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swat32
3 years ago
13

Hello there!

Mathematics
1 answer:
djyliett [7]3 years ago
5 0

2. f(x) = x - 2x² - 5 + 10x

=-2x² + 8x - 5

f'(x)= -4x + 8

4. y = 100(45x - 30 - 3x³ + 2x²)

= 100(-3x³ + 2x² + 45x -30)

= -300x³ + 200x² + 4500x - 3000

y' = -900x² + 400x + 4500

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53 - 9y = 1<br> -7.2 + 2y = -5
telo118 [61]

Answer:

1.1, -5

Step-by-step explanation:

53 - 9y = 1

from equation i

53-9y = 1

-9y= 1-53 = -52

y = -52/-9= 52/9 = 5⁷/₉

-7.2 + 2y = -5

add 7.2 to both sides

2y= -5+7.2 = 2.2

y= 2.2/2 = 1.1

7 0
3 years ago
Hmm which one? Need it asap and will gift brainlest for answer
Gala2k [10]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
Write an expression to show the sum of fourteen and triple eight.
katrin [286]
<span>14x8³

have a good day!! :)
hope this helps!!! :D
plz give brainliest!! XD</span>
8 0
3 years ago
G. r. a. p. h. 24x-6y=18.
FinnZ [79.3K]
24x−6y=18 Step 1: Add 6y to both sides. 24x−6y+6y=18+6y24x=6y+18

Step 2: Divide both sides by 24.24x24=6y+1824x=14y+34

Answer: x=14y+34
6 0
2 years ago
A scale drawing of a kitchen is shown below. The scale is 1 : 20.
Arada [10]

Answer:

0.138889

Step-by-step explanation:

formula is to divide by 144

which first you multiply 5×4 which gives you 20

therefore 20÷144

=0.138889

3 0
2 years ago
Read 2 more answers
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