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2 years ago

Need help solving system of equations by SUBSTITUTION

Mathematics

1 answer:

Step2247 [10]2 years ago

8 0

Is that families???????

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Question 6 of 10

Liula [17]

Answer:

A or C. Pretty sure it's A though.

Step-by-step explanation:

7 0

2 years ago

Which equation represents a line that passes through (2,-1/2) and has a slope of 3 ?

Anna11 [10]

Answer:

C. $y + \frac{1}{2} = 3(x - 2)$

Step-by-step explanation:

Given

$Point: (2,\frac{-1}{2})$

$Slope: 3$

Required

Equation of line

Let m represents the slope of the line;

m is calculated as thus

$m = \frac{y - y_1}{x - x_1}$

$where (x_1,y_1) = (2,\frac{-1}{2})$

$So; x_1 = 2; y_1 = \frac{-1}{2}$

$m = 3$

By substituting the right values in the formula above;

$m = \frac{y - y_1}{x - x_1}$ becomes

$3 = \frac{y - \frac{-1}{2}}{x - 2}$

Multiply both sides by $(x - 2)$

$3 *(x - 2) = \frac{y - \frac{-1}{2}}{x - 2} *(x - 2)$

$3 *(x - 2) = (y - \frac{-1}{2})$

$3 *(x - 2) = (y + \frac{1}{2})$

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

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

Reorder

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

Hence, the equation that represents the line is $y + \frac{1}{2} = 3(x - 2)$

4 0

3 years ago

What is the difference between certain and impossible?.

kaheart [24]

Certain events have a 100% probability of occurring, and impossible events have a 0% chance of occurring.

Theoretical probability is based on a mathematical estimate, whereas experimental probability is a probability determined based off of an experiment.

7 0

2 years ago

Quizziz helpiurhgipuwqb;qor

Amiraneli [1.4K]

Answer:

Ummm -6 and -4

Step-by-step explanation:

Duh

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2 years ago

FLIP OR NOT TO FLIP?<br> A. -4x + 2 < -2<br> B. - 9>-8<br> -7.

vivado [14]

Answer:

the answer is not flip because when u calculate it

5 0

2 years ago

Need help solving system of equations by SUBSTITUTION ​

Need help solving system of equations by SUBSTITUTION