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Mekhanik [1.2K]
3 years ago
12

-3x - (2y)^2 pls help

Mathematics
1 answer:
DENIUS [597]3 years ago
8 0

Answer:

- 3x - 4y ^{2}

Step-by-step explanation:

- 3 - 2 ^{2} y ^{2}

- 3x - 4y ^{2}

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She rides for 17.6 kilometers at a speed of 11 kilometers per hour. For how many hours does she ride?
inn [45]
Speed = Distance/Time

Time = Distance/Speed

Time = 17.6/11

= 1.6 hrs
8 0
3 years ago
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The parent function, f(x) = 5^x, has been vertically compressed by a factor of one-half, shifted to the left three units and dow
Alona [7]

Answer: Choice C

\displaystyle g(x) = \left(\frac{1}{2}\right)5^{x+3}-2

=====================================================

Explanation:

The 1/2 out front handles the vertical compression by 1/2. For example, if two points are vertically spaced by 10 units, then their new vertical distance is now (1/2)*10 = 5 units.

The x+3 in the exponent means "shift 3 units to the left". Effectively what's going on is that the old input x is now x+3, ie 3 units larger than before. This shifts the xy axis itself 3 units to the right. If we held the curve fixed in place while the xy axis moved like this, then it gives the illusion the curve is moving 3 units to the left.

Then finally the -2 at the very end shifts the curve down 2 units. This is because whatever the y coordinate is, we subtract 2 from it to do this vertical shifting. For example, the point (0,62.5) shifts 2 units down to (0,60.5)

8 0
2 years ago
James is participating in 5 mike walk to raise money. He received $200 and raised &$20 extra for each mile he walks. Use poi
Karo-lina-s [1.5K]

y = 20x + 200
y = 20(5) + 200
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7 0
3 years ago
I need help please help me
iogann1982 [59]

<u>M</u><u>e</u><u>t</u><u>h</u><u>o</u><u>d</u><u> </u><u>1</u><u> </u><u>:</u>

replace x and y by their value 1 and 3

3 = 4(1) - 1 = 4-1 = 3

2(1) + 3 = 2 + 3 = 5

correct

<u>M</u><u>e</u><u>t</u><u>h</u><u>o</u><u>d</u><u> </u><u>2</u><u> </u><u>:</u>

y = 4x - 1

2x + y = 5

y = 4x - 1

y = -2x + 5

y - y = 4x - 1 - ( -2x + 5 )

0 = 4x - 1 + 2x - 5

6x - 6 = 0

6x = 6

x = 6/6 = 1

y = 4x - 1

y = 4(1) - 1

y = 3

correct

4 0
2 years ago
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Please answer this correctly without making mistakes
IrinaVladis [17]

Answer:

\boxed{\sf 319:3388}

Step-by-step explanation:

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Total number of first-class tickets = Total number of tickets sold - Total number of coach tickets

= 3388 - 3069

= 319

\therefore

Ratio of the number of first-class tickets to the total number of tickets = 319:3388

8 0
3 years ago
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