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3 years ago

Can someone please give me the (Answers) to this? ... please ... I need help….

Mathematics

1 answer:

Nana76 [90]3 years ago

3 0

The geometric mean is defined as the nth root of the product of n numbers

1. 4 and 9

Geometric mean = $\sqrt{4*9} = \sqrt{36} =6$

2. 5 and 8

Geometric mean = $\sqrt{5*8} =\sqrt{40} = 2\sqrt{10}$

3. 8 and 32

Geometric mean = $\sqrt{8*32} =\sqrt{256} =16$

4. 64 and 36

Geometric mean = $\sqrt{64*36} =\sqrt{2304}=48$

Hope that helped!

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Solve the compound inequality.

kondaur [170]

Answer:

x can be any real number

Step-by-step explanation:

5x<=21+2x

3(x+1)>=24

5x-2x<=21

3x+3>=24

3x<=21, i.e x<=7

3x>=21, i.e x>=7

Since we have OR, at least one of them must be true. So x can be any real number.

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3 years ago

If your phone Is on 100 percent battery, and you drain 45 percent of it, then charge 22 percent more, how much battery do you ha

baherus [9]

100-45+22= 77
you will have 77 percent of battery on your phone

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4 years ago

Graph a line with a slope of -3 that contains the points (4,-2)

Lera25 [3.4K]

Answer:

see below for a graph

Step-by-step explanation:

To draw a graph on a grid, locate the point (4, -2) and use the slope to find another point. One such point will be 1 to the left and up 3*, at (3, 1). With two points, you can draw the line through them to complete the graph.

For a graphing tool that requires an equation, the point-slope form of the equation can be used:

y -k = m(x -h) . . . . . a line of slope m through point (h, k)

For the given slope and point, the equation of the line is ...

y +2 = -3(x -4)

y = -3x +10

_____

* The slope is "rise" over "run". The slope of -3 means that a <em>run</em> of +1 will result in a <em>rise</em> of -3. The given point is already below the x-axis, so we don't really want to find more points farther down. In order to go up on a line with negative slope, we must choose a point to the left of the given one.

3 0

4 years ago

What is the sum of 1/3 and 1/6

lutik1710 [3]

The sum of 1/3 plus 1/6 is 1/2

8 0

4 years ago

A driver has three ways to get from one city to another. There is an 80 % chance of encountering atraffic jam given he is on rou

lukranit [14]

Answer:

The probability is 0.64

Step-by-step explanation:

What we want to calculate here is conditional probability.

Let P(A )= Probability of using route A = 50% = 0.5

Let P( B )= probability of using route B = 25% = 0.25

Let P (C )= probability of using route C = 25% = 0.25

Let T be the probability that he will be in a traffic Jam

The probability that he will be in a traffic Jam if he uses route A = 80%

Mathematically this is written as P( T | A) which is read as probability of T given A

so P( T | A) = 0.8

Same way for B and C which can be written as follows;

P( T | B) = 60% = 0.6

P( T | C) = 30% = 0.3

Now, what do we want to calculate?

He is in a traffic Jam, and we want to find the probability that he used route A. This means we want to find P(A) given T which can be written mathematically as P ( A | T)

We can find this using the other parameters and especially the equation below;

P ( A | T) = P(A) • P( T| A) / {P(A) • P ( T | A) + P(B)• P(T| B) + P(C) • P(T|C)

P( A | T) = (0.5 * 0.8)/ ( 0.5)(0.8) + (0.25)(0.6) + (0.25)(3) = 0.4/(0.4 + 0.75 + 0.075) = 0.4/0.625 = 0.64

4 0

3 years ago

￼Can someone please give me the (Answers) to this? ... please ... I need help….

Can someone please give me the (Answers) to this? ... please ... I need help….