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2 years ago

Which of these numbers are 11 units from 0 on the number line? A 0 B+11 C-11

Mathematics

2 answers:

deff fn [24]2 years ago

8 0

It can be either B. 11 or C. -11

Kaylis [27]2 years ago

7 0

Answer: The correct options are

(B) +11

(C) -11.

Step-by-step explanation: We are given to select the numbers from the options that are 11 units from 0 on the number line.

We know that

the distance between a and b on the number line is given by

$D=b-a,$ where b is greater than a.

So, we have

the distance between 0 and 0 on the number line is

$D=0-0=0~\textup{units}.$

The distance between +11 and 0 is

$D=+11-0=11~\textup{units}.$

The distance between -11 and 0 is

$D=0-(-11)=11.$

Thus, the required numbers that are 11 units from 0 are +11 and -11.

Options (B) and (C) are CORRECT.

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How do you know what number to multiply everything by using the elimination method on systems of equations??

Marrrta [24]

Answer:

See below

Step-by-step explanation:

You multiply the equations by numbers that will give you the least common multiple of the coefficients.

Suppose you have a system of two equations:

$\begin{cases}(1)& 2x + y = 40\\(2) & x + 2.5y = 60\end{cases}\\$

You can choose to eliminate either x or y.

1. Eliminating x

The coefficients of x are 2 and 1. The least common multiple is 2, so you multiply (1) by 1 and (2) by 2 to get

$\begin{array}{lrcll}(3) & 2x + y & = & 40 &\ \\(4) & 2x + 5y & = & 120 & }\\\end{array}$

Then you can subtract (3) from (4) and get

4y = 80. Solve for y.

2. Eliminating y

The coefficients of y are 1 and 2.5. The least common multiple is 2.5, so you multiply (1) by 2.5 and (2) by 1 to get

$\begin{array}{lrcll}(5) & 5x + 2.5y & = & 100 &\ \\(6) & x + 2.5y & = & 60 & }\\\end{array}$

Then you can subtract (6) from (5) and get

4x = 40. Solve for x.

8 0

2 years ago

If you was going to have the fraction 3/4 = something 28 would you use 3 or4 to times it

sweet-ann [11.9K]

Yeah you wouldnt use either

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2 years ago

Need help on this question can someone help please and thank you!

Eva8 [605]

Answer:

Jesse is correct because -5<-2

Step-by-step explanation:

and also, can u mark me as brainliest

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2 years ago

What is the domain of the following functions

Sholpan [36]

Answer:

Step-by-step explanation: HOPE THIS HELPED

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2 years ago

How do i do this question? someone help

lesya [120]

There are 360 degrees in the rhombus which means the equilateral triangles has 180 degrees (because it is half the rhombus and also it is the angle sum of a triangle). It is equilateral meaning all sides and angles are the same so they all must be 60 (180/3)
Now this must mean that angle a is equal to the opposing angle being 60

8 0

2 years ago