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defon
2 years ago
14

D Answer each question.

Mathematics
1 answer:
nika2105 [10]2 years ago
6 0

Answer:

Step-by-step explanation:

1. Humans can detect sounds in a frequency range from about 20 Hz to 20 kHz.

2. speed of sound is 343 m/sec.

3. two animals are Bats and Whales.

4.The voiced speech of a typical adult male will have a fundamental frequency from 85 to 180 Hz, and that of a typical adult female from 165 to 255 Hz.

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In one week Molly ate 5 ice cream sandwich and torry ate n icee cream sandwiches. They ate a total of 12 ice cream all together.
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We know that the problem statement states that the number of ice cream sandwiches eaten together by Molly and Torry is 12.

Since Molly ate 5 and Torry ate n ice cream sandwiches, we can represent this in the equation below...

5 + n = 12
4 0
3 years ago
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A NASA mathematician used a system of equations to determine the point in space where a satellite crossed paths with a massive p
nikitadnepr [17]

Answer:

Option D.

3 equations with 3 variables

Step-by-step explanation:

The coordinates of a point in space must necessarily have 3 components. One to describe the distance on the x axis, another to describe the distance on the y axis to the point, and a third to describe the distance on the z axis.

If we have three variables, then 3 equations are needed to solve the system. With less than 3 equations it would be impossible to solver the system.

Therefore the correct answer is option D.

3 equations with 3 variables

8 0
3 years ago
Use intercepts to graph 3y = -5x -30
disa [49]
The final solution is y=-5/3x-10
3 0
3 years ago
Put y+7=1/2(x+2) in standard form <br> Standard form: Ax+By=C
My name is Ann [436]
y+7=\frac{1}{2}(x+2)\ \ \ \ |multiply\ both\ sides\ by\ 2\\\\2y+14=x+2\ \ \  \ |subtract\ x\ and\ 2\ from\ both\ sides\\\\-x+2y+14-2=0\\\\-x+2y+12=0\ \ \ \ \ |change\ signs\\\\\boxed{x-2y-12=0}
4 0
3 years ago
a medication prescription states 1/4 tablet twice a day per 20kg the peson weight is 211 pounds. how many tablets should be take
Black_prince [1.1K]
<h2>Hello!</h2>

The answer is: 1.187 tablets each time (twice a day)

<h2>Why?</h2>

From the statement we know that 0.25 tablet (1/4) should be taken twice a day per 20 kg, it makes 0.5 table a day, per 20 kg.

First, we need to convert the given weight unit (pounds) to kg:

1 Pound=0.45Kg

So,

211Pounds*\frac{0.45Kg}{1Pound}= 94.95Kg=95Kg

A weight of 95 Kg, means 4.75 times more than the given information of 0.5 table a day, per 20 Kg

\frac{95Kg}{20Kg}=4.75

Then,

4.75*(0.5)=2.375

So,

For a weight of 95 Kg,  2.375  tablets should be taken a day, or 1.187  tablets each time.

Have a nice day!

6 0
3 years ago
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