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3 years ago

What is 1.7x=? When x=5

Mathematics

2 answers:

Degger [83]3 years ago

6 0

Answer:

8.5

Step-by-step explanation:

1.7*5=8.5

babunello [35]3 years ago

4 0

Answer:

Step-by-step explanation:

a = answer

1.7x = a

1.7(5) = a

8.5 = a

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Find the domain and range of these functions. a) the function that assigns to each pair of positive integers the ﬁrst integer of

Sonja [21]

Answer:

a) Domain = N x N, Range = N

b) Domain = N, Range = {1,2,3,....,9}

c) Domain = {0, 1, 00, 01, 10, 11,...}, Range = {.....,-4, -3, -2, -1, 0, 1, 2, 3,......}

d) Domain = {1,2,3,4,.....}, Range = {0, 1, 2, 3, 4,.....}

e) Domain = {0, 1, 01, 10, 11,....}, Range = {1, 11, 111, 1111, 11111,.....}

Step-by-step explanation:

a) The function that assigns to each pair of positive integers the first integer of the pair will have domain equal to all pairs of natural numbers i.e, N x N where N = {1,2,3,.....} since the set of natural numbers has all positive integers.

Domain = {(x,y) | x ∈ N and y ∈ N}

The range is any integer so it will be a set of natural numbers N = {1,2,3,....}

b) Here, we have domain of each positive integer so we will have

Domain = {1,2,3,....}

Range is the largest decimal digit of the positive number which can be any number from 1 to 9

So, Range = {1,2,3,4,....,9}

c) Domain is a bit string i.e.

Domain = {0, 1, 00, 01, 10, 11,...}

The range includes the differences of 1's and 0's in the string. According to this, we can have all positive and non-positive (0 and negative integers) values in the range. So, it will be a set of all integers

Range = {.....,-4, -3, -2, -1, 0, 1, 2, 3,......}

d) We again have domain equal to set of positive integers i.e,

Domain = {1,2,3,4,.....}

Range is the largest integer that does not exceed the square root of the number. According to this, image of 1 will be 0, image of 2 will be 1. So, range will be a set of whole numbers.

Range = {0, 1, 2, 3, 4,.....}

e) Domain = {0, 1, 01, 10, 11,....} (A bit string)

Longest string of ones in the string will give the range

Range = {1, 11, 111, 1111, 11111,.....}

3 0

3 years ago

What is the largest number that can be used to divide 36 other than itself

defon

Answer:

18!

Step-by-step explanation:

36/1=36

36/2=18

36/3=12

36/4=9

36/6=6

36/9=4

36/12=3

36/18=2

4 0

3 years ago

Please help! what polynomial must be added to −5x^3 + 4x − 3 so that the sum is x^2 − x − 1?

lakkis [162]

<h3>Solution:- </h3>

Let the number to be added be A

Now,

$\begin{gathered}\implies\quad \sf −5x^3 + 4x − 3 + A = x^2 − x − 1 \\\end{gathered}$

Transposing (−5x³+ 4x − 3 ) to other side-

$\begin{gathered}\\\implies\quad \sf A = x^2 − x − 1 -( −5x^3 + 4x − 3) \\\end{gathered}$

Remember if there is a -ve sign before a bracket the signs of whole of the terms changes on opening bracket

$\begin{gathered}\\\implies\quad \sf A = x^2 − x − 1 + 5x^3 - 4x + 3\\\end{gathered}$

Putting like terms together -

$\begin{gathered}\\\implies\quad \sf A = 5x^3 +x^2 - x -4x +3 -1 \\\end{gathered}$

$\begin{gathered}\\\implies\quad \sf A = 5x^3 +x^2 -5x +2 \\\end{gathered}$

$\longrightarrow$ Therefore, 5x³+x²-5x +2 should be added to −5x³+ 4x − 3 to get x²− x − 1

6 0

3 years ago

A section of land has an area of 1 square mile and contains 640 acres. determine the number of square meters in an acre

Leto [7]

1 mile = 1760 yards
1 squre mile = 1760^2 yd^2 = 3097600 yd^2
This means that
Each acre has (3097600 yd^2/ sq. mile ) / (640 acres/sq. mile(= 4840 yd^2 / acre

Also, we know that 1 inch = 2.54 cm exactly.
Therefore
1 yd = 3*12*2.54 cm = 91.44 cm = 0.9144 m
1 yd^2 = (0.9144 m)^2 = 0.83612736 m^2

Using the conversion from acre to sq yards,
1 acre=4840 yd^2
=4840 yd^2 * 0.83612736 m^2 / yd^2
= 4046.8564224 m^2

Answer: 1 acre = 4046.8564224 m^2

6 0

4 years ago

Who was Radius helping when he discovered that the "magic number was more than 3"?

Strike441 [17]

Answer:

Radius was helping his father Sir Cumference.

Explanation:

The question above is related to the mathematical adventure story entitled "Sir Cumference and the Dragon of Pi."

Radius was the son of Sir Cumference and Lady Di of Ameter. One day, Sir Cumference drank a potion which turned him into a dragon. In order to restore his father's shape, radius needed to find the magic number called "pi."

In mathematics, the value of pie is more than 3 (3.14 to be exact) and it is represented by the Greek symbol " $\pi$ ."

So, this explains the answer.

4 0

3 years ago