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3 years ago

When do I compare real-world numbers?

1 answer:

3 0

The first aim of the numerations and numbers in general is to be able to compare things and to know what is bigger and what is smaller.
We compare numbers every day in our daily routine. For example: on the market, we compare the price of the products (the price of the apples for example refers to a real-world number). Or we compare the temperature during the day and during the night, which is also a real-world number.

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Three years ago, Jolene bought $625 worth of stock in a software company. Since then the value of her

Lesechka [4]

Answer:

The stock is worth 765.65 today.

Step-by-step explanation:

$$625*1.07^{3}$ =765.65

8 0

2 years ago

A(x+1)(x-1)+b(x-2)(x+1)+(x+1)^2=9x-x-10 What is a+b?

igor_vitrenko [27]

a(x+1)(x-1)+b(x-2)(x+1)+(x+1)^2=9x^2-x-10

(x+1)(a(x-1)+b(x-2)+(x+1))=(x+1)(9x-10)

a(x-1)+b(x-2)+x+1=9x-10

Now this equation is much simpler!

(a+b)x-a-2b+x+1=9x-10

(a+b)x-a-2b=8x-11

(a+b-8)x-a-2b-11=0

a+b-8=(a+2b-11)/x

I can't solve it 3 variables and 1 equations means infinite answers so yea.

4 0

3 years ago

During a musical, an orchestra is playing. As the music plays, the volume changes at the beginning of the piece can be modeled b

Ivanshal [37]

Answer:

what

Step-by-step explanation:

...

5 0

3 years ago

Read 2 more answers

Use l'Hôpital's Rule to find the following limit. ModifyingBelow lim With x right arrow 0StartFraction 3 sine (x )minus 3 x Ove

steposvetlana [31]

Answer:

$\lim_{x \to 0} \frac{3sinx-3x}{7x^3}=-\frac{1}{14}$

Step-by-step explanation:

The limit is:

$\lim_{x \to 0} \frac{3sinx-3x}{7x^3}=\frac{0}{0}$

so, you have an indeterminate result. By using the l'Hôpital's rule you have:

$\lim_{x \to 0} \frac{a(x)}{b(x)}= \lim_{x \to 0} \frac{a'(x)}{b'(x)}$

by replacing, and applying repeatedly you obtain:

$\lim_{x \to 0} \frac{3sinx-3x}{7x^3}= \lim_{x \to 0}\frac{3cosx-3}{21x^2}= \lim_{x \to 0}\frac{-3sinx}{42x}= \lim_{x \to 0}\frac{-3cosx}{42}\\\\ \lim_{x \to 0} \frac{3sinx-3x}{7x^3}=\frac{-3cos0}{42}=-\frac{1}{14}$

hence, the limit of the function is -1/14

8 0

3 years ago

Find the volume of the cone.

frutty [35]

Answer:5

Step-by-step explanation:

Because

7 0

2 years ago