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3 years ago

Help please!!!!!!!!

Mathematics

2 answers:

ad-work [718]3 years ago

7 0

True its just flipped around all the corners are the same

Delvig [45]3 years ago

6 0

Answer:

true

Step-by-step explanation:

if u turn the triangle u can see that they are congruent

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Find the geometric mean of 4 and 12

jonny [76]

Answer:

The Geometric Mean of 4 and 12 is 6.9

Step-by-step explanation:

Given Numbers are 4 and 12

To find : Geometric mean of the given No.

The Geometric Mean is a type of average where we multiply the nos. together and then take a square root (for two nos), cube root (for three nos) etc.

Formula for Geometric Mean is given by,

$Geometric\,Mean\,of\,x_1\,,\,x_2\,,\,x_3..x_n=\sqrt[n]{x_1\times x_2\times x_3\times\,...\,\times x_n}$

⇒ Geometric Mean of 4 and 12 = $\sqrt{4\times12}$

= $\sqrt{48}$

= $4\sqrt{3}$

= 6.92820323028

= 6.9

Therefore, The Geometric Mean of 4 and 12 is 6.9

7 0

4 years ago

Read 2 more answers

Inside the box of every cereal box contains a surprise gift. The store manager assures employees that 22 of the 45 boxes on the

kherson [118]

Answer:

0.2333 = 23.33% probability that both of them have the secret decoder ring

Step-by-step explanation:

The cereals are chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by the following formula:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

In which:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this question:

45 boxes, which means that $N = 45$

22 have the secret decoder ring, which means that $k = 22$

Two boxes, which means that $n = 2$

What is the probability that both of them have the secret decoder ring?

This is P(X = 2). So

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

$P(X = 2) = h(2,45,2,22) = \frac{C_{22,2}*C_{23,0}}{C_{45,2}} = 0.2333$

0.2333 = 23.33% probability that both of them have the secret decoder ring

8 0

3 years ago

I’m stuck on this question??????????????

ddd [48]

Answer:

You are? so am I

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

A square of the side lenght of 6cm has the same area as this rectangle . find the perimeter of the rectangle.

Aleksandr-060686 [28]

Answer:

The perimeter of the rectangle is 26 cm

Step-by-step explanation:

First find the area of the square by multiplying 6 by itself

A = 6 cm * 6 cm = 36 sq cm

Since the rectangle has the same area as the square, we can say that w * 9 = 36 sq cm

w * 9 = 36

Divide both sides by 9 to isolate the variable, w

w * 9 / 9 = 36 / 9

w = 4 cm

The width of the rectangle is 4 cm so now we just use that to find the perimeter of the rectangle

P = 2(9) + 2(4) = 26 cm

3 0

2 years ago

Which equation has the solution x = 3?

miss Akunina [59]

Answer:

9-3x=0

Step-by-step explanation:

Add 3x to both sides

9=3x

divide both sides by 3

3=x

x=3

3 0

3 years ago

Read 2 more answers

Help please!!!!!!!!​

Help please!!!!!!!!