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lawyer [7]
3 years ago
13

What is a quadrilateral?

Mathematics
2 answers:
Brut [27]3 years ago
8 0
A four-sided shape/figure
QveST [7]3 years ago
7 0
A quadrilateral is any four-sided figure with four straight lines. Hope this helps! :-)
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Ax + By = C represent the lineAn egg is dropped straight down from a diving board whose end is 7 ft from the edge of the pool, w
Katen [24]

Answer:

  A = 1, B = 0, C = 7

Step-by-step explanation:

The egg follows the path x = 7, so the equation is ...

  1x +0y = 7

A = 1, B = 0, C = 7

6 0
3 years ago
Read 2 more answers
Consider the equality xy k. Write the following inverse proportion: y is inversely proportional to x. When y = 12, x=5.​
skelet666 [1.2K]

Answer:

y=\dfrac {60} {x}   or   xy=60   (depending on your teacher's format preference)

Step-by-step explanation:

<h3><u>Proportionality background</u></h3>

Proportionality is sometimes called "variation".   (ex. " 'y' varies inversely as 'x' ")

There are two main types of proportionality/variation:

  1. Direct
  2. Inverse.

Every proportionality, regardless of whether it is direct or inverse, will have a constant of proportionality (I'm going to call it "k").

Below are several different examples of both types of proportionality, and how they might be stated in words:

  • y=kx      y is directly proportional to x
  • y=kx^2     y is directly proportional to x squared
  • y=kx^3     y is directly proportional to x cubed
  • y=k\sqrt{x}}   y is directly proportional to the square root of x
  • y=\dfrac {k} {x}   y is inversely proportional to x
  • y=\dfrac {k} {x^2}   y is inversely proportional to x squared

From these examples, we see that two things:

  • things that are <u>directly proportional</u> -- the thing is <u>multipli</u>ed to the constant of proportionality "k"
  • things that are <u>inversely proportional</u> -- the thing is <u>divide</u>d from the constant of proportionality "k".

<h3><u>Looking at our question</u></h3>

In our question, y is inversely proportional to x, so the equation we're looking at is the following y=\dfrac {k} {x}.

It isn't yet clear what the constant of proportionality "k" is for this situation, but we are given enough information to solve for it:  "When y=12, x=5."

We can substitute this known relationship pair, and find the "k" that relates this pair of numbers:

<h3><u>Solving for k, and finding the general equation</u></h3>

General Inverse variation equation...

y=\dfrac {k} {x}

Substituting known values...

(12)=\dfrac {k} {(5)}

Multiplying both sides by 5...

(12)*5= \left ( \dfrac {k} {5} \right ) *5

Simplifying/arithmetic...

60=k

So, for our situation, k=60.  So the inverse proportionality relationship equation for this situation is y=\dfrac {60} {x}.

The way your question is phrased, they may prefer the form: xy=60

7 0
2 years ago
There are 16 cherry trees in Oliver's orchard, and he wants to plant more. It takes him an hour to plant each tree. Let h repres
deff fn [24]

Answer:

16+h=c

Step-by-step explanation:

7 0
3 years ago
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Does 8/18 terminates or repeats
sammy [17]
It terminates your welcome
4 0
3 years ago
Find the Interquartile Range for Marcus's data.<br> A.4.5<br> B.2<br> C.6<br> D.2.5
Anna007 [38]
<h3>Answer:  B. 2</h3>

How I got that answer:

The data set for Marcus is

2, 3, 5, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 9, 10, 10

The five number summary is

  • min = 2
  • Q1 = 6
  • median = 7
  • Q3 = 8
  • max = 10

So the interquartile range (IQR) is

IQR = Q3 - Q1

IQR = 8 - 6

IQR = 2

6 0
3 years ago
Read 2 more answers
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