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Zanzabum
3 years ago
13

Balance the equation. show all 6 STEPS. 12+v=30

Mathematics
1 answer:
aalyn [17]3 years ago
7 0
I think the answer is 18.
Equation/ steps:

12+v=30
30-12= 18
V=18

Hope this helps!
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In a class of 32 students, 4 have birthdays in October.What percent have October birthdays
natta225 [31]

Answer:

12.5% of students

Step-by-step explanation:

To find this you would divide 4 by 32 (4/32) and get 0.125. To find a percent, you multiply by 100 and get 12.5%

3 0
3 years ago
A person swims 6.4 meters per
pishuonlain [190]

Using the slope concept, it is found that the angle of the swimmer's resultant vector is of 71.83º.

<h3>What is a slope?</h3>
  • The slope is given by the <u>vertical change divided by the horizontal change.</u>
  • It's also the tangent of the <u>angle of depression.</u>

In this problem:

  • The person swims 6.4 meters per second north, hence the vertical change is of 6.4.
  • The person is being pushed by a current moving west at 2.1 meters per second, hence the horizontal change is 2.1.

Then, considering that the slope is the tangent of the angle of depression \theta, which is also the angle of the  swimmer's resultant vector, we have that:

\tan{\theta} = \frac{6.4}{2.1}

\tan{\theta} = 3.04761904762

Using a trigonometric calculator:

\arctan{\tan{\theta}} = \arctan{3.04761904762}

\theta = 71.83^{\circ}

The angle of the swimmer's resultant vector is of 71.83º.

You can learn more about the slope concept at brainly.com/question/26125945

5 0
3 years ago
A 1.5 kilogram lab cart accelerated unitorily from rest to a speed of 2.0 meters per second in 0.50 second What is the magnitude
NISA [10]
Acceleration = (change in speed) / (time for the change)

Change in speed = (speed at the end) minus (speed at the beginning.

The cart's acceleration is

(0 - 2 m/s) / (0.3 sec)

= ( -2 / 0.3 ) (m/s²) = -(6 and 2/3) m/s² .

Newton's second law of motion says

Force = (mass) x (acceleration) .

For this cart: Force = (1.5 kg) x ( - 6-2/3 m/s²)

= ( - 1.5 x 20/3 ) (kg-m/s²)

= - 10 newtons .

The force is negative because it acts opposite to the direction
in which the cart is moving, it causes a negative acceleration,
and it eventually stops the cart.
3 0
3 years ago
Same-sex unions increasingly become heated political issue. the 2006 GSS asked respondents opinions on homosexual relations. fiv
amid [387]

Answer:

Ordinal level

Step-by-step explanation:

The variable of interest is opinion on homosexual relations and the frequency distribution for opinion on homosexual relations is given.

The opinion of people is categorized from wrong to not wrong at all. There exists order in the categorizes and measurement of variable indicates the ordinal level of measurement.

Thus, variable is measured at ordinal level.

8 0
3 years ago
I need help, it is a grade
Rudiy27
Viruses are site articles that contain either DNA or RNA protected by a protein coat. Which statement best susiests why viruses must have host cells to replicate their genetic materials and build new
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