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2 years ago

Find the distance between the two points rounding to the nearest tenth (if necessary). (-1,8) and (8,5)

Mathematics

1 answer:

Cloud [144]2 years ago

4 0

Your answer to is 9.5

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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 $\frac{13}{4}$

5 0

3 years ago

I’ve Tried solving this and i just can’t get it , 64 = 4 + 12g

Alika [10]

Answer:

Step-by-step explanation:

64 = 4 + 12g

64 - 4 = 12g

60 = 12g

60 / 12 = g

5 = g

g = 5

8 0

2 years ago

Which polynomials are in standard form?

Ksivusya [100]

b/c when it's rearranged large to small

4 0

2 years ago

The are of a shaded region is 118 ft squared. Which equation can be- used to find the value of X, in feet?

Triss [41]

Answer:

$x^2+ 18x -130=0$

Step-by-step explanation:

Given

See attachment for diagram

Required

The equation to find x

First, calculate the area of the big rectangle using:

$Area = Length * Width$

So:

$A_1 = (x + 6) * (3x - 2)$

The smaller rectangle

$A_2 = (x - 1) * (2x)$

The difference between this areas give the area of the shaded region.

So:

$A_1 - A_1 = 118$

$(x+6)*(3x-2) - (x-1)*2x = 118$

Open brackets

$3x^2 - 2x + 18x -12 -2x^2 +2x = 118$

Collect like terms

$3x^2 -2x^2- 2x +2x+ 18x -12 - 118=0$

$x^2+ 18x -130=0$

The above equation can be used to solve for x

4 0

2 years ago

Please help Question: 6b = 18 Answer: ?

ratelena [41]

Answer:

6b=18

b=18/6

b=3

3 0

2 years ago

Read 2 more answers

Find the distance between the two points rounding to the nearest tenth (if necessary). (-1,8) and (8,5)​

Find the distance between the two points rounding to the nearest tenth (if necessary). (-1,8) and (8,5)