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andre [41]
3 years ago
13

If 21% of males and 15% of females in a given state play the guitar, what is the probability that a randomly selected subject in

the state plays the guitar, given that the subject is male?
Mathematics
1 answer:
Lisa [10]3 years ago
8 0

Answer:

Okayyyy so we’re hopping down th 45.

Step-by-step explanation:

For the me 39 me fo May the

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Solve the following quadratic equation using the quadratic formula. Which of the following expressions gives the numerators of t
Illusion [34]

I hope the choices for the numerators of the solutions are given.

I am showing the complete work to find the solutions of this equation , it will help you to find an answer of your question based on this solution.

The standard form of a quadratic equation is :

ax² + bx + c = 0

And the quadratic formula is:

x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

So, first step is to compare the given equation with the above equation to get the value of a, b and c.

So, a = 10, b = -19 and c = 6.

Next step is to plug in these values in the above formula. Therefore,

x=\frac{(-19)-\pm\sqrt{(-19)^2-4*10*6}}{2*10}

=\frac{19\pm\sqrt{361-240}}{20}

=\frac{19\pm\sqrt{121}}{20}

=\frac{19\pm11}{20}

So, x=\frac{19-11}{20} ,\frac{19+11}{20}

x=\frac{8}{20} , \frac{30}{20}

So, x= \frac{2}{5} ,\frac{3}{2}

Hope this helps you!

5 0
3 years ago
Read 2 more answers
What is the simplified form of the expression?
zimovet [89]

Answer:

7c^2d-7c+4d-10

Step-by-step explanation:

Start off with the term that has c^2 in it. 5c^2d + 2C = 7c^2d, then since you have multiple choice, the d value differs between the two answer choices that have 7c^2d so you can do +3d +d to get +4d to get the fourth answer choice.

To check your work, you can add/subtract each term to see if you get 7c^2d-7c+4d-10

3 0
4 years ago
Multiplying positive and negative fractions 2/5 times 2/3
Svet_ta [14]

Answer:

\frac{4}{15}

Step-by-step explanation:

I used an online Fraction calculator to check my answer and I got 4/15 both times so you can trust this answer my friend.

Hope this helped you out.

5 0
3 years ago
Jefferson Park sits on one square city block that measures 300ft on each side. Sidewalks join opposite corners. About how long i
Alexxandr [17]
You have a 300 feet side length square and you need to calculate the length of the diagonal. When you split the square along one diagonal you get triangles, so you can apply Pythagoras' Theorem, with the hypotenuse as the needed diagonal.
a²+b²=c²
300²+300²=c²
2*300²=c²
√(2*300²)=c
√(2) * √(300²)=c
√(2) * 300=c
c~424.26 ft which is the solution/option c
5 0
3 years ago
It is customary to give a 15% tip for a meal at a restaurant. what is 15% of $64.40
alex41 [277]

Answer:

$9.66 isb15% of $64.40

Step-by-step explanation:

64.40×15%

7 0
2 years ago
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