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2 years ago

Find the first five terms that correspond with the following expression. 4n + 2

Mathematics

1 answer:

Lorico [155]2 years ago

7 0

Answer:

6,10,14,18,22

Step-by-step explanation:

4n+2

Let n=1 4(1)+2 = 4+2 = 6

Let n=2 4(2)+2 = 8+2 = 10

Let n=3 4(3)+2 = 12+2 = 14

Let n=4 4(4)+2 = 16+2 = 18

Let n=5 4(5)+2 = 20+2 = 22

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1.) Is this number rational or irrational?

Setler79 [48]

Answer:

1) Irrational.

2) Irrational.

Step-by-step explanation:

We have been given two numbers. We are asked to determine whether the given numbers are rational or irrational.

We know that a number is a known as rational number, when we can represent it as a fraction or it has terminating decimals.

A number is a known as rational number, when it has non-repeating and non-terminating decimals.

1). $-\frac{\sqrt{3}}{5}+10.8$

$-0.3464101615137755+10.8=10.4535898384862245$

Since our given number has non-repeating or non-terminating decimal, therefore, given number is an irrational number.

2) $\sqrt{3}=1.7320508075688773$

Since our given number has non-repeating or non-terminating decimal, therefore, given number is an irrational number.

4 0

2 years ago

Nick has to build a brick wall. each row of the wall requires 6² bricks how many bricks will nick need to build the wall.

tatyana61 [14]

Answer:

D. $10*6^2$

Step-by-step explanation:

This fits the problem as long as there were 10 rows. The 10 signifies the number of rows while the $6^2$ is the number of bricks per row. This would be a total of 360 bricks.

5 0

3 years ago

If f(x) and its inverse function, fx), are both plotted on the same coordinate plane, what is their point of intersection?

Lubov Fominskaja [6]

Answer: (3, 3)

Step-by-step explanation:

the graphs of $f$ and $f^{-1$ are flipped: if the point $(x, y)$ is on the graph of $f$ , then the point $(y, x)$ is on the graph of $f^{-1$ .

Any points of intersection will satisfy $(x, y) = (y, x)$ . A point that satisfies this property must have the same x and y coordinate. (Think about it.) The only point on $f$ like that is $(3, 3)$ , so that is the point of intersection.

7 0

1 year ago

Solve the system of equations. (3x + 4y = 5) (2x - 3y = -8)

vovikov84 [41]

Answer:

the solution is (-1, 2)

Step-by-step explanation:

Let's solve the system

(3x + 4y = 5)

(2x - 3y = -8)

using the method of elimination by addition and subtraction. Notice that if we multiply all terms of the first equation by 3 and all terms of the second by 4, y as a variable will temporarily disappear:

9x + 12y = 15

8x - 12y = -32

-----------------------

17x = - 17, so x = -1.

Replacing x in the second equation by -1, we get:

2(-1) - 3y = -8, or

2 + 3y = 8,

or 3y = 6. Thus, y = 2, and the solution is (-1, 2).

5 0

2 years ago

F(x)=x^2-3x+15<br> find f(-8)

Vlada [557]

Answer:

103

Step-by-step explanation:

(-8)²-3(-8)+15

64+24+15

103

8 0

1 year ago