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svet-max [94.6K]
2 years ago
5

Can you answer my question please and thank you

Mathematics
2 answers:
aksik [14]2 years ago
8 0

Answer:   12

Step-by-step explanation:

To find a length of a right triangle, we can use Pythagorean theory:

            leg² + leg² = hypotenuse²              

                  5² + b² = 13²

                 25 + b² = 169

                          b² = 144

                            b = \sqrt{144}

                             b = 12

KIM [24]2 years ago
4 0

Answer:

b = 12

Step-by-step explanation:

since a² + b² = c²

we can find b by pythagorean theorem.

sqrt(13² - 5²) = b

hence,

b = 12

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T stands for time

Step-by-step explanation:

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4 years ago
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Andru [333]

Answer:

He needs 7 more consecutive successful first serves to raise his first serve percentage to 60%.

Step-by-step explanation:

After n consecutive serves, his total number of serves is going to be n+8, since he has already served 8 times. In the best case, his number of successful first serves is n+2.

His percentage of succesful first serves is the division of the number of succesful first serves divided by the total number of serves. So

P = \frac{n+2}{n+8}

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He needs 7 more consecutive successful first serves to raise his first serve percentage to 60%.

5 0
3 years ago
2
LenKa [72]
I'm going to take a guess regarding what you meant to type in:

<span>3x-9 X +6x+5
E(x)= ------- × -------------
2 2
X -9 X +5x+6

                            3(x+3)        6x+5
becomes  E(x) = ----------- * ------------
                             x-9             5x+6

This cannot be reduced.

Try again to share this problem.  Thank you.

</span>
7 0
4 years ago
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olga_2 [115]
12/10 = 1 2/10 or 1 1/5

15/6 = 2 3/6 or 2 1/2.

To turn these fractions into mixed numbers you have to see how much times the denominator can go into the numerator and the amount of numbers left over. For 12/10, 10 can go into 12 1 time, so the whole number is 1. There is 2 numbers left over, so the numerator is 2 and you do not have to change the denominator. To simplify, divide the numerator and denominator by the highest number it can be divided to
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Please help me I’ll appreciate smmm
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Answer:

I say it is a. (A)

Step-by-step explanation:

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4 years ago
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