1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
seraphim [82]
4 years ago
11

What numbers are irrational. Square root of 45, square root of 64, square root of 21 , and square root of 21

Mathematics
2 answers:
tekilochka [14]4 years ago
6 0
The square of 45 and square root of 21 are irrational. The square root of 64 is rational
liberstina [14]4 years ago
5 0

Answer: is A, C, D

A. √45= 6.7082039324993690892275210061938

B. √64= 8

C. √21= 4.582575694955840006588047193728

D. √21= 4.582575694955840006588047193728

Step-by-step explanation:

An Irrational Number is a real number that cannot be written as a simple fraction.

You might be interested in
Find the value of x.<br> B<br> 10-X<br> 3<br> D<br> х<br> 2.<br> A<br> С<br> x = [?]
Nuetrik [128]

Answer:

3/(10-x) = 5/(10-x+x)

3/(10-x) = 1/2

6 = 10-x

x = 4

Hope this helps!

7 0
3 years ago
What is the operation used in increased by
USPshnik [31]
Adding . your increasing , so you add
6 0
3 years ago
Read 2 more answers
Find the length of dm in the given fig.​
lesya692 [45]

Answer:

DM=12

Step-by-step explanation:

(Let the point where the altitude from D intersects AB be called as point E.) First, let's find the area of parallelogram ABCD. The area of a parallelogram is simply b*h=bh, where b is the parallelogram's base and h is the parallelogram's height. If we let AB and DE be the base and height respectively, since we are already given their lengths, we know that the area of parallelogram ABCD will be AB*DE=15*8=120.

Now, how does this information matter, you might ask? Well, we can take either AB <em>or </em>CB to be the base and either DE or DM to be the height. In this case, let's take the latter two options, as we are looking to find the length of DM.

Therefore, we know that the area of parallelogram ABCD can also be found by calculating CB*DM. Since we know the values of the area and CB, we can write the following equation to solve for DM:

Area = CB*DM

120=10*DM (Substitute Area=120 and CB=10 into the equation)

\frac{120}{10}=\frac{10*DM}{10} (Divide both sides of the equation by 10 to get rid of DM's coefficient)

12=DM (Simplify)

DM=12 (Symmetric Property of Equality)

Hope this helps!

4 0
3 years ago
I need help on this question and answering it
Contact [7]

Answer:

75 feet

Step-by-step explanation:

the shadow to the object would be a 4:5 ratio

since the shadow of the flagpole is 60 ft,

4x=60 so x would =15

then you multiply 15 by 5 and end up with 75

6 0
3 years ago
Read 2 more answers
What are the solutions of the equation?
Olegator [25]
The correct answer would be 41
7 0
3 years ago
Other questions:
  • What is 9b minus 3 over 9 equals 5b plus 5 over 3
    13·1 answer
  • A rock has a mass of 210g and a volume of a 150 cubic centimeter what is the density of The Rock
    7·1 answer
  • Four less than the quotient of a number x and 5
    10·1 answer
  • The equation of a line is y=-3x - 2. What are the slope and the y-intercept of the line?
    15·1 answer
  • If "a" varies directly as "b" and inversely as "c". If a=16 when b=12 and c=6, find "a" when b=28 and c=4. *
    10·1 answer
  • What are the coordinates of the yellow square ​
    7·1 answer
  • Help please, Please Help.
    6·2 answers
  • Find the mean, median mode(s), range, standard deviation, and variance of the data: 21, 15, 16, 25, 13, 18 5, 3, 2, 6, 5, 2, 5 E
    14·1 answer
  • Help for 15 points . ill up it
    15·1 answer
  • Describe how coordinate points are affected when reflecting across the X-axis.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!