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Trava [24]
3 years ago
14

Please help fast........

Mathematics
1 answer:
Neko [114]3 years ago
8 0

Answer:

b

Step-by-step explanation:

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Jack plotted the graph below to show the relationship between the temperature of his city and the number of ice cream cones he s
timurjin [86]

Answer:

(a) The amount of ice cream increase as temperature increases

(b)

y = 2x + 5 --- equation

y = 5 --- y intercept

m = 2 --- slope

Step-by-step explanation:

Given

See attachment for graph

Solving (a): The relationship between the variables

From the attached graph, the dots on the graph increases towards up-right direction. This implies that there is a positive correlation between the variables.

In other words;

The amount of ice cream increase as temperature increases

Solving (b): The line of best fit

First, we draw a line through the points (the line should have almost equal points on both sides; see attachment 2).

From (2), we select any 2 points on the line:

(x_1,y_1) = (15,35)

(x_2,y_2) = (0,5)

The slope (m) is:

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

m = \frac{5-35}{0-15}

m = \frac{-30}{-15}

m = 2

So, the line of best fit is:

y = m(x - x_1) + y_1

Substitute known values:

y = 2(x - 0) + 5

y = 2(x) + 5

y = 2x + 5

The y-intercept is when x=0

So, we have:

y = 2*0 + 5

y = 0 + 5

y = 5

6 0
3 years ago
what is an equation of the line perpendicular to y+1=-3(x-5) and passes through (4,-6)? please help quick
Fiesta28 [93]

Step-by-step explanation:

The slope of the given line is -3. Since perpendicular lines have slopes that are negative reciprocals of each other, the slope of the line we need to find is 1/3.

Substituting into point slope form, we get:

y + 6 = ⅓(x+6)

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2 years ago
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Josh ate 7/8 pizza and Jerry ate 1/2 pizza. how much more did Josh eat then Jerry​
xz_007 [3.2K]

Step-by-step explanation:

6/5 this is the answer hopes this help

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3 years ago
Someone please answer! 8th grade math question.
yulyashka [42]

Answer: there is 3 terms

Step-by-step explanation: each term is separated by a sybol (addition, substation, multiplication, etc).

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3 years ago
Putting the other player's king in check is always a good move. true or false subject: chess
Elena-2011 [213]

Putting the other player's king in check is always a good move. true

<h3>What is chess?</h3>

  • The policies of chess allow a king to take an opponent's piece whilst in check, so long as that piece isn't always being defended.
  • At the equal time, a king in the test is usually forced to move.
  • The standard regulations of chess, a participant may not make any pass that places or leaves their king in the test.
  • A player may additionally pass the king, seize the threatening piece, or block the check with some other piece.
  • A king cannot look at the opposing king, considering this will vicinity the first king in check as well.

Learn more about chess here:-

#SPJ2

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