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3 years ago

15

Explain how you could write 1/5 miles as a fraction with 10 in the denominator. A fraction with 100 in the denominator, and as a

decimal?
Explain= 10 points

1 answer:

Illusion [34]3 years ago

8 0

2/10 20/100 Times 1/5 by 2 on both sidez and then times that by ten to get the second answer

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13. Which of the following is the graph of y = 3(1⁄5)x?

Fittoniya [83]

Answer:

Second graph

Step-by-step explanation:

The second graph is the correct one. Why? because the y intercept is (0, 3), and also because the base, 1/5, is between 0 and 1, which leads to a decaying exponential graph.

6 0

3 years ago

If 40% of the total population of a particular town of 2500 are HIV positive. How many people are HIV negative.

katovenus [111]

Answer:

1500 people

Step-by-step explanation:

Since 40% are HIV positive (that's a lot of people), 60% will be HIV negative. All you have to do is find 60% of 2500.

60% of 2500 = 0.6 * 2500 = 6 * 250 = 1500

Hope this helps!

5 0

3 years ago

Use Laplace transform methods to solve the differential equation: The initial conditions are f(0) = 0 and <img src="https://tex.

Llana [10]

Answer:

Step-by-step explanation:

$\frac{d^2 y}{dt^2} +12\frac{dy}{dt} +32y = 10e^{-2t}$ where f(x) is replaced by y

Take Laplace on both sides

$s^2 Y -s(0)-0 +12s Y-0+32Y = \frac{10}{s+2} \\Y(s^2+12s+32) = \frac{10}{s+2}\\Y = \frac{10}{(s+2)(s+4)(s+8)}$

We can resolve into partial fraction to get Y = L(y)

Let this equals

$\frac{A}{s+2} +\frac{B}{s+4} +\frac{C}{s+8} \\10 = A(s+4)(s+8) + B(s+2)(s+8) +Cs+4)(s+2) \\$

Solving we get

s=-9

24C = 10 or C =5/12

s=-2: A=10/12=5/6

s=-4: B = -5/4

Taking inverse Laplace

$y(t) = \frac{-5e^{-4t} }{4} + \frac{5e^{-8t} }{12} +\frac{-5e^{-2t} }{6}$

6 0

3 years ago

Evaluate this expression when a=9

OlgaM077 [116]

Answer:

63

Step-by-step explanation:

a=9

7a

7(9)

63

6 0

3 years ago

12 divided into a number is wat

Irina-Kira [14]

Answer:

x

Step-by-step explanation:

3 0

3 years ago

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