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3 years ago

Which expressions are equivalent to -2.5(1 -2n) - 1.5n ?

1 answer:

3 0

Distribute then add a(b-c)=ab-ac -2.5(1 -2n) - 1.5n -2.5(1-2n)= -2.5-(-5n)=-2.5+5n now add the other bit -2.5+5n-1.5n -2.5+3.5n B is a corect answer find others distribute and add last 2 choices D=-2.5-3.5n E=-2.5+3.5n E is correc t answers to pick are B and E

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What compound inequality describes this graph

nadezda [96]

Answer:

0≥x<4

Step-by-step explanation:

first, let's look at this number line.

there is a closed circle at 0 and an open circle at 4. this means that 0 is included (≤ or ≥) and that 4 is not included (< or >).

these are the endpoints, meaning that in this compound inequality, the numbers next to the symbols are 0 and 4.

x is in the middle of this compound inequality.

0 x 4

now, we have to figure out the symbols in between. i wrote out our choices above for each number. the highlighted portion is greater than or equal to 0 and less than 4, so we can write this compound inequality as the following:

0≥x<4

x is greater than or equal to 0, but less than 4

4 0

3 years ago

Who ever help I will give you the brainliest answer

Gala2k [10]

Answer:

just do it Like Nikey

Step-by-step explanation:

lol

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2 years ago

Consider a circle whose equation is x2 + y2 – 2x – 8 = 0. Which statements are true? Select three options. The radius of the cir

FromTheMoon [43]

The statements which are correct about the equation of circle $x^{2} +y^{2}-2x-8=0$ are 1) The radius of the circle is 3 units,2) The center of the circle lies on the x axis,5) The radius of this circle is the same the radius of the circle whose equation is $x^{2} +y^{2} =9$ .

Given the equation of circle be $x^{2} +y^{2}-2x-8=0$ .

We are required to find the appropriate statements related to the equation $x^{2} +y^{2}-2x-8=0$ .

$x^{2} +y^{2}-2x-8=0$ can be written as under:

$x^{2} +y^{2} -2x+1-9=0$

$x^{2} +1^{2}-2x+y^{2} -9=0$

$(x-1)^{2}+y^{2}$ -9=0

$(x-1)^{2} +y^{2} =9$

$(x-1)^{2}+y^{2} =3^{2}$

Equation of a circle usually in the form $x^{2} +y^{2} =a^{2}$ in which a is radius.

From the comparison of both the equations we get that radius is 3 units.

From the equation point will be (1,0). It is on the x axis.

Hence the statements which are correct about the equation of circle $x^{2} +y^{2}-2x-8=0$ are 1) The radius of the circle is 3 units,2) The center of the circle lies on the x axis,5) The radius of this circle is the same the radius of the circle whose equation is $x^{2} +y^{2} =9$ .

Learn more about radius at brainly.com/question/24375372

#SPJ1

3 0

10 months ago

Twenty-six out of 50 teachers drive their cars to school. Approximately what percent of these teacher drive to school

Mars2501 [29]

Answer:

52%

Step-by-step explanation:

26÷50×100

that's it, hope it's okay

4 0

2 years ago

Is x+2x^3/x^2 a polynomial true or false

Elena L [17]

Answer:True,because there are two or more variable/numbers in there

Step-by-step explanation:

6 0

2 years ago