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salantis [7]
2 years ago
15

Is the real number √1.21 rational or irrational? A) Rational B) Irrational

Mathematics
2 answers:
AURORKA [14]2 years ago
7 0
The answer is rational. It is 1.1

svet-max [94.6K]2 years ago
6 0

Answer:

A) Rational.

Step-by-step explanation:

We have been given a real number \sqrt{1.21}. We are asked to determine whether our given number is rational or irrational.

We know that an irrational number is a number that cannot be written as fraction.

Upon evaluating our given number, we will get:

\sqrt{1.21}=1.1

We can write 1.1 as fraction as shown below:

1.1=\frac{11}{10}

Since we can write our given number a fraction, therefore, our given number is a rational number and option A is the correct choice.

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In ΔEFG, the measure of ∠G=90°, GF = 48, EG = 55, and FE = 73. What ratio represents the cosecant of ∠F?
Mrac [35]

Answer:

Cosec <F = 73/55

Step-by-step explanation:

In ΔEFG, the measure of ∠G=90°, GF = 48, EG = 55, and FE = 73. What ratio represents the cosecant of ∠F?

First you must know that;

Cosecant <F = 1/sin<F

Given

∠G=90°, GF = 48, EG = 55, and FE = 73.

ED ,= hyp = 73

EG = opp = 55*side facing <F

Using DOH CAH TOA

Sin theta = opp/hyp

Sin <F= 55/73

Reciprocate both sides

1/sinF = 73/55

Cosec <F = 73/55

3 0
2 years ago
Find the domain of the funtion 4/x-7
dedylja [7]
Domain means which values the function can have which make it true or Possible to solve

So all you got to do is set the denominator = to 0 and solve for x
You will get x=7

4/(7-7) is not possible

So x cannot equal to 7 because you cant divide a number by 0!
5 0
2 years ago
Which scatterplot(s) show a positive correlation A. Plot B B. Plot D. C. Plots A and C D. Plots A, C and D
adoni [48]
The anwser is a&c they go forward and up
3 0
2 years ago
The regular octagon in the ceiling of this cathedral has a radius of 10.5 feet and a perimeter of 64 feet.
SVEN [57.7K]

Answer:

first blank: 9.7

second blank: 310.4

4 0
2 years ago
Read 2 more answers
The 200th term of the arithmetic progression 10 97,94,91,.............is​
azamat

Answer:

-500

Step-by-step explanation:

Given sequence;

    97, 94, 91 ......

Unknown;

The 200th term of the sequence;

Solution:

Since we were given an arithmetic progression, we need to first find the common difference;

 Common difference  = second term - first term

                                     = 94 - 97  

                                     = -3

To find the 200th term, we use the expression below;

     Sn  = a + (n-1)d

   a is the first term

    n is the nth term

   d is the common difference

 S₂₀₀ = 97 + (200 - 1 ) x -3 = -500

5 0
2 years ago
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