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azamat
3 years ago
6

A radio disc jockey has

Mathematics
2 answers:
vovikov84 [41]3 years ago
8 0
The answer is 1 / 28
Ierofanga [76]3 years ago
3 0
4 rock, 2 reggae, 2 country...total of 8

P(1st song is reggae) = 2/8 which reduces to 1/4
P(2nd song is reggae) = 1/7

P(both events happening) : 1/4 * 1/7 = 1/28
You might be interested in
Show the work please.
sladkih [1.3K]

In any given right triangle, the Pythagorean Theorem can be used to show that it is a right triangle.

The Pythagorean Theorem is a^2+b^2=c^2. In a right triangle, a and b would be the shorter legs of the triangle, while c would be the hypotenuse.

So for this problem, you would plug in the numbers in the order that they are listed to see if it is a right triangle.

F would be: 2^2+4^2=7^2. In this case, the sides are not equal.

G would be: 6^2+8^2=10^2. In this case, 100=100. So this is a right triangle.

H would be: 4^2+9^2=12^2. The sides are not equal.

J would be: 5^2+10^2=15^2. The sides are not equal.

Your answer would be G, since the sides are equal. Hope this helps! :)

3 0
3 years ago
Calculate the distance from each given point to the given line.
antoniya [11.8K]
Given:  <span>2x-y-3=0.
find </span>equation for the line perpendicular to the given line that goes through the given point:<span>
(2;-1)koord of direction vector (i`m not know how it is called at you, because i'm from russia)</span><span>
=> (x-0)/2=(y-4)/-1 (</span>canonical <span>equation)
=>x+2y-8=0(general </span><span>equation)
</span>
<span>further:
{x+2y-8=0
{2x-y-3 =0    =>   y=13/5 x=14/5

(14/5; 13/5) - koord point on line
</span>|dist|=sqrt( (14/5-0)^2 + (13/5-4)^2 ) = sqtr(7.72)  = 2.78

Удачи!
<span>
. </span>











7 0
3 years ago
Read 2 more answers
Find the common denominator 2/7 and 7/10
deff fn [24]

Answer:

70

Step-by-step explanation:

Finding the common denominator is really just finding the gcf of 7 and 10. The gcf of 7 and 10 is 70. So the common denominator is 70.

5 0
3 years ago
What is the third quartile of the given data set?<br><br> {2, 5 ,6, 7, 15, 16, 17}
Tanya [424]
Series = <span>{2, 5 ,6, 7, 15, 16, 17}

Here, Median = 7

Then Q3 = </span><span>{15, 16, 17}
Median of Q3 = 16

In short, Your Answer would be: 16

Hope this helps!</span>
5 0
3 years ago
Is 3x+4y a polynomial. is it is a polynomial, state the degree of the polynomial.
Svetlanka [38]

Yes, this is a polynomial. It is an expression containing variables raised to a real number.

In this case, the variables are being raised to the power of one.

The degree of this polynomial, thus, is one.

5 0
3 years ago
Read 2 more answers
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