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2 years ago

If a =2, find 4a + 18

Mathematics

2 answers:

FinnZ [79.3K]2 years ago

6 0

4×2+18

= 8+18

=26....

answer is 26..

ankoles [38]2 years ago

3 0

Answer:

i think

Step-by-step explanation:

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Which number is 5.389 rounded to the nearest hundredth? A 5.4 B 5.38 © 5.39 05.399

ankoles [38]

Answer:

c) 5.39

Step-by-step explanation:

The digit that is in the hundredths place is the 8. (The hundredths are two digits to the right of the point).

The thousandths in this case would be the 9, since the 9 is close to the next hundredth, the nearest hundredth would be 9 (adding 1 to the 8), therefore the number would be 5.39

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3 years ago

What is the simplified fraction for 6%?

mr Goodwill [35]

Answer:

6/10?

Step-by-step explanation:

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3 years ago

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"How are straight angles different from right angles?" Is this a statement? <br> yes or no

Arturiano [62]

No, this is a question.

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3 years ago

Find the general indefinite integral. (Use C for the constant of integration. Remember to use absolute values where appropriate.

Maru [420]

Answer:

$9\text{ln}|x|+2\sqrt{x}+x+C$

Step-by-step explanation:

We have been an integral $\int \frac{9+\sqrt{x}+x}{x}dx$ . We are asked to find the general solution for the given indefinite integral.

We can rewrite our given integral as:

$\int \frac{9}{x}+\frac{\sqrt{x}}{x}+\frac{x}{x}dx$

$\int \frac{9}{x}+\frac{1}{\sqrt{x}}+1dx$

Now, we will apply the sum rule of integrals as:

$\int \frac{9}{x}dx+\int \frac{1}{\sqrt{x}}dx+\int 1dx$

$9\int \frac{1}{x}dx+\int x^{-\frac{1}{2}}dx+\int 1dx$

Using common integral $\int \frac{1}{x}dx=\text{ln}|x|$ , we will get:

$9\text{ln}|x|+\int x^{-\frac{1}{2}}dx+\int 1dx$

Now, we will use power rule of integrals as:

$9\text{ln}|x|+\frac{x^{-\frac{1}{2}+1}}{-\frac{1}{2}+1}+\int 1dx$

$9\text{ln}|x|+\frac{x^{\frac{1}{2}}}{\frac{1}{2}}+\int 1dx$

$9\text{ln}|x|+2x^{\frac{1}{2}}+\int 1dx$

$9\text{ln}|x|+2\sqrt{x}+\int 1dx$

We know that integral of a constant is equal to constant times x, so integral of 1 would be x.

$9\text{ln}|x|+2\sqrt{x}+x+C$

Therefore, our required integral would be $9\text{ln}|x|+2\sqrt{x}+x+C$ .

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2 years ago

the map shows Henry's town . Each unit represents 1 kilometer. After school, Henry walks to the library. How far does he walk?

ivann1987 [24]

Answer:

Henry walks 7 kilometres from school to library

Step-by-step explanation:

Given:

1 unit = 1 Kilometre

To Find:

The distance between the library and the school

Solution:

The map below shows that Henry has walked from

-2 coordinate in the x axis to coordinate 5 along the same x axis

So he has walked a total of 7 units

Since we know that 1 unit = 1 Kilometre,

7 units will be

=> 7 x 1

=> 7 Kilometres

3 0

3 years ago

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