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Gwar [14]
2 years ago
9

What is the slope of a trend line that passes through the points (5, 80) and (7, 65)?

Mathematics
2 answers:
Leni [432]2 years ago
6 0

Answer:

-15/2

Just took the test.

Vlad [161]2 years ago
4 0

Answer:

-15/2 or -7.5 or -7½

Negative StartFraction 15 Over 2 EndFraction

Step-by-step explanation:

Slope or gradient of a line is the ratio of change in y co-ordinates to the change in x co-ordinates.

Therefore;

M=∆y÷∆x

The change in y co-ordinates is given by

∆y=y2-y1

Similarly, change in x co-ordinates is given by

∆x=x2-x1

Given the two points as (5, 80) and (7, 65)

X1=5 Y1=80

X2=7 Y2=65

∆y=65-80=-15

∆x=7-5=2

Hence ∆y÷∆x will be -15÷2=-7.5 or -7½

Negative StartFraction 15 Over 2 EndFraction

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22 gose into 988 8 times 
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2 years ago
At the Souvenir Shop, gemstone souvenirs cost $11.60 for 5. Which proportion can be used to find the cost of just 1 gemstone?
Assoli18 [71]

$2.32

$11.60 divide by 5

3 0
3 years ago
Read 2 more answers
Jada is standing 10 feet from the base of the tree and spots a nest sitting on a branch. the angle of elevation from the ground
kogti [31]

Answer:

h = (10 ft)(1.428) = 14.28 ft

Step-by-step explanation:

Represent the height of the nest by h.  This is the vertical side of a triangle.  The horizontal side is 10 ft.

The following relationship is true:

tan 55 degrees = (opposite side) / (adjacent side), and in this case,

tan 55 degrees = h / 10 ft, so that:

h = height of nest = (10 ft)(tan 55 degrees), or

h = (10 ft)(1.428) = 14.28 ft

8 0
3 years ago
Arrange in ascending order<br> a) 2⁄5, -1⁄6, -11/30
nikitadnepr [17]

Answer:

-11/30, -1/6, 2/5

Step-by-step explanation:

first, make the question in the same denominator

= 12/30, -5/30, -11/30

= -11/30, -5/30, 12/30

= -11/30, -1/6, 2/5

8 0
2 years ago
Find the y please use the screen shot
Vikki [24]

Answer:

y = 0.3

Step-by-step explanation:

Solve for y:

\longrightarrow (3.2y - 1.8) - (5.2 y + 3.4) = -5.8

-(5.2y + 3.4) = -5.2y - 3.4:

\longrightarrow3.2y - 1.8 -5.2y - 3.4 = -5.8

Grouping like terms, 3.2y - 1.8 - 5.2y - 3.4 = (3.2y - 5.2y) + (-1.8 - 3.4):

\longrightarrow (3.2y - 5.2y) + (-1.8 - 3.4) = -5.8

3.2y - 5.2y = -2 y:

\longrightarrow -2y + (-1.8 - 3.4) = -5.8

-1.8 - 3.4 = -5.2:

\longrightarrow -5.2 - 2y = -5.8

Add 5.2` to both sides:

\longrightarrow (5.2 - 5.2) - 2y = 5.2 - 5.8

5.2 - 5.2 = 0:

\longrightarrow -2y = 5.2 - 5.8

5.2 - 5.8 = -0.6:

\longrightarrow -2y = -0.6

Divide both sides of -2y = -0.6 by -2:

\longrightarrow \sf \dfrac{-2}{-2}y = \dfrac{-0.6}{-2}

\sf \dfrac{-2}{-2} = 1:

\longrightarrow \sf y = \dfrac{-0.6}{-2}

\sf \dfrac{-0.6}{-2} = 0.3:

\longrightarrow y = 0.3

5 0
3 years ago
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