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Arlecino [84]
3 years ago
6

Describe how you can show how you can add 4+-7 using a number line

Mathematics
1 answer:
dedylja [7]3 years ago
6 0
4+-7= -3
Because if it’s one negative and one positive then the answer will always be a negative but if it’s two negatives then it will be a positive
You might be interested in
If the x and y values in each pair of a set of ordered pairs are interchanged the resulting set of ordered pairs is known as the
pochemuha

Answer:

Inverse of a relation

Reasoning:

the inverse of a function is a full function, this is just a set of pairs.  A set of pairs, or relation, where x and y values interchange are inverse of the relation.  A one to one function is when a function's inverse is also a function (doesn't have more than one y for each x) which can be tested for on the normal function's graph with a HORIZONTAL line test.  A normal parabola isn't one to one.  An onto function has to do with every value being used (I don't remember much about them, but once again this isn't a function, but rather a specific set of pairs/data)

Example of inverse of a relation:

Relation: {(0,5), (3,2)}

Inverse: {(5,0), (2,3)}

Example of inverse of a function:

f(x)=5x

f-1(x)=x/5

Example of a one to one function:

f(x)=x+1

4 0
2 years ago
Can you solve 5a please greatly appreciated.
timurjin [86]
Part I)
 
The module of vector AB is given by:
 lABl = root ((- 3) ^ 2 + (4) ^ 2)
 lABl = root (9 + 16)
 lABl = root (25)
 lABl = 5

 Part (ii)
 The module of the EF vector is given by:
 lEFl = root ((5) ^ 2 + (e) ^ 2)
 We have to:
 lEFl = 3lABl
 Thus:
 root ((5) ^ 2 + (e) ^ 2) = 3 * (5)
 root ((5) ^ 2 + (e) ^ 2) = 15
 Clearing e have:
 (5) ^ 2 + (e) ^ 2 = 15 ^ 2
 (e) ^ 2 = 15 ^ 2 - 5 ^ 2
 e = root (200)
 e = root (2 * 100)
 e = 10 * root (2)
3 0
3 years ago
Write the equation 2x - 3y = 6 in slope-intercept form.<br>​
ohaa [14]

Answer:

y=2/3x-2

Step-by-step explanation:

5 0
3 years ago
What is the answer to:<br><br>3(3x-4)-2(2x-1)
Tamiku [17]

Answer:

= 5x -10

Step-by-step explanation:

=(3)(3x)+(3)(−4)+(−2)(2x)+(−2)(−1)

=9x+−12+−4x+2

Combine Like Terms:

=9x+−12+−4x+2

=(9x+−4x)+(−12+2)

=5x+−10

3 0
3 years ago
Read 2 more answers
Susanna has played the piano for s years. Patrick has played the piano for 4 more than twice the number of years that Susanna ha
scoray [572]
S=Years Susanna has played the piano 
p=Years Patrick has played the piano 

The expression for this question would be s(2)+4=p

Hope this helps! :) 
6 0
2 years ago
Read 2 more answers
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