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3 years ago

Which of these are characteristics of a scientific law? Select all that apply.

Mathematics

1 answer:

Nata [24]3 years ago

7 0

Answer:

explanation of facts, how nature works, often changes, and will often stay true

Step-by-step explanation:

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Solve: 2x+4y=20 and 2x-y=4

fgiga [73]

Answer:
(x, y) = (18/5, 16/5)
OR
(x, y) = (3.6, 3.2)

4 0

3 years ago

Read 2 more answers

Find the surface area of the cylinder formed by the net. Use 3.14 for π.

sineoko [7]

Answer:

138.16 square feet

Step-by-step explanation:

The surface area of the cylinder consists of one rectangle and two circles.

1. The radius of the circle is 4 ft, then the area of the circle is

$A_{circle}=\pi r^2 =\pi \cdot 4^2 =16\pi \ ft^2$

2. The width of the rectangle is 1.5 ft, the length of the rectangle is the circumference of the circle.

Find the circumference:

$C=2\pi r=2\pi \cdot 4=8\pi \ ft$

Hence,

$A_{rectangle}=1.5\cdot 8\pi =12\pi \ ft^2$

3. The surface area of the cylinder is

$SA=2A_{circle}+A_{rectangle}=\\ \\=2\cdot 16\pi +12\pi =32\pi +12\pi =44\pi \approx \\ \\\approx 44\cdot 3.14=138.16\ ft^2$

8 0

3 years ago

What is the value of the correlation coefficient r of the data set?

Damm [24]

The correlation coefficient r of the data set is <em>-0.28</em>

6 0

2 years ago

Each side of a square sandbox is 36 inches long. What is the area of the sandbox

yuradex [85]

Answer: 1296 inches

Explanation:

Given: Side of sandbox = 36 inches
To Find: Area of sandbox
Area of square sandbox = s*s
= 36*36
= 1,296 inch

Hope it helps you...

7 0

3 years ago

Explain how you would solve 16 / C equals 8 then solve the equation

Fantom [35]

Answer: 2

Step-by-step explanation: you divide 16 by 8 then substitute the number you get for C. 16/8=2 Which means C=2.

3 0

3 years ago