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nydimaria [60]
2 years ago
9

What is the geometric mean of 7 and 11?

Mathematics
1 answer:
agasfer [191]2 years ago
7 0

Def. of Geometric Mean: the nth root of the product of n numbers

The geometric mean of 7 and 11 =  \sqrt{7*11} =8.775\\ (approximated)

Hope that helped!

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Quadrilateral ABCD is inscribed in circle P as shown. Which statement is necessarily true?
DochEvi [55]

Answer:

             B.   m∠A + m∠C = m∠B + m∠D

Step-by-step explanation:

To inscribe a quadrilateral in a circle, the sums of its opposite angles must be equal (each sum of its opposite angles equals 180 °)

8 0
3 years ago
Which point lies on the circle represented by the equation (x + 5)2 + (y − 9)2 = 82?
Virty [35]

Answer:

x = −y+45

Step-by-step explanation:

Step 1: Add -2y to both sides.

Step 2: Add 8 to both sides.

Step 3: Divide both sides by 2.

3 0
3 years ago
My question is 4% of what is 56?
Scrat [10]

<span>4% is the same as 0.04 </span>

<span>so 0.04 x n = 56 where "n" is some number </span>

<span>0.04n = 56 Divide both sides by 0.04 </span>

<span>n = 1400</span>
4 0
3 years ago
What is the inverse of the function f(x) = 2x + 1?
Luda [366]

Answer:

f^{-1}(x)=\frac{1}{2}x-\frac{1}{2} ⇒ answer 1

Step-by-step explanation:

* Lets explain how to find the inverse of a function

- To find the inverse of a function :

# Write y = f(x)

# Switch the x and y

# Solve to find the new y

# The new y is f^{-1}

* Lets solve the problem

∵ f(x) = 2x + 1

- Put y = f(x)

∴ y = 2x + 1

- Switch x and y

∴ x = 2y + 1

- Solve to find the new y

∵ x = 2y + 1

- Subtract 1 from both sides

∴ x - 1 = 2y

- Divide both sides by 2

∴ (x - 1)/2 = y

- Divide each term in the left hand side by 2

∴ y = 1/2 x - 1/2

- Replace y by f^{-1}

∴ f^{-1}(x)=\frac{1}{2}x-\frac{1}{2}

* The inverse of the function is f^{-1}(x)=\frac{1}{2}x-\frac{1}{2}

7 0
3 years ago
Read 2 more answers
Which of the following statements uses the additive identity? 9 + 0 = 9 9 · 0 = 0 9 + 1 = 1 + 9 (9)(1) = (1)(9)
m_a_m_a [10]
<h3>Answer: 9+0 = 9</h3>

The additive identity is 0. If you add 0 to any number, then you get the same number as a result. In general, x+0 = x where x is a place holder for any number. For this problem, x = 9 so that's how 9+0 = 9.

4 0
3 years ago
Read 2 more answers
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