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Olin [163]
3 years ago
7

What do you do to check whether a number is rational or irrational? In your explanation, use an example of an irrational and a r

ational number.
Mathematics
1 answer:
denis23 [38]3 years ago
6 0
All numbers that are not rational are considered irrational. An irrational number can be written as a decimal, but not as a fraction. An irrational number has endless non-repeating digits to the right of the decimal point.
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1A) When f(n) = 12, what is the value of n?
mr_godi [17]

Answer:

Can't answer this

Step-by-step explanation:

For this question, I think you need to read more informations, find out the function

After you find out the function,

Replace f(x) as 12 and replace x with n

After that, try to solve it.

Good luck.

8 0
3 years ago
Prove that the diagonals of a rhombus are perpendicular using coordinate geometry
lozanna [386]

If we draw a rhombus OABC on a coordinate grid with one vertex at the point O (0,0)

and let its height be 1 then (using the Pythagoras theorem) the coordinates of the 4 points will be as follows:-

O = (0,0) , A = (1, 1), B = (sqrt2+ 1 , 1) , C = (sqrt2, 0)

Slope of the diagonal OB = 1 / (sqrt2 + 1)

Slope of the other diagonal AC = - 1 / (sqrt2 - 1)

Product of the slopes = - 1 / ( sqrt2 + 1)(sqrt2 - 1) = -1 / 1 = -1

This proves that the diagonals are perpendicular.

5 0
2 years ago
4. Determine the following for the equation y = vx – 1.
solniwko [45]

Answer:

this isnt the answer but it helps solve the equation so here is a little explanation

Step-by-step explanation:

Cost Equation

-Is a mathematical equation for a straight line, to predict total cost.

-Total cost = total variable cost + total fixed cost or Y = vx + f

-Y = total mixed cost

v = variable cost per unit of activity

x = volume of activity

f = fixed cost over a given period of time

6 0
3 years ago
Ann travels from town a to town b in 3 hours she then takes another hour to travel from town b to town c the distance between to
abruzzese [7]

add the total time = 3+1 = 4 hours

 add total miles = 100+49 = 149

divide 149 by 4= 149/4 = 37.25 miles per hour average

8 0
3 years ago
What is the relation between angles x and y?
Sliva [168]
I think it is Adjacent and Supplementary
8 0
3 years ago
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