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IrinaVladis [17]
4 years ago
10

Plz help need a A!!!!??

Mathematics
2 answers:
Tju [1.3M]4 years ago
6 0
It would be 6. I did it on paper but it would be too long to explain it.


Alona [7]4 years ago
5 0
Spo in dividing fractions u keep chang flip keep the first fraction change division to multiplication then flip 9/3 so neg times a neg is pos  u end up having 72/12 which can be reduced to 6 is is your final amnswer

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If an object is dropped from a height of 200 feet, the function h(t)=-16t^2=200 gives the height of the object after t seconds.
Fed [463]
Hello,
Answer C
h(t)=0=-16t²+200==>t=3.53533...(s)
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3 years ago
The speed of radio waves can be approximated to be 299,790,000 meters per second. The wavelength of a particular radio station’s
azamat

Answer:

f = \frac{299790000 \frac{m}{s}}{3.03 m}= 9890594.06 Hz

And if we convert to megahertz we got:

9890594.06 Hz *\frac{1MHz}{10^6 Hz}= 98.9 MHz

Step-by-step explanation:

For any mechanical wave we have the following general relationship:

v = \lambda f

where:

v represent the speed of the wave = 299790000 m/s

\lambda = 3.03m represent the wavelength for the radio station

f represent the frequency of interest

If we solve for the frequency we got:

f = \frac{v}{\lambda}

And replacing the values we got:

f = \frac{299790000 \frac{m}{s}}{3.03 m}= 9890594.06 Hz

And if we convert to megahertz we got:

9890594.06 Hz *\frac{1MHz}{10^6 Hz}= 98.9 MHz

6 0
3 years ago
what are the pros and cons of each projection? What are the limitations? In which circumstances, environments, or occupations is
Paladinen [302]

What are the projetions?


3 0
4 years ago
Segments AB, DC and Ec intersect at point C. Angel DCE measures 148. Find the value of x.
Anna71 [15]

The image is attached.

Answer:

x = 16°

Step-by-step explanation:

Segment AB, segment DC and segment EC all intersect at point C.

Here, we are told angle DCE measures 148°.

This is a semi-circle, and the total angle of a semi-circle is 180°.

Which means, x+x+148 = 180

Solving for x, we have:

x+x+148 = 180

2x + 148 = 180

2x = 180 - 148

2x = 32

x = \frac{32}{2}

x = 16°

The value of x is 16°

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4 years ago
Tickets for a school play are $9 per person at the door. However, Devon can save $3 per ticket if he buys his tickets ahead of t
DaniilM [7]

Answer:

3n=72

Step-by-step explanation:

3 0
3 years ago
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