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Eduardwww [97]
3 years ago
6

Please Help Calculate!!!

Mathematics
1 answer:
Darina [25.2K]3 years ago
4 0

Answer:

1) 35

2) 1.51937984

Step-by-step explanation:

\frac{4/\frac{4}{7}•0.3}{2.88 ÷ 4.8}

\frac{21}{0.6}

21 ÷ 0.6

35

\frac{0.5 + \frac{1}{18}}{(1\frac{1}{6}-\frac{7}{18}}÷2.8

\frac{\frac{5}{9} }{0.36564625}

\frac{5}{9}÷0.36564625

1.51937984

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A circle's area is directly proportional to its radius squared.
motikmotik

9514 1404 393

Answer:

  3.14

Step-by-step explanation:

The formula for the area of a circle is ...

  A = πr²

The constant of proportionality is the constant in this equation: π. To two decimal places, the value of π is 3.14.

The constant of proportionality is about 3.14.

5 0
2 years ago
A table is 3 feet and 2 inches wide, and a chair is 25 inches wide. How much wider is the table than the chair?
slega [8]

Answer:

The table is 13 inches wider than the chair.

Step-by-step explanation:

A table is 3 feet and 2 inches wide

since there are 12 inches in one feet

= 3(12) + 2

=36+2

=48 inches

a chair is 25 inches wide

so..

38 - 25 = 13 inches

6 0
3 years ago
Write a linear equation to represent this
Elena L [17]
I think is Y=5x+20
Hope you get it right!
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3 0
2 years ago
Solve the following non-linear system of equations algebraically.
ExtremeBDS [4]

Answer:

x = -2

Step-by-step explanation:

since y is common in both equations, you can equate them to be equal

-2x² - 4x + 5 = 2x² + 4x + 5

4x² + 8x = 0

factor out 4x

4x(x + 2) = 0

divide both sides by 4x

x + 2 = 0

x = -2

6 0
3 years ago
Assume that the weight loss for the first month of a diet program varies between 6 pounds and 14 pounds, and is spread evenly ov
Llana [10]

Hello!

For this uniform distribution, the shape of the density function is a line. We can begin by identifying key elements of the distribution:

Range: 6 to 14 pounds

Formula of density function:

y = 1/Range

1 - (14 - 6) = 1/8 = 0.125

f(x) = 0.125

1)

P(x = 7)

A uniform distribution is a continuous distribution, so the probability of x being an EXACT value is approximately 0.

<u>This is the same as if we took the following integral. (Finding the area under a curve with the same start and end point)</u>
\int\limits^a_a {f(x)} \, dx  = 0

Therefore, P(x = 7) = 0.

2)
We can think of this as finding the area of a rectangle.

The width would be the difference between 8.25 pounds and 12 pounds:
W = 12 - 8.25 = 3.75

The height would be the function (y = .125), or:
h = .125

Using the equation for the area of a rectangle: (A = h * w)

A = 3.75 * .125 = 0.469

Thus, P(8.25 < x < 12) = 0.469

3)
To find the probability GREATER than 10.50 pounds, we can subtract this value from the max value for the width:
W = 14 - 10.50 = 3.50

The height is the same as above:
h = .125

Solve for the area:
A = 3.50 * .125 = 0.4375

P(x > 10.5) = 0.4375

5 0
2 years ago
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