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3 years ago

Which of the following fractions will not have a repeating decimal?

Mathematics

2 answers:

hoa [83]3 years ago

4 0

4/5, because to simplify a decimal, you can divide the numerator by the denominator. 4 divided by 5 is 0.8

EleoNora [17]3 years ago

4 0

Answer:

4/5

Step-by-step explanation:

4/5 = 0.8

1/7 = 0.14285714

17/13 = 1.30769231

19/6 = 3.16666667

Hope this helps! In order to convert a fraction to a decimal, you just divide the numerator by the denominator. :)

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What is the solution to the equation 3 + = 4? y = y = y = 1 y = 4

kvv77 [185]

Answer:

y = 1

Step-by-step explanation:

3 + y = 4

y = 1

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3 years ago

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Please help! An archway will be constructed over a walkway. A piece of wood will need to be curved to match a parabola. Explain

Gwar [14]

draw a perpendicular line from the directrix passing through the focus, this will be the line of symmetry. The vertex(h, k) will be located on the line half way between the focus and directrix. The distance from the focus to the vertex is called the focal length, call it a. The then equation is (x - h)^2 = 4a(y - k) the equation can be manipulated to y = 1/4a(x - h)^2 + k hope it helps

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3 years ago

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A building is 200 feet long. The length of the building on a scale diagram is 2 feet 6 inches. What is the height of the buildin

mafiozo [28]

Answer:

200 feet to 2 ft 6 inches (or 30 inches)

Convert the 200 feet to inches

2400 inches.

2400 divided by 30 inches is

80 inches per feet

600 inches divided by 80 is

7.5 inches rounded up is 8 inches

the answer is 8 inches

Step-by-step explanation:

3 0

3 years ago

The total cost (in hundreds of dollars) to produce x units of a product is c(x) = (3x-2) / (8x+1), find the average cost for eac

olya-2409 [2.1K]

Answer:

a) $\frac{74}{10025}$

b) $\frac{3x-2}{x(8x+1)}$

c) $\frac{-24x^2+32x-2}{(8x^2+x)^2}$

Step-by-step explanation:

For total cost function $c(x)$ , average cost is given by $\frac{c(x)}{x}$ i.e., total cost divided by number of units produced.

Marginal average cost function refers to derivative of the average cost function i.e., $\left ( \frac{c(x)}{x} \right )'$

Given: $c(x)=\frac{3x-2}{8x+1}$

Average cost = $\frac{c(x)}{x}=\frac{3x-2}{x(8x+1)}$

At x = 50 units,

$\frac{c(50)}{50}=\frac{150-2}{50(400+1)}=\frac{148}{50(401)}=\frac{74}{10025}$

Average cost = $\frac{c(x)}{x}=\frac{3x-2}{x(8x+1)}$

Marginal average cost:

Differentiate average cost with respect to $x$

Take $f=3x-2\,,\,g=8x^2+x$

using quotient rule, $\left ( \frac{f}{g} \right )'=\frac{f'g-fg'}{g^2}$

Therefore,

$\left ( \frac{c(x)}{x} \right )'=\left ( \frac{3x-2}{8x^2+x} \right )'\\=\left ( \frac{3(8x^2+x)-(16x+1)(3x-2)}{(8x^2+x)^2} \right )\\=\frac{24x^2+3x-48x^2-3x+32x+2}{(8x^2+x)^2}\\=\frac{-24x^2+32x-2}{(8x^2+x)^2}$

3 0

3 years ago

There is a spinner with 13 equal areas, numbered 1 through 13. If the spinner is spun one time, what is the probability that the

irina [24]

Answer:

0.06

Step-by-step explanation:

probability of multiple of 6= 0.2

probability of multiple of 4= 0.3

0.2 * 0.3 = 0.06

7 0

2 years ago