2 years ago

Pls be right will give brainliest :3

Mathematics

1 answer:

Vedmedyk [2.9K]2 years ago

7 0

A:5

I hope this helps you
Good luck on the rest :)

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What is the y intercept of a graph containing the two points (3,1) and (7,-2)?

olasank [31]

The y intercept of a graph containing the two points (3,1) and (7,-2) is $\frac{13}{4}$

Solution:

Given points are (3, 1) and (7, -2)

The equation of line in slope intercept form is given as:

y = mx + c ------- eqn 1

Where, "m" is the slope of line and "c" is the y intercept

Let us first find the slope of line

The slope of line is given as:

$m = \frac{y_2-y_1}{x_2-x_1}$

Here the points are (3, 1) and (7, -2)

$(x_1, y_1) = (3, 1)\\\\(x_2, y_2) = (7, -2)$

Substituting in formula, we get

$m = \frac{-2-1}{7-3}\\\\m = \frac{-3}{4}$

To find the y intercept:

$\text{Substitute } m = \frac{-3}{4} \text{ and } (x, y) = (3, 1) \text{ in eqn 1 }$

$1 = \frac{-3}{4} \times 3 + c\\\\1 = \frac{-9}{4} + c\\\\ \text{Simplify the above equation } \\\\1 = \frac{-9+4c}{4}\\\\4 = -9 + 4c\\\\13 = 4c\\\\\text{Divide both sides by 4 }\\\\c = \frac{13}{4}$

Thus y -intercept is $\frac{13}{4}$

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A rectangular sheet of cardboard measures 12.2cm by 5.6cm. What is the radius of the largest circle that can be cut from the car

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6.1cm is the right answer.

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Find the midpoint of the segment with the following endpoints. (-3,6) and (3,0)

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Answer

(-3, 3)

Step-by-Step

-3-3/2=-6/2= -3
6-0/2= 6/2 = 3

(-3,3)

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Expand

Simplify 0.9x + 1.26 - 2.3 + 0.1 * x to x - 1.04

add 1.04 to both sides

simplify 1.6 + 1.04 to 2.64

Answer: x = 2.64

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6. Marcus sold 6 pizzas. Sue sold 4 pizzas.

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Answer:

6*$10= $60

4*$10=$40

60+40= $100

$100

Step-by-step explanation:

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