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Alona [7]
4 years ago
8

Help me with this problem !!!!!!!!!!

Mathematics
1 answer:
Mamont248 [21]4 years ago
3 0

Answer:

Hi, your answer is y=-\frac{1}{2} x-3

Step-by-step explanation:

We will use the slope-intercept formula which is

\frac{y2-y1}{x2-x1}

We will use two points in this case I'll use

(-2,-2) and (-8,1)

\frac{1-(-2)}{-8-(-2)}=-\frac{3}{6} which can be simplified as -\frac{1}{2}

Your Y will be -3

which your final answer will be y=-1/2x-3

Hope this helps :)

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A basic variable in a linear system is a variable that corresponds to a pivot column in the coefficient matrix.Is this statement
Naya [18.7K]

Answer:

The given statement is true.

Step-by-step explanation:

A basic variable in a linear system is a variable that corresponds to a pivot column in the coefficient matrix.

The statement is true.

This statement is the definition of a basic variable.

We can also say that a basic variables are 'n' variables that can take any value other than zero.

3 0
4 years ago
Solve for x: x + 15 = 45 Question 1 options: 30 60 -60 -30
brilliants [131]

<u><em>Answer: A. 30. x=30/ 30=x *The answer should be the positive sign.*</em></u>

Step-by-step explanation:

subtraction property of equality is subtracting the same number from both sides of an equation does not change the equation.

a-c=b-c

addition property of equality is adding the same number to both sides of an equation does not change the equation.

a+c=b+c

subtract by 15 both sides of an equation.

x+15-15=45-15

simplify.

45-15=30

30+15=45

45-30=15

x=30 and 30=x

Hope this helps!

Thanks!

Have a great day!

6 0
4 years ago
What is the slope of the line y+4 = 3(x+6)
Akimi4 [234]

Answer:

3

Step-by-step explanation:

First you gotta take the equation and bring it to the following form:

y = ax + b

The slope of the line is the coefficient of x, a.

In other words:

y + 4 = 3(x + 6) \\ y + 4 = 3x + 18  \\ y = 3x + 18 - 4 \\ y = 3x + 14

So, as we can see, the number infront of x is 3. That is to say that the slope of this line is equal to 3.

3 0
3 years ago
One uranium atom has a mass of 3.95 x 10^-22 grams.
creativ13 [48]
Remember
(ab)/(cd)=(a/c)(b/d)
and
\frac{x^n}{x^m}=x^{n-m}

1kg=1000g=1*10^3g
hmm, I estimate, 4 of them

x=number of attoms
mass of 1 times x=1*10^3
3.95*10^-22 times x=1*10^3
divide both sides by 3.95*10^-22
x=\frac{1*10^3}{3.95*10^{-22}}= (\frac{1}{3.95}  )( \frac{10^{3}}{10^{-22}} )=0.25316*10^{25}=2.5316*10^{24}
a million has 9 zeroes
so 24 zeroes is alot that is a <span>septillion, so there are 2.5316 septillion uranium atoms in 1kg


a. 4
b. underestimate

</span>
5 0
4 years ago
Solve the given problem.
fiasKO [112]
This is a word problem so translate to math so this is asking 6+(4/2) which is 8 
5 0
4 years ago
Read 2 more answers
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