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3 years ago

13

what is the probability of flipping a coin 10 times and getting tails8 times? Round your answer to the nearest tenth of a percen

t

1 answer:

slava [35]3 years ago

4 0

The answer is 8/10 and that simplified is 4/5

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The ratio of two numbers is 2/3. The sum of the numbers is 105. What are the two numbers?

brilliants [131]

42 and 63 both are at the rate of 2 to 3 and they add up to 105

7 0

3 years ago

4. Communicate Precisely When you graph a quadratic function, the

AleksandrR [38]

Answer:

solo respondo esto por los puntos

3 0

3 years ago

How do you solve this

fiasKO [112]

(((x + y) / 3) + (1 / x)) / (5 + (15 / x))
The best way is to make it one fraction.
Multiply by ((3x/3x) / (3x/3x)) to remove the other fractions.
((x(x + y)) + 3(1)) / (5(3x) + 3(15))
(x^2 + xy + 3) / (15x + 45)
Then factor to simplify
(x^2 + xy + 3) / (3(x + 15))

4 0

3 years ago

2. help now!!!!!!!! A certain TV costs $599.99 at Best Buy. On black Friday, it is on sale for 40% off. What is the price of the

Arturiano [62]

Answer:

$360. (I believe so, anyways.)

Step-by-step explanation:

Original Price x Discount % / 100

Discount = 600 × 40/100

24000/100

$600 - $240

Final Price = $360

8 0

3 years ago

What is the area of a triangle with vertices (3,0) (9,0) (7,6)

Nezavi [6.7K]

Answer:

The area of the triangle is of 21 units of area.

Step-by-step explanation:

The area of a triangle with three vertices $(x_1,y_1),(x_2,y_2),(x_3,y_3)$ is given by the determinant of the following matrix:

$A = \pm 0.5 \left|\begin{array}{ccc}x_1&y_1&1\\x_2&y_2&1\\1_3&y_3&1\end{array}\right|$

In this question:

Vertices (3,0) (9,0) (7,6). So

$A = \pm 0.5 \left|\begin{array}{ccc}3&0&1\\9&0&1\\7&7&1\end{array}\right|$

$A = \pm 0.5(3*0*1+0*1*7+1*9*7-0*7*1-0*9*1-3*1*7)$

$A = \pm 0.5*(63-21)$

$A = \pm 0.5*42 = 21$

The area of the triangle is of 21 units of area.

5 0

3 years ago