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nevsk [136]
3 years ago
14

Please help me with this word problem

Mathematics
1 answer:
Serhud [2]3 years ago
4 0

Answer:

21 1/3 inches

Step-by-step explanation:

Inverse variation means that when the frequency goes up by a factor of 576/256 = 9/4, the length of the string goes down by a factor that is the inverse of that, 4/9.

4/9·48 inches = 21 1/3 inches

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Write as a unit rate: Four notebooks for $2.50
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Answer:

B. $1.60 per notebook

Step-by-step explanation:

Because:

4 notebooks ÷ $2.50 (4 notebooks cost) = $1.60 per notebook

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3 years ago
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The circumference A of a circle varies directly with its radius. A circle with a radius of 4 has a circumference of about 25.1 i
horsena [70]

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25.1 in.2.

Step-by-step explanation:

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3 years ago
Write the equation in slope-intercept form, then find the slope and the y intercept. Finally draw the graph of the line. 9x+5y=2
Oksi-84 [34.3K]

Answer:

Check explanation.

Step-by-step explanation:

slope-intercept form: y=mx+b

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4 0
3 years ago
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What is the area of this figure?​
Kipish [7]

Answer:

Area is measured in "square" units. The area of a figure is the number of squares required to cover it completely, like tiles on a floor. Area of a square = side times side. Since each side of a square is the same, it can simply be the length of one side squared.

Step-by-step explanation: hope this helps

4 0
3 years ago
The area of the triangle is 42 square inches. find the value of x when a = x and b = (x+8)
damaskus [11]

Answer:

6 and -14

Step-by-step explanation:

Area of the triangle = 1/2 ab

42 = 1/2 (x)(x+8)

42 *2 = x(x+8)

84 = x²+8x

x²+8x-84 = 0

x²+14x-6x-84 = 0

x(x+14)-6(x+14) = 0

x-6 = 0 and x+14 = 0

x = 6 and -14

Hence the values of x are 6 and -14

3 0
2 years ago
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