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3 years ago

6 and 1 half feet ×7 and 1 half feet × 16 feet?

Mathematics

1 answer:

oksian1 [2.3K]3 years ago

6 0

Answer:

780 feet

Step-by-step explanation:

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Please help me... thank you

DanielleElmas [232]

Slope-intercept form:

y = mx + b

"m" is the slope, "b" is the y-intercept (the y value when x = 0) or (0,y)

For lines to be parallel, they have to have the SAME slope.

For lines to be perpendicular, their slopes have to be the opposite/negative reciprocals (flipped sign and number)

For example:

slope is 2

perpendicular line's slope is -1/2

slope is -2/3

perpendicular line's slope is 3/2

9.) First find the slope of line PQ. Use the slope formula and plug in the two points.

P = (4, 1) (x₁ , y₁)

Q = (8, 4) (x₂ , y₂)

$m= \frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$m=\frac{4-1}{8-4}$

$m=\frac{3}{4}$

Line RS is parallel to line PQ, so they have the same slope of 3/4

$y=\frac{3}{4}x+b$

To find "b", plug in the point R = (3, -2) into the equation

$y=\frac{3}{4}x+b$

$-2=\frac{3}{4}(3)+b$

$-2=\frac{9}{4}+b$ Subtract 9/4 on both sides

$-2-\frac{9}{4}=b$ Make the denominators the same

$-\frac{8}{4} -\frac{9}{4}=b$

$-\frac{17}{4}=b$

$y = \frac{3}{4}x- \frac{17}{4}$

10.) Find the slope of line PQ

$m= \frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

$m=\frac{4-1}{8-4} =\frac{3}{4}$

Line RS is perpendicular to line PQ, so the slope of line RS is -4/3

y = -4/3x + b

Plug in the point R = (3, -2) into the equation to find "b"

y = -4/3x + b

-2 = -4/3(3) + b

-2 = -4 + b Add 4 on both sides

2 = b

$y = -\frac{4}{3}x+2$

8 0

3 years ago

Work out the answers to:

timofeeve [1]

Answer:

a) 50

b) 400

c) 8

d) 200

Step-by-step explanation:

a) 5 divided 0.1

$\frac{5}{0.1} = \frac{5 \times 10}{0.1 \times 10} = \frac{50}{1} = 50$

b) 8 divided 0.02

$\frac{8}{0.02} = \frac{8 \times 100}{0.02 \times 100} = \frac{800}{2} = 400$

c) 2.4 divided 0.3

$\frac{2.4}{0.3} = \frac{2.4 \times 10}{0.3 \times 10} = \frac{24}{3} = 8$

d) 32 divided 0.16

$\frac{32}{0.16} = \frac{32 \times 100}{0.16 \times 100} = \frac{32 \times 100}{16} = 200$

7 0

3 years ago

Read 2 more answers

Please help UwU<br> if correct you get Brainiest

ladessa [460]

Answer: C

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Evaluate the expression |-16|-|-2|

DIA [1.3K]

<h2>Answer:</h2><h2>14</h2><h2></h2><h2>Hope this helps!!</h2>

5 0

3 years ago

Read 2 more answers

What is the equation of the line that passes through point (4,12) and has a y-intercept of -2?

Georgia [21]

Option B:

The equation of a line is $y=\frac{7}{2}x-2$ .

Solution:

Given data:

Line passing through the point (4, 12).

y-intercept of the line = –2

The equation of a line in slope-intercept form is

y = mx + c

where m is the slope and c is the y-intercept.

c = –2

Substitute c = –2 in slope-intercept form.

y = mx – 2 – – – – (1)

To find m, substitute (4, 12) in the above equation.

12 = m(4) – 2

12 = 4m – 2

Add 2 on both sides of the equation.

14 = 4m

Divide by 2 on both sides of the equation.

$$\frac{14}{4}=m$

$$\frac{7}{2}=m$

Slope = $\frac{7}{2}$

Substitute m value in equation (1), we get

$$y=\frac{7}{2}x-2$

The equation of a line is $y=\frac{7}{2}x-2$ .

Hence Option B is the correct answer.

8 0

3 years ago

6 and 1 half feet ×7 and 1 half feet × 16 feet?​

6 and 1 half feet ×7 and 1 half feet × 16 feet?