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user100 [1]
2 years ago
8

Write an expression that can be used to find how many inches are in six 1/2 inches can you answer fast cause I really need this

to be done by today
Mathematics
1 answer:
Angelina_Jolie [31]2 years ago
5 0

Answer:

6.5

Step-by-step explanation:

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Show the work please
frosja888 [35]

Answer: x = 9/2

Step-by-step explanation: 24 = 4x + 6

7 0
3 years ago
Read 2 more answers
Given that x and y vary inversely and that y is 8 when x is 2, what is the constant of variation, k?
Shtirlitz [24]

Answer:

16

Step-by-step explanation:

the equation is x = k / y

therefore k = x* y

k = 2*8

k= 16

4 0
3 years ago
The function h is defined by h(x)=4+3x over 5+x<br><br> Find h(4z)
Jobisdone [24]

Answer:

h(4z)=4+12z / 5+4z

Step-by-step explanation:

The function h is defined by h(x)=4+3x over 5+x

This can be written as

h(x)=4+3x / 5+x

The value of the function at any time depends on the value of x. x is the independent variable. The variable,x can take any value at any time.

To find h(4z), it means that x is taking the value of 4z.

We will substitute 4z in the place of x in the function. This becomes

h(4z)=4+3×4z / 5+4z

h(4z)=4+12z / 5+4z

5 0
3 years ago
BRAINLIESTT ASAP! PLEASE HELP ME :)
alukav5142 [94]

Answer:

216 min

3 hours and 36 min or 3.6 hours

Step-by-step explanation:

1/9+1/6

6+9/54

15/54

5/18

18/5

60*18/5

1080/5

/= fraction sign

3.6 hours

Step-by-step explanation:

Blake can do work in hours = 9

Blake can do a part of work in 1 hour = 1/9

Ned can paint the same room in six hours.

Ned can do a part of work in 1 hour = 1/6

They can do a part of work together in 1 hour =  1/9+1/6

                                                                          = 5/18  

Now they can do 5/18}  part of work in hour = 1

So, they can do whole work in hours =  1/5/18

                                                            =  3.6

Hence it will take 3.6 hours to paint the room if they work together.

7 0
3 years ago
If the telescope is 1 m deep and 8 m wide, how far is the focus from the vertex?
marysya [2.9K]
First, let me introduce the general equation of the parabola:

(x-h)^2 = +/- 4a(y-k) or (y-k)^2=+/- 4a(x-h), where

(h,k) are the coordinates of the vertex
a is the distance of the vertex to the focus
4a = length of lactus rectum or the focal width

If the equation contains (x-h)^2, then the parabola passes the x-axis twice. Similarly, (y-k)^2 passes the y-axis twice. If the sign is (-), it opens to the left(if y-axis) or downward (if x-axis). If the sign is (+), it opens to the right(if y-axis) or upward (if x-axis). 

The equation of the parabola is -1/12 x^2 = y. Rearranging to the general form:

x^2 = -12y
Therefore, 

-4a = -12
4a = 12
a = 3, and the parabola is facing downwards.

The vertex is (0,0) at the origin.
The focus is (0,-3). Since it is negative, the focus is situated downwards, hence -3.
The directrix is the mirror image of the focus. Hence, it is a line passing +3 on the y-axis. y=3
Focal width is 4a which is equal to 12 units.
4 0
3 years ago
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