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satela [25.4K]
3 years ago
7

What is the geometric mean of 6 and 9

Mathematics
2 answers:
Dmitry [639]3 years ago
4 0
6+9=15
15 Divided by 2=7.5
Therefore your answer will be 7.5
Dvinal [7]3 years ago
3 0
The geometric mean is the central number in a geometric progression. It is calculated as the nth root of the product of n numbers. So, for this case, the geometric mean is calculated as:√(7 x 9) = 3√7

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A rectangle has a length of 45 inches less than 4 times its width. if the area of the rectangle is 3325 square inches, find the
Maru [420]

The length of the rectangle is based on its width, so let's call width w and put the length in terms of the width. We are told that the width is 45 less than 4 times the width, so the length is 4w - 45. Area is found by multiplying length times width and we are given the area as 3325. So we will set up length times width and solve for w, which we will then use to solve for l. 3325 = (4w - 45)(w). Multiplying out we have 3325=4w^2-45w. Move the constant over by subtraction and then we will have a quadratic that can be factored to solve for w. 4w^2-45w-3325=0. We would put that through the quadratic formula to solve for w. When we do that we get that w = 35 and w = -23.75. The 2 things in math that will never EVER be negative is time and distance/length, so -23.75 is out. That means that the width is 35. The length is 4(35) - 45 which is 95. The dimensions of your rectangle are length is 95 and width is 35. There you go!

8 0
2 years ago
Given: 3x < -6.
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3x < -6
x < -6/3
x < -2
Therefore, the solution set is {x | x < -2}.
3 0
3 years ago
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If you want to buy an item in a store that costs $25 an is on sale for 10% off
kumpel [21]

Answer:

2.50$ off or 22.50$

Step-by-step explanation:

8 0
2 years ago
Carlos walked to school on 14 of the 20 school days in February
Kruka [31]
70% all you have to do is divide the 14 by 20
5 0
3 years ago
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Kari bought 3 boxes of cookies to share with a book club. Each box contains 12 cookies. The expression represents the number of
ivanzaharov [21]

<u>ANSWER:</u>

Kari bought 3 boxes of cookies to share. The algebraic expression is \frac{36}{x}

<u>Solution:</u>

Given, Kari bought 3 boxes of cookies to share with a book club.  

Each box contains 12 cookies.  

So, in total we have 3 x 12 cookies = 36 cookies.

Now, we have to find how many cookies can each person p will get.

Let, the total number of persons be x.

Then, after equally sharing the cookies,

\text { Number of cookies with each person }=\frac{\text {number } of \text { cookies available.}}{\text {total number of persons}}

=\frac{36}{x} \text { cookies. }

Hence, the algebraic expression is \frac{36}{x}

7 0
3 years ago
Read 2 more answers
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