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Vilka [71]
3 years ago
6

ANSWER RIGHT NOW FOR BRAINLIST!!!

Mathematics
2 answers:
LenKa [72]3 years ago
5 0

It's goofy to subtract perimeter and area; they're in different units.  We persist.

The area is s^2 and the perimeter is 4s. so the difference is

s^2 - 4s = (3 \sqrt{2})^2 - 4(3\sqrt{2}) = 18 - 12 \sqrt{2}

Answer: choice A

amid [387]3 years ago
5 0

Answer:

Answer: choice A

Step-by-step explanation:

The area is s^2 and the perimeter is 4s. so the difference is

s^2 - 4s = (3 \sqrt{2})^2 - 4(3\sqrt{2}) = 18 - 12 \sqrt{2}

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Simplify this complex fraction.
soldier1979 [14.2K]

answer: 6 3/4

you divide 1/3 by 2 1/4

= 1/3 / 9/4

= 3/1 x 9/4

= 27/4

= 6 3/4

5 0
3 years ago
1. 5. What is the frequency of a wave that has a wave speed of 120 m/s and a wavelength of 0.40 m
balu736 [363]

Answer:

50Hz x .10m = 5 m/s

20 m/s divided by .50m = 40Hz

80 m/s  divided by .20m = 400Hz

120 m/s divided by .40m = 300Hz

340 m/s divided by 440Hz = .77m

8 0
3 years ago
Read 2 more answers
Mathias and Roman are discussing how to simplify the following expression: 7ba3+9a2-9(79a3b-59a2+2ab2). They are writing an equi
levacccp [35]

Answer:

Step-by-step explanation:

3 0
3 years ago
Solve each system of equations (systems with 3 variables)
Natasha2012 [34]

Answer:

x = 2 , y = 5 , z = -1 You are correct!!!

Step-by-step explanation:

Solve the following system:

{9 x + 3 y - 4 z = 37 | (equation 1)

4 x + 3 y + 7 z = 16 | (equation 2)

x - 5 y + 8 z = -31 | (equation 3)

Subtract 4/9 × (equation 1) from equation 2:

{9 x + 3 y - 4 z = 37 | (equation 1)

0 x+(5 y)/3 + (79 z)/9 = (-4)/9 | (equation 2)

x - 5 y + 8 z = -31 | (equation 3)

Multiply equation 2 by 9:

{9 x + 3 y - 4 z = 37 | (equation 1)

0 x+15 y + 79 z = -4 | (equation 2)

x - 5 y + 8 z = -31 | (equation 3)

Subtract 1/9 × (equation 1) from equation 3:

{9 x + 3 y - 4 z = 37 | (equation 1)

0 x+15 y + 79 z = -4 | (equation 2)

0 x - (16 y)/3 + (76 z)/9 = (-316)/9 | (equation 3)

Multiply equation 3 by 9/4:

{9 x + 3 y - 4 z = 37 | (equation 1)

0 x+15 y + 79 z = -4 | (equation 2)

0 x - 12 y + 19 z = -79 | (equation 3)

Add 4/5 × (equation 2) to equation 3:

{9 x + 3 y - 4 z = 37 | (equation 1)

0 x+15 y + 79 z = -4 | (equation 2)

0 x+0 y+(411 z)/5 = (-411)/5 | (equation 3)

Multiply equation 3 by 5/411:

{9 x + 3 y - 4 z = 37 | (equation 1)

0 x+15 y + 79 z = -4 | (equation 2)

0 x+0 y+z = -1 | (equation 3)

Subtract 79 × (equation 3) from equation 2:

{9 x + 3 y - 4 z = 37 | (equation 1)

0 x+15 y+0 z = 75 | (equation 2)

0 x+0 y+z = -1 | (equation 3)

Divide equation 2 by 15:

{9 x + 3 y - 4 z = 37 | (equation 1)

0 x+y+0 z = 5 | (equation 2)

0 x+0 y+z = -1 | (equation 3)

Subtract 3 × (equation 2) from equation 1:

{9 x + 0 y - 4 z = 22 | (equation 1)

0 x+y+0 z = 5 | (equation 2)

0 x+0 y+z = -1 | (equation 3)

Add 4 × (equation 3) to equation 1:

{9 x+0 y+0 z = 18 | (equation 1)

0 x+y+0 z = 5 | (equation 2)

0 x+0 y+z = -1 | (equation 3)

Divide equation 1 by 9:

{x+0 y+0 z = 2 | (equation 1)

0 x+y+0 z = 5 | (equation 2)

0 x+0 y+z = -1 | (equation 3)

Collect results:

Answer:  {x = 2 , y = 5 , z = -1

5 0
3 years ago
I WILL GIVE OUT BRAINLIST!!!!!!
Paraphin [41]

Answer:

The rock's height is always increasing from 0 to 3 seconds. (0,3)

Step-by-step explanation:

The graph rises when x = 0 up until it reaches the vertex, aka where x=3 is.

4 0
3 years ago
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