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3 years ago

Is 3.2 irrational or rational?

Mathematics

2 answers:

Keith_Richards [23]3 years ago

8 0

3.2 is a rational number

Levart [38]3 years ago

6 0

Answer:

rational

Step-by-step explanation:

A rational number has the form

$\frac{x}{y} \frac{a}{b}$ ← where a and b are integers

3.2 = $\frac{32}{10}$ ← a rational number

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If you horizontally stretch the quadratic parent function, f(x) = x2, by a factor

Brilliant_brown [7]

Answer:

Step-by-step explanation:

If you horizontally stretch the quadratic parent function, f(x) = x2, by a factor

of 3, what is the equation of the new function?

A. g(x) = 1/3x2

B. g(x) = 3x2

C. g(x) = (3x)2

D. g(x) = (1/3x)2

6 0

3 years ago

What is the constant in the algebraic expression to represent the patter below??

Hitman42 [59]

Answer:

The constant in the algebraic expression to represent the pattern below is 4.

Step-by-step explanation:

Imortant Tip:

An Arithmetic sequence has a constant difference 'd' which can be determined by computing the differences of all the adjacent terms

Given the pattern

$15,11,7,3,-1,...$

computing the differences of all the adjacent terms

$11-15=-4,\:\quad \:7-11=-4,\:\quad \:3-7=-4,\:\quad \:-1-3=-4$

The difference between all the adjacent terms of the pattern is the same which is

$d=-4$

Hence, the given pattern represents the Arithmetic sequence.

Therefore, the constant in the algebraic expression to represent the pattern below is 4.

8 0

3 years ago

Given two vectors A=2i+3j+4k,B=i-2j+3k find the magnitude and direction of sum<br>(physics question)

Law Incorporation [45]

Answer:

$Magnitude =\sqrt{59} \\\\Direction \: of \: \overrightarrow{A + B} = \frac{3}{\sqrt {59}} , \:\frac{1}{\sqrt {59}} , \:\frac{7}{\sqrt {59}}$

Step-by-step explanation:

A=2i+3j+4k

B=i-2j+3k

Sum of the vectors:

A + B = 2i+3j+4k + i-2j+3k = 3i + j + 7k

$Magnitude =\sqrt{3^2 + 1^2+ 7^2} \\\\Magnitude =\sqrt{9+1+49} \\\\Magnitude =\sqrt{59}$

Direction of the sum of the vectors:

$\widehat{A + B} =\frac{\overrightarrow{A + B}}{Magnitude\: of \:\overrightarrow{A + B}} \\\\\widehat{A + B} =\frac{3i + j + 7k}{\sqrt {59}} \\\\\widehat{A + B} =\frac{3}{\sqrt {59}} i +\frac{1}{\sqrt {59}} j+\frac{7}{\sqrt {59}} k\\\\Direction \: of \: \overrightarrow{A + B} = \frac{3}{\sqrt {59}} , \:\frac{1}{\sqrt {59}} , \:\frac{7}{\sqrt {59}} \\\\$

3 0

2 years ago

B. (4,-7)

zvonat [6]

Answer:

b)-3

c)17

d)-11

Step-by-step explanation:

4,-7)

-3

5 0

3 years ago

Complete the ratio- I WILL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST!<br><br> 8:44=1::?

miskamm [114]

Answer:

8 /8 =1

44/8=5,5

so the ratio is 1:5,5

3 0

2 years ago