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Usimov [2.4K]
3 years ago
13

I need help with this asap

Mathematics
2 answers:
shepuryov [24]3 years ago
6 0

Answer:

option C

Step-by-step explanation:

Because it increases with the same rate of 22.5.

To check that you can find the slope of the graph using two points from the graph.

I will take (1, 22.5) and (2, 45).

slope = \frac{y_2-y_1}{x_2-x_1} = \frac{45-22.25}{2-1} = 22.5

Aleksandr [31]3 years ago
3 0
I need point sorry for wasting your time
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Annette [7]
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ITS JUST A REVIEW but i need help
vodomira [7]

Answer:00,7

Step-by-step explanation:

7 0
3 years ago
What is the image of (-9,6) after a dilation by a scale factor of 44 centered at the origin?
vagabundo [1.1K]

Answer:

(- 396, 264 )

Step-by-step explanation:

Since the dilatation is centred at the origin, then multiply each of the coordinates of the point by the scale factor, that is

(- 9, 6 ) → ( (- 9 × 44 ), (6 × 44 ) ) = ( - 396, 264 )

5 0
3 years ago
Find the slope of the line going through the points 2, -3 and -1, 15
Evgen [1.6K]

Answer:

<h2>-6</h2>

Step-by-step explanation:

The formula of a slope:

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

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Substitute:

m=\dfrac{15-(-3)}{-1-2}=\dfrac{15+3}{-3}=\dfrac{18}{-3}=-6

7 0
3 years ago
Read 2 more answers
A. For what values of k does the function y = cos(kt) satisfy the differential equation 25y'' = −16y?
avanturin [10]

Answer:

Step-by-step explanation:

Given y = coskt

y' = -ksinkt

y'' = -k²coskt

Substitute this y'' into the expression 25y'' = −16y

25(-k²coskt) = -16(coskt)

25k²coskt = 16(coskt)

25k² = 16

k² = 16/25

k = ±√16/25

k = ±4/5

b) from the DE 25y'' = −16y

Rearrange

25y''+16y = 0

Expressing using auxiliary equation

25m² + 16 = 0

25m² = -16

m² = -16/25

m = ±4/5 I

m = 0+4/5 I

Since the auxiliary root is complex number

The solution to the DE will be expressed as;

y = Asinmt + Bsinmt

Since k = m

y = Asinkt+Bsinkt where A and B are constants

5 0
3 years ago
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