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Stolb23 [73]
3 years ago
7

Find the geometric mean of 7 and 9

Mathematics
1 answer:
charle [14.2K]3 years ago
3 0

Answer:

\large\boxed{3\sqrt7}

Step-by-step explanation:

\text{Geometric mean:}\\\\\underbrace{\sqrt[n]{a_1\cdot a_2\cdot a_3\cdot...\cdot a_n}}_n\\\\\sqrt{7\cdot9}=\sqrt{9}\cdot\sqty7=3\sqrt7

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4. Al restar 5 x ᶺ 2 – 8 x + 9 con – 9 + 16 x – 25 x ᶺ 2 se obtiene como resultado (Procedimiento)
Ierofanga [76]

Step-by-step explanation:

SE RESTAN ENTRE LOS NÚMEROS QUE TIENEN LA MISMA VARIAVLE.

(5x^{2} + 25x^{2}) - (8x - 16x) + (9 + 9) = 30x^{2} - 24x + 18

4 0
3 years ago
144 students enter a spelling bee, but only 1/6 of the group will make into the semi-final round, and only 2 /3​ that group will
DerKrebs [107]

Answer:

16 students

Step-by-step explanation:

144 students enter a spelling bee contest.

Step 1

For the semi final round we are told that only 1/6 of the group will make it into that round.

This is calculated as

1/6 × 144/students = 24 students.

This means that only 24 students would make it into the semi final rounds.

Step 2

We are also told in the question that only 2/3 of THAT group would make it into the final round.

" THAT" group been referred to in the question means the number students that made it to the semi final round

This is calculated as

2/3 of that group( the group that made it to the semi finals)

= 2/3 × 24 students

= 16 students.

Therefore, the number of students that will enter the final round of the spelling bee is 16 students.

6 0
3 years ago
What is the variable to 3x-5 ​
Vlad1618 [11]

Answer:

3 (2x + 3) + 11 = –2 (2x - 6) - 18

6 0
3 years ago
Read 2 more answers
Find the length of side c of a triangle if side a = 15 and side b = 20. A. 25 B. 17.5 C. 20 D. 15
likoan [24]

If one side of a triangle is 15 and another side is 20, then the third side
can be any length between 5 and 35. There are an infinite number of
possible triangles.

IF it happens to be a RIGHT triangle AND side 'a' and side 'b' happen
to be its legs, then the length of the third side is 25.  But you didn't
mention any of those details. 

4 0
4 years ago
A basketball player is fouled while attempting to make a basket and receives two free throws. The opposing coach believes there
vladimir1956 [14]

Answer: i cant draw A here but B is 84%

Step-by-step explanation:

30%+54%=84% (i think)

7 0
3 years ago
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