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2 years ago

Someone please help me

Mathematics

2 answers:

Ganezh [65]2 years ago

6 0

The answer is 2005.

Hatshy [7]2 years ago

5 0

Answer:

1997

Step-by-step explanation:

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Which of the following relations has an inverse that is not a function?

sertanlavr [38]

Answer:

Option B is correct.

The relation which has an inverse that is not a function is :(1, 2), (1, 3), (4, 3)

Step-by-step explanation:

Inverse of a function is the set of ordered pairs obtained by interchanging the first and second elements of each pair in the original function.

Let f(x) ={(1, 2), (1, 3), (4, 3)}

To find the inverse:

Inverse of f(x)=g(x)= {(2, 1), (3, 1), (3, 4)}

Function states that a relation in which each input value has only one output value.

Since, g(x) is not a function because the input 3 has multiple output values,.

Therefore, the only relation which has an inverse that is not a function is :(1, 2), (1, 3), (4, 3)

8 0

3 years ago

A random sample of 11 days were selected from last year's records maintained by the maternity ward in a local hospital, and the

EleoNora [17]

Answer: ( Min = 0 , $Q_1=1$ , $Q_2=3$ , $Q_3=7$ , Max = 10 )

Step-by-step explanation:

Given : A random sample of 11 days were selected from last year's records maintained by the maternity ward in a local hospital, and the number of babies born each day of the days is given below:

3 7 7 10 0 7 1 2 5 3 0

We first arrange them in increasing order , we get

0 0 1 2 3 3 5 7 7 7 10

Here , N= 11

Now , we can see that

Minimum value = 0

Maximum value = 10

First quartile $Q_1$ = $(\dfrac{N+1}{4})^{th}\ term=(\dfrac{12}{4})^{th}\ term = 3^{rd} term =1$

Second quartile $Q_2$ = Median = Middlemost number = 3

Third quartile $Q_3$ = $(\dfrac{3(N+1)}{4})^{th}\ term=(\dfrac{36}{4})^{th}\ term$

$= 9^{th} term =7$

∴ The required five number summary : ( Min = 0 , $Q_1=1$ , $Q_2=3$ , $Q_3=7$ , Max = 10 )

7 0

2 years ago

Explain how you can find the measure of angle 12?<br> How can you find the measure of angle 1?

nalin [4]

Let's say you know the measure of angle 10. Let's make it 120 degrees.

Since it looks like you're going through a traversals unit (or something that includes traversals), you know that angle 10 and angle 8 are the same, which means they are both 120 degrees.

Now, since a line is 180 degrees on one side, you have to subtract 180-120 to find angle 7, which is 60.

Using the exterior-interior rule (I don't know the name), you know that angle 7 is equal to angle 1, which gets you 60.

Angle 1: 60 degrees.

You can do the same thing with another angle to find 12, or continue with this scenario with angle 10 being 120 degrees.

Edit: If you want to continue with this scenario, you can use the two interior angle rule, where angle 9 is equal to angle 1, and angle 12 is equal to angle 5. This also means angle 13 is equal to angle 8. But, since angle 13 is also 120 degrees, and there are 180 degrees in a line, that means angle 12 is also 60 degrees.

Angle 12: 60 degrees.

3 0

2 years ago

Pyramid AAA has a volume of 101010 cubic units, a height of 555 units, and a length of 999 units for the longest edge. Pyramid B

bezimeni [28]

Answer:

10 cubic units

Step-by-step explanation:

I did the khan academy

5 0

2 years ago

Geometry/Math question that I'm having issues with, see the attached image.

igor_vitrenko [27]

Answer:

x=30

Step-by-step explanation:

Vertical angles formed by intersecting lines are always equal so the an equation can be formed:

4x+30=5x to solve start by subtracting 4x on both sides

30=x

6 0

3 years ago