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4 years ago

6 divided by 2 (1+2) = ?

Mathematics

1 answer:

labwork [276]4 years ago

5 0

Answer:

6/2 (1+2) = 9

Step-by-step explanation:

6/2 (1+2)

Order of operations PEMDAS

Parentheses first 6/2(3)

Multiplication and division go left to right

3(3)=9

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The useful life of an electrical component is exponentially distributed with a mean of 1000 hours a. What is the probability the

julia-pushkina [17]

Answer:

0.865

Step-by-step explanation:

To solve for the probability we would be using the formula:

F(x) = 1 - e^−λx

Therefore, P(x > 2000) = F(x) = 1 - e^−λx

Mean = 1000 hours

λ = 1/mean = 1/1000 hours

x= 2000 hours

F(x) = 1 - e^−(1/1000)2000

F(x) = 1 - e^−2

= 0.8646647168

Therefore, the probability the the circuit will last at least 2000 hours = 0.865

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3 years ago

36 inches/second = yards/minute How many yards?

gulaghasi [49]

Answer:

1 yard

Step-by-step explanation:

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3 years ago

The area of a triangle varies jointly with the lengths of its base and height. A triangle with a base of 10 ft and a height of 4

Assoli18 [71]

Answer:

<h2>12 square ft </h2>

Step-by-step explanation:

<h3>base = 3ft. and height = 8ft. </h3><h3>area of triangle = 1/2 ×base × height</h3><h3> = 1/2 ×3 × 8</h3><h3> = 24 /2</h3><h3> = 12 square ft. </h3>

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3 0

3 years ago

A middle school campus is shaped like a rectangle with a width of 1/4 mile and a length of 1/2 mile. A map of the campus has a w

igomit [66]

Answer:

A) 1:4

Step-by-step explanation:

#We first calculate the campus' area:

$a=lw\\\\=\frac{1}{4}\times \frac{1}{2}\\=0.125 \ mi^2$

#We then calculate the campus' map area in square ft:

$A=lw\\\\=0.5 \times 1\\\\=0.5 ft^2$

Ratio is a comparison between two dimensions:

$Ratio=\frac{0.125}{0.5}\\\\=0.25\\\\=\frac{1}{4}\\\\=1:4$

Hence, the ratio of the area in square miles of the campus to the area in square feet of the map is 1:4

3 0

3 years ago

5x + 4m = 43my + 6 solve for m

pav-90 [236]

9514 1404 393

Answer:

m = (5x -6)/(43y -4)

Step-by-step explanation:

Subtract 4m+6 to separate m-terms from other terms.

5x +4m -(4m +6) = 43my +6 -(4m +6)

5x -6 = 43my -4m

5x -6 = m(43y -4) . . . . factor out m

(5x -6)/(43y -4) = m . . . . divide by the coefficient of m

7 0

3 years ago