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Stella [2.4K]
3 years ago
15

What is Radical 84/Two radical three

Mathematics
1 answer:
Ainat [17]3 years ago
7 0
Radical 7

radical 84=2 radical 21

radical 21 divided by 2 radical 3 is radical 7
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What is the acceleration of the object in the graph?
aleksandr82 [10.1K]

Answer:

  -0.8 m/s^2

Step-by-step explanation:

Acceleration is the slope of the velocity curve. Here the velocity decreases from 12 m/s to zero in 15 seconds. So, the slope is ...

  (-12 m/s)/(15 s) = -0.8 m/s^2

5 0
4 years ago
What is the function rule for the line?
storchak [24]

Answer:

A

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 3, 0 ) and (x₂, y₂ ) = (0, - 2 ) ← 2 points on the line

m = \frac{-2-0}{0-(-3)} = \frac{-2}{0+3} = - \frac{2}{3}

The line crosses the y- axis at (0, - 2 ) ⇒ c = - 2

f(x) = - \frac{2}{3} x - 2 ← function rule

8 0
3 years ago
Read 2 more answers
Lewis rolls a number cube and then chooses a card from a set of cards numbered 1 through 5. What is the probability that he will
IceJOKER [234]

Answer:

\frac{1}{5}=0.2

Step-by-step explanation:

The general formula for a probability is:

P=\frac{FavorableEvent}{TotalEvents}

The favorable events for the cube to fall in a even number are:

2, 4, and 6 ⇒ <u>3 favorable events</u>

and in the cube the total events are:

1, 2, 3, 4, 5, 6 ⇒ <u>6 total events</u>

So the probability of rolling an even number in the cube is:

P=\frac{3}{6}\\\\\\ P=\frac{1}{2}

Now we do something similar to find the probability to choose a card with an even number.

The favorable events for an even numbered card are:

2, 4 ⇒<u> 2 favorable events</u>

and the total number of events in the cards is:

1, 2, 3, 4, 5 ⇒ <u>5 total events</u>

Thus, the probability to choose an even numbered card (according to the probability formula) is:

P=\frac{2}{5}

And finally, since we want both things to happen we must multiply both obtained probabilities:

  • the probability that he will roll an even number and choose an even numbered card:

P=\frac{1}{2}*\frac{2}{5} \\ \\P=\frac{2}{10} \\\\P=\frac{1}{5} =0.2

The probability is 1/5 which is equal to 0.2 or 20%

3 0
3 years ago
Which equation represent a line parralel to y=4x+1 and passes through (1,7)?
Alecsey [184]

Answer:

y=4x+3

Step-by-step explanation:

3 plus 4 is 7, 0 plus 1 is 1, so yeah, same slope and y-intercept is in a spot so the next point on the line is (1,7)

6 0
3 years ago
Read 2 more answers
Solve the inequality and graph the solution set on a number line 200-4.5x less then equal to 20
rodikova [14]

ANSWER

x \geqslant 40

See graph

EXPLANATION

The given inequality is

200 - 4.5x  \leqslant 20

Group like terms.

- 4.5x \leqslant 20 - 200

- 4.5x \leqslant  - 180

Divide both sides by -4.5 and reverse the sign of the inequality.

x \geqslant   \frac{ - 180}{ - 4.5}

x \geqslant 40

See attachment

3 0
3 years ago
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