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77julia77 [94]
2 years ago
9

I WILL AWARD BRAINLIEST!!!!!!!!!!! PLEASE HELP!!!!!!!!! SOLVE A, B, C, AND D!!!!

Mathematics
1 answer:
marta [7]2 years ago
8 0

Answer:

im not sure if this is correct or not because i didnt check my work all the way or use a calculator and if im wrong im extremely sorry !!. . .

Step-by-step explanation:

a) one unit up::: y = |2x|  

b) one unit down:::y = |2x|-2  

c) one unit to the left:: y = |2(x+1)|-1

d) one unit to the right::: y = |2(x-1)|-1

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Which of the following best describes the parallelograms shown below?​
Nesterboy [21]

Answer:

The statement "Parallelogram 1 and parallelogram 2 are similar because parallelogram 2 can be created by rotating, reflecting, translating and dilating parallelogram 1" is correct.

Step-by-step explanation:

This statement is correct because the two shapes cannot be congruent; parallelogram 2 is a different size than parallelogram 1. They must be similar, and the third statement is the only statement with a dilation.

8 0
2 years ago
A. For what values of k does the function y = cos(kt) satisfy the differential equation 25y'' = −16y?
Oduvanchick [21]

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

6 0
3 years ago
How much is 4817 times 818?
Free_Kalibri [48]
3940306 im new in this app, hey guys !
8 0
2 years ago
Read 2 more answers
What is the slope-intercept form of the function described by this table?
Pavel [41]

Answer:

y = -4x +2

Step-by-step explanation:

As x-values increase by 1, y-values decrease by 4. The slope of the line is ...

... m = (change in y)/(change in x) = -4/1 = -4

We can use the first (x, y) pair as a point to use in the point-slope form of the equation of a line. That form can be written, for slope m and point (h, k) ...

... y = m(x -h) +k

using m = -4 and (h, k) = (1, -2), we can fill in the numbers to get ...

... y = -4(x -1) -2

... y = -4x +4 -2 . . . . eliminate parentheses

... y = -4x +2 . . . . . . slope-intercept form

_____

<em>Alternate approach</em>

After you recognize that a change in x of 1 gives a change in y of -4, you can work backward one step to find the table value for y corresponding to x=0. That will be -2+4 = +2. Now, you know both the slope (-4) and the y-intercept (+2), so you can write the equation directly from this knowledge:

... y = -4x +2

7 0
2 years ago
Math help!!!!! thanks!!!!!!!
astraxan [27]
PEMDAS
We start with exponents.
4 x 4 is 16
12 divided by 3 is 4
4 times 5 is 20
20-16 is 4
4 is the answer.
5 0
2 years ago
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