rectangle.

ludmilkaskok [199]

I was thinking the measurement for ;length should be 2.5n + 8 feet since width is 6n -2.5 feet , but you gave 2.5+ 8 feet, so i will solve it in both ways

Answer: Perimeter = 5 + 12n + 11 feet ; Perimeter = 17n+ 11 feet

Step-by-step explanation:

Using Length = 2.5+ 8 feet,

Perimeter of a rectangle is calculated as 2( l+ b)

Given that width=6n - 2.5 feet

length =2.5 + 8 feet

Perimeter =2( l+ b)= 2L + 2B

Perimeter= 2(2.5 + 8feet ) + 2( 6n - 2.5 feet)

Perimeter = 5 + 16feet + 12n - 5feet

Perimeter = 5 + 12n + 11 feet

Using Length = 2.5n+ 8 feet,

Perimeter of a rectangle is calculated as 2( l+ b)

Given that width=6n - 2.5 feet

length =2.5n+ 8 feet

Perimeter =2( l+ b)= 2L + 2B

Perimeter= 2(2.5n + 8feet ) + 2( 6n - 2.5 feet)

Perimeter = 5n + 16feet + 12n - 5feet

Perimeter = 5n + 12n + 11 feet

Perimeter = 17n+ 11 feet

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3 years ago

The roots of a quadratic function are x = -3 and x = 2/3. Which of the following would be the constant term of the equation in s

Alla [95]

Answer:

-2

Step-by-step explanation:

Since the roots are known and the function is a quadratic function, we can write down the function:

y = (x+3)(x-2/3) since when the roots are plugged in, the function gives 0.

Standard form means that the function has to be expanded:

y = (x+3)(x-2/3) = $x^{2}+3x - 2x/3 - 3*2/3$

y = $x^{2}+ 7x/3 - 2$

The constant term is -2.

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3 years ago

What is 121,580 rounded to the nearest thousand?

AfilCa [17]

$121,580\approx122,000$

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3 years ago

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