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EleoNora [17]
3 years ago
6

Find the equation of the line. y=?x+? lol helppp please

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
6 0

Answer:

y=3/4x+(-2) aka the first blank is 3/4 the second blank is -2

Step-by-step explanation:

The first blank is the slope, the second one shows the y-intercept. You are welcome

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On Sunday, a local hamburger shop sold a combined of 572 hamburger and cheeseburger. The number of cheeseburgers sold was three
igor_vitrenko [27]
Answer: 143 hamburgers and 429 cheese burgers

Explanation:

Call h and c the number of both items.
(h-hamburger and c-cheeseburger)

h + c = 572
c = 3h

Sub the second into the first

h + 3h = 572
4h = 572

Divide both sides by 4
h = 143 hamburgers

Use this back into the second equation
c = 3 • 143 = 429 cheeseburgers

3 0
3 years ago
Show that the points (0.-1).(2, 1).(0.3) and (-2, 1) are the vertices of a square ABCD.
Inessa05 [86]

The diagram is below

  • A = (0,-1)
  • B = (2,1)
  • C = (0,3)
  • D = (-2,1)

Let's find the distance from A to B using the distance formula.

d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}\\\\d = \sqrt{(0-2)^2 + (-1-1)^2}\\\\d = \sqrt{(-2)^2 + (-2)^2}\\\\d = \sqrt{4 + 4}\\\\d = \sqrt{8}\\\\d \approx 2.828\\\\

The distance from A to B is exactly \sqrt{8} units or approximately 2.828 units. This is the length of side AB.

Through very similar steps, you should find that the other side lengths of BC, CD and AD are all the same.

Since AB = BC = CD = AD, this means we have a rhombus. Recall a rhombus is any quadrilateral with all four sides the same length.

-----------------------------

Let's find the slope of line AB

m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}\\\\m = \frac{1 - (-1)}{2 - 0}\\\\m = \frac{1 + 1}{2 - 0}\\\\m = \frac{2}{2}\\\\m = 1\\\\

Line AB has a slope of 1.

Through similar steps, you should find the slope of line BC is -1.

Rule: Whenever two slopes multiply to -1, then their corresponding lines are perpendicular.

Based on that rule, lines AB and BC are perpendicular. This means they meet up at a right angle (aka 90 degree angle).

You should find that line CD has a slope of 1, so BC and CD are perpendicular. Lastly, line AD has a slope of -1. So all the slopes mentioned are either +1 or -1. The slopes alternate as you move around the figure. This all shows that any two adjacent sides meet at a 90 degree angle.

Therefore, this figure is a rectangle. Any rectangle has all four angles of 90 degrees.

-----------------------------

The first section showed that we have a rhombus. The second section afterward showed that we also have a rectangle. The combination of a rhombus and a rectangle at the same time leads to a square.

Therefore, quadrilateral ABCD is a square.

5 0
2 years ago
Winston earns $140.00 by selling 56 hot dogs at the concession stand at school. Using the same rate for
Free_Kalibri [48]

Answer:

140/56= 2,5$ every hot dog

175/2,5=70 hot dogs

70-56=14 more hot dogs to earn 175$

Step-by-step explanation:

7 0
2 years ago
Determine whether each equation represents a proportional relationship.<br> y=2.5x<br> y=x−4
mamaluj [8]

Answer:

yes

no

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Lisa Leslie went to Good Year and purchase two tires for her Range Rover. The total purchase price was $399.37. What was the pri
iragen [17]

Answer: 199.69

Step-by-step explanation:

399.37 divided by 2 bc that’s how many tires she bought

6 0
2 years ago
Read 2 more answers
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