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3 years ago

-3 on a number line

Mathematics

1 answer:

babymother [125]3 years ago

6 0

-3 on a number line would look like 3 right from 0.

Let's just say we have a number line. A number line is a line that represents numbers. I'll say the positive side is on the top/left and the negative side (-3) on the bottom/right. -3 is a negative number. There is the sign (-) before 3. That indicates it's a negative number. Since it's a negative and 3, we move 3 down or right.

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point a is at (-7 5) and point c is at (5 -1). find the coordinates of point b on line ab such that ab is 5 times as long as bc

WARRIOR [948]

Step-by-step explanation:

Let the coordinates of point b be (x,y).

Given the coordinates of a (-7,5) and c(5,-1)

Now according to question

ab = 5bc

using distance formula

$\sqrt{(x+7)^2+(y-5)^2} =5\sqrt{(5-x)^2+(-1-y)^2}$

Solving we can get

$x=-\frac{-11+\sqrt{-4y^2-10y+25}}{2},\:x=\frac{\sqrt{-4y^2-10y+25}+11}{2}$ '

However, we do need either x or y coordinate of point b to find the other.

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3 years ago

Which method do you prefer when comparing numbers written in scientific notation? Explain why you prefer this method using examp

deff fn [24]

Answer:

If two numbers have the same exponent for 10, then compare the decimal numbers to determine the greater number. Sometimes you may have to compare two numbers, but only one of them is in scientific notation. In that case, convert the number that is not in scientific notation into scientific notation first. Then, compare the two numbers. Example 1 : Compare 5.62 x 10 6 and 7.39 x 10 5.

Step-by-step explanation:

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2 years ago

What value of c makes this proportion true 25/20= x/4

satela [25.4K]

x = 5

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3 years ago

How to solve (x-10)(x + 10) in word form

Nezavi [6.7K]

You will distribute, you will do x times both x and postive Ten in the second set of parenthesis, and then you will do negative Ten times x and also positive Ten and then you combine like terms when you got both end products

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3 years ago

For each of the following state the condition that supports why quadrilateral WXYZ is a pallelogram.

Veronika [31]

1.}--diagonals bisect each other
2...and...3}.---two pairs of opposite sides are parallel and equal
4.}--opposite angles are equal
5…}---diagonals bisect each other

none. I has no solutions (in all x, y and z) because in case x+y+z is 3 it can never be 4. So, it's imposible to find any (x,y,z) so that they satisfy both equations.
To find the slope, convert the equation 21x - 3y + 18 = 0 to slope-intercept form (y = mx + b, where m is the slope and b is the y-intercept). To do so, first subtract 18 and 21x from both sides to get -3y = -21x - 18. Then divide both sides by -3 to get y = 7x + 6. Therefore the slope is 7.

 if my answer is wrong, report iTS ok 

3 0

2 years ago

-3 on a number line​

-3 on a number line