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Bogdan [553]
3 years ago
12

HELP PLS KIND PPL✨

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
6 0

Answer:

(-4x³ - x²)(8x² - 9) = -32x⁵ - 8x⁴ + 36x³ + 9x²

5x(3x² + 2) = 15x³ + 10x

(3x+ 1)² = 9x² + 6x + 1

(1 + 4x)(1 - 4x) = 1 - 16x²

(3x - 2)(3x - 2) = 9x² - 12x + 4

Step-by-step explanation:

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3 years ago
Plumber A charges $60 an hour. Plumber B charges $40 to visit your home plus $55 for each hour. For how many hours will the tota
GuDViN [60]

Answer:

8 hours

$480

Step-by-step explanation:

Let us assume the hours be x

There should be two equations

For Plumber A = 60x

For Plumber B = 40 + 55x

Now in order to considered the cost to be the same we equate these two equations

60x = 40 + 55x

5x = 40

x = 8 hours

Now the total cost for plumber A is

= 480

And, the total cost for plumber B is

= 40 + 55(8)

= 480

hence, the total cost is $480

6 0
2 years ago
Plz help! Giving away more points than usual!!! Thxs :) (btw the rate of change isn't 8 nor 29, I tried them both like 500 times
o-na [289]

Answer:

rate change: -8

Equation: y = 232 -8x

After 5 hours: 192

Step-by-step explanation:

8 are destroyed every hour, so there are 8 less every hour, so the rate of change is -8

It starts with 232 and loses 8 per hour, so the formula is

y = 232 - 8x

After 5 hours:

y = 232 - 8(5)

    y = 232 - 40

         y = 192

6 0
3 years ago
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