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vivado [14]
3 years ago
8

Can someone help me with this please??

Mathematics
1 answer:
lozanna [386]3 years ago
4 0
The answers are :

x-5 and x+1
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What is 224 7/10 written as a decimal
andrew11 [14]

Answer:

224.7

Step-by-step explanation:

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3 years ago
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Please answer this correctly
Elina [12.6K]

Answer:

5

Step-by-step explanation:

There are two ways you can solve this. First is to just count all the numbers in the list given that are within the range 15-19. This is an inclusive range meaning the numbers 15 and 19 are a part of it. The second method is to count how many numbers are in the list given and count all the numbers that have already been put on the table. There are 19 total numbers, and 14 have already been counted. If you subtract you are left with 5 numbers that are within the range. So the answer is 5.

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3 years ago
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3√x -2/x^2<br><br>please show step by step of differentiation before combining the terms. ​
EastWind [94]

Answer:

Step-by-step explanation:

Before we differentiate, let us assign a variable to the function. Let y be equal to the function i.e let y = 3√x -2/x²

In differentiation if y = ax^{n}, then \frac{dy}{dx} = nax^{n-1} where n is a constant and dy/dx means we are differentiating the function y with respect to x.

Applying the formula o the question given;

y= 3\sqrt{x}  -2/x^2\\y = 3{x}^\frac{1}{2}  - 2x^{-2} \\\\

On differentiating the resulting function;

\frac{dy}{dx} = \frac{1}{2}*3x^{\frac{1}{2}-1 }   - (-2)x^{-2-1} \\\\\frac{dy}{dx} = \frac{1}{2}*3x^{-\frac{1}{2}} + 2x^{-3}\\ \\\frac{dy}{dx} = \frac{1}{2}*{\frac{3}{x^{\frac{1}{2} } }} + \frac{2}{x^{3} } \\\\\frac{dy}{dx} = {\frac{3}{2x^{\frac{1}{2} } }} + \frac{2}{x^{3} }\\\\\frac{dy}{dx} = {\frac{3}{2\sqrt{x}  }} + \frac{2}{x^{3} }

To combine the terms, we will add up by finding their LCM.

\frac{dy}{dx} = {\frac{3}{2\sqrt{x}  }} + \frac{2}{x^{3} }\\\frac{dy}{dx}  = \frac{3x^3+4\sqrt{x} }{2x^{3} \sqrt{x}}

3 0
4 years ago
Ayako and Joshua have a total of 59 sweets between them.
andreyandreev [35.5K]
A+j=59 so j=59-a

and j=a-3

j=j so

59-a=a-3  subtract a from both sides

59-2a=-3  subtract 59 from both sides

-2a=-62  divide both sides by -2

a=31

n=a=31

Ayako has 31 sweets.
4 0
3 years ago
The area of a polygon is the number of square units contained in its interior true or false
Alexeev081 [22]
Area is the measurement of the length and width which is in square units such as square inches, square feet and square meters. Therefore, the answer of the given statement above is TRUE. The area of a polygon is the number of square units contained in its interior. 
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