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2 years ago

What are inverse operations? Describe the inverse operations for addition, subtraction, multiplication and division.

Mathematics

2 answers:

DochEvi [55]2 years ago

8 0

An inverse operation is when after you add, you subtract. Same with multiplication and division.

Ipatiy [6.2K]2 years ago

7 0

Answer:

Inverse operations are opposite operations that undo each other. Addition and subtraction are inverse operations. Multiplication and division are inverse operations.

Step-by-step explanation:

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Find the equation of the line with slope -2 which goes through the point (9,-7).

ryzh [129]

The answer is y= -2x-7

4 0

2 years ago

Find equation of set of points pieces that its distance from the point 3, 4, -5 and -2, 1, 4 are equal.

Gnesinka [82]

Answer:

Step-by-step explanation:

Suppose we a point $P(x,y,z)$ such that its distance from either the point $A(3,4,-5)$ or $B(-2,1,4)$ is the same.

Using this information we can formula:

distance AP = distance BP

first, let's find the distance from AP, using the distance formula.

$r = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2 + (z_1 - z_2)^2}$

$AP = \sqrt{(3 - x_2)^2 + (4 - y_2)^2 + (-5 - z_2)^2}$

similarly, we can find the distance BP

$BP = \sqrt{(-2 - x_2)^2 + (1 - y_2)^2 + (4 - z_2)^2}$

since both distances are exactly the same we can equate them

$AP = BP$

$\sqrt{(3 - x_2)^2 + (4 - y_2)^2 + (-5 - z_2)^2} = \sqrt{(-2 - x_2)^2 + (1 - y_2)^2 + (4 - z_2)^2}$

we can simplify it a bit squaring both sides, and getting rid of the subscripts.

$(3 - x)^2 + (4 - y)^2 + (-5 - z)^2 = (-2 - x)^2 + (1 - y)^2 + (4 - z)^2$

what we have done here is formulated an equation which consists of any point P that will have the same distance from (3,4,-5) and (-2,1,4).

To put it more concretely,

This is the equation of the the plane from that consists of all points (P) from which the distance from both (3,4,-5) and (-2,1,4) are equal.

3 0

2 years ago

If f(x) = 5x − 3, which expression represents its inverse function?

Drupady [299]

Answer:

$\frac{x+3}{5}$

Step-by-step explanation:

5x - 3 = y then 5x = y + 3 then x = (y + 3)/5

then the inverse function of f is : (x+3)/5

6 0

2 years ago

A triangle has two sides of lengths 4 and 7. What value could the length of

lara [203]

Answer:

B. C. F.

Smaller Side + Other smaller side > Bigger side

Hope this helps

Step-by-step explanation:

8 0

3 years ago

Triangle LMN is congruent to triangle HIJ. Angle L measures 35° angle M measures 65° and angle H measures x degrees. Find the va

-Dominant- [34]

We know that triangle LMN is congruent to triangle HJL so that ==> angle H measures = angle L measures
so that H=L=35 degree

8 0

2 years ago