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2 years ago

I need answers please.

Mathematics

1 answer:

Lena [83]2 years ago

7 0

Answer:

1) 477.5

2) 395.8

3) 2042.0

4)132.7

5) 44.1

6) 437.9

Step-by-step explanation:

Surface area of a cylinder = 2(pi)(r)(h) + 2 (pi)(r)^2

Lateral area of a cylinder = 2 (pi)(r)(r)

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A computer is sold for a certain price and then its value changes exponentially over time.

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the computer loses 50%, percent of its value each year. (Answer)

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2 years ago

What is the value of n in the proportion below n/28 = 4/7

butalik [34]

n is 16

$\frac{n}{28} = \frac{4}{7} \\ n = \frac{4 \times 28}{7} = 16$

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2 years ago

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Which choice is equivalent to the quotient below shown here when x>0?

qwelly [4]

Answer:

Choice B is correct

Step-by-step explanation:

The given radical division can be expressed in the following form;

$\frac{\sqrt{16x^{3} } }{\sqrt{8x} }$

Using the properties of radical division, the expression can be expressed in the following form;

$\sqrt{\frac{16x^{3} }{8x} }=\sqrt{2x^{2} }$

Simplifying further yields;

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Choice B is thus the correct alternative

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Chad earns $4 each day walking his neighbor's dog. He spends $8 purchasing dog treats

Masja [62]

3 days they with both have 4 dollars

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1 year ago

Es urgente ¡¡¡ si la MH de a y 4 es 6 y la MH de 8 y b es 12 calcula la MH de a y b

TiliK225 [7]

Answer:

Sabemos que:

$MH(x, y) = \frac{2xy}{x+y}$

y tenemos que:

$MH (a,4) = \frac{2*a*4}{a+4} = \frac{8*a}{a+4} = 6$

Con esto podemos encontrar el valor de a:

8*a/(a+ 4) = 6

8*a = 6*(a + 4) = 6*a + 24

8a - 6a = 24

2a = 24

a = 24/2 = 12.

Tambien sabemos que:

$MH(8,b) = \frac{2*8*b}{8+b} =\frac{16*b}{8+b} = 12$

Y de ahí podemos despejar b:

(16*b)/(b + 8) = 12

16*b = 12*(b + 8) = 12b + 96

16b - 12b = 96

4b = 96

b = 96/4 = 24

Entonces tenemos a = 12 y b = 24, y el MH de a y b es:

MH(12,24) = 2*12*24/(12 + 24) = 24*24/36 = 16

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2 years ago