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3 years ago

How to tell if a scatter plot is positive or negative or no ttend?

Mathematics

2 answers:

Korvikt [17]3 years ago

8 0

If the dots are going to the right, it's positive. If they're going to the left, they're negative.

blondinia [14]3 years ago

5 0

And if the dots are both sides, there is no trend.

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What makes an equation false?

stellarik [79]

Answer:

When ever you can’t solve it it considered false like 4 - 12

Step-by-step explanation:

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Let a= x^2 +4. Rewrite the following equation in terms of a and set it equal to zero.

dusya [7]

Answer:

If:

$a=x^{2}+4$ (1)

And we have to rewrite the following expresion in terms of $a$ :

${(x^{2}+4)}^{2}+32=12x^{2}+48$ (2)

Firstly we have to rearrange the right side of equation (2) in terms of $x^{2}+4$ , factorizing by the common factor:

${(x^{2}+4)}^{2}+32=12(x^{2}+4)$

Then, we can substitute $x^{2}+4$ by $a$ :

$a^{2}+32=12a$

And set it equal to zero:

$a^{2}-12a+32=0$ >>>>This is the resulting equation

Now, each term of an algebraic expresion (like the equation above) is composed of sign, coefficient, variable and exponent. The terms are separated from each other by the plus sign (+) or the minus sign (-).

In this case, the variable is $a$ and the number that multiplies the variable (the coefficient) is $-12$ , whereas the constant (which is the term with no variable) is $32$

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3 years ago

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Cost to store 56$ markup 80%

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It would be $44.8 I think

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3 years ago

If you were to measure a person once a year, every year, from the ages of ten to twenty-five, would your ordered pairs of age an

Natasha2012 [34]

Answer:

Yes.

Step-by-step explanation:

First, make a graph, or imagine one.

I'll be making an example graph that only goes up to 13 here.

Age - 10 11 12 13

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If we mark this graph with points, you will find that there is only 1 point on each age line!

Age - 10 11 12 13

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This means the answer is yes!

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3 years ago

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Help with math?Please? ANYONE

AlekseyPX

Answer:

(-1, 1)

Step-by-step explanation:

Hi there!

We want to solve the system of equations given as:
2x-3y=-5

3x+y=-2

Let's solve this equation by substitution, where we will set one variable equal to an expression containing the other variable, substitute the expression as the variable that it equals, solve for the other variable (the variable that the expression contains), and then use the value of the solved variable to find the value of the first variable
In the second equation, we have y by itself; therefore, if we subtract 3x from both sides, then we will get an expression that y is equal to.

So subtract 3x from both sides

y=-3x-2

Now substitute -3x-2 as y in the first equation.
It will look something like this:

2x - 3(-3x-2)=-5

Now do the distributive property.

2x+9x+6=-5

Combine like terms

11x+6=-5

Subtract 6 from both sides

11x=-11

Divide both sides by 11

x=-1

Now substitute -1 as x in the equation y=-3x-2 to solve for y:

y=-3(-1)-2

multiply

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The answer is x=-1, y=1; this can also be written as an ordered pair, which would be (-1, 1)
Hope this helps!
If you would like to see another problem for additional practice, take a look here: brainly.com/question/19212538

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