All categories

2 years ago

What is r - 9 for r= 20

Mathematics

2 answers:

laila [671]2 years ago

6 0

11 is the answer.I need to make this response 20 characters lonh so here we go:khfdeyijbvf33yookhvc

Ilia_Sergeevich [38]2 years ago

3 0

If r=9, plug in 9 for r and you get 20 - 9. 20 - 9 is 11.

You might be interested in

Find the zeroes of the function f(x).<br> f(x)=(x–3)(x+4)

Ymorist [56]

Answer:Set \displaystyle f\left(x\right)=0f(x)=0.

Step-by-step explanation:

Set \displaystyle f\left(x\right)=0f(x)=0.

If the polynomial function is not given in factored form:

Factor out any common monomial factors.

Factor any factorable binomials or trinomials.

Set each factor equal to zero and solve to find the \displaystyle x\text{-}x- intercepts.

5 0

2 years ago

Please help! I don’t know how to make the square roots equal to each other but I understand the other steps... kind of.

katovenus [111]

Answer:

Step-by-step explanation:

4 0

3 years ago

Cuál enunciado No es verdadero con respecto al valor de la varieble n en la siguiente ecuación?

aliina [53]

Answer:

es la c

Step-by-step explanation:

Explicación paso a paso:ya que para que de 0 tiene que ser un número negativo, tiene que ser el número inverso a 2/3, entonces n= -2/3 que tiene el mismo valor absoluto que 2/3

3 0

2 years ago

First and Second Street are parallel to each other.

garik1379 [7]

If I did this right, it should be:

1. 130 degrees
2. 50 degrees
3. 130 degrees
4. 50 degrees

Here's hoping I'm right. lol

3 0

2 years ago

Line g passes through points (5, 9) and (3, 2). Line h passes through points (9, 10) and (2, 12). Are line g and line h parallel

icang [17]

For this case we find the slopes of each of the lines:

The g line passes through the following points:

$(x_ {1}, y_ {1}) :( 3,2)\\(x_ {2}, y_ {2}) :( 5,9)$

So, the slope is:

$m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}} = \frac {9-2} {5-3} = \frac {7} {2}$

Line h passes through the following points:

$(x_ {1}, y_ {1}) :( 9,10)\\(x_ {2}, y_ {2}) :( 2,12)$

So, the slope is:

$m = \frac {y_ {2} -y_ {1}}{x_ {2} -x_ {1}} = \frac {12-10} {2-9} = \frac {2} {- 7} = - \frac {2} {7}$

By definition, if two lines are parallel then their slopes are equal. If the lines are perpendicular then the product of their slopes is -1.

It is observed that lines g and h are not parallel. We verify if they are perpendicular:

$\frac {7} {2} * - \frac {2} {7} = \frac {-14} {14} = - 1$

Thus, the lines are perpendicular.

Answer:

The lines are perpendicular.

8 0

2 years ago