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
Vesnalui [34]
3 years ago
14

Find a close estimate for square root of 45. (without a calculator) Round your answer two decimal places

Mathematics
2 answers:
Inessa05 [86]3 years ago
8 0
Factor45 under the radical sign √45= √9×5= √3²×5
Simplify Powers 
3√5 =Answer approx = 6.70
dusya [7]3 years ago
6 0
You know that 7*7 is 49, and 6*6 is 36. Now you know it will be 6._. 6*7 is 42, so think of that as 6.5^2. You know that it will most likely be less than 6.8 since it is so close to being 7*7, which is 4 above your desired number. This leaves 6.6 to 6.8 as your estimate. Personally, I would go straight in the middle and choose 6.7. 

I hope this helps!
You might be interested in
A factory worker in Cambodia makes 320,000 Cambodian Riels per month. If 1 U.S. dollar equals 4000 Cambodian Riels, how much doe
skelet666 [1.2K]
The answer is 960 U.S dollars a year. 
7 0
3 years ago
7. The value of a computer has a decay factor of 0.85 per year. After 2 years, the computer is worth $1445. What was the origina
Readme [11.4K]

Answer:

$64222.22

Step-by-step explanation:

If we call the original value as x, we can write:

1445 = x * (0.15)²   (Note: We write 1 - 0.85 = 0.15 and not 0.85 because 0.85 is the decay factor)

1445 = 0.0225x

x ≈ 64222.22

7 0
3 years ago
Read 2 more answers
Which property is used in the problem below? 2(x+4)=2x+8 the associative property the commutative property the distributive prop
Serga [27]
The answer is C) The Distributive property.
2(x+4) got turned into 2x+8.

The distributive property does this:
2 times x plus 2 times 4.

2 times x = 2x
2 times 4 = 8.

So the answer is 2x+8.

C) Distributive property is right.
6 0
3 years ago
Read 2 more answers
What is the common ratio for this geometric sequence ? 16,8,4,2
ahrayia [7]

Hello from MrBillDoesMath!

Answer:   1/2

Discussion:

Note that:

16 /2 = 8  (the next term in the sequence)

8 /2 = 4  (the next term in the sequence)

4 /2 = 2  (the next term in the sequence)

We are repeatedly multiplying by 1/2



Thank you,

MrB


8 0
3 years ago
Read 2 more answers
What is the slope of a line containing the points (12, 6) and (3, -5)?
Gelneren [198K]

answer:

9/11

Step-by-step explanation:

(12-3)/(6-(-5))=9/11

7 0
3 years ago
Other questions:
  • mandy uses 7/10 of her beads to make a necklace .write an equivalent fraction with a denominator of 100
    12·2 answers
  • What ls 2x > -10 and 9x <18
    6·2 answers
  • I need all but if someone could just do the first, it would help a lot
    11·1 answer
  • Is 4,5, or 6 the solution of the equation c + 8 = 13?
    13·1 answer
  • Iverse of f (x)= 3x​
    12·1 answer
  • This composite figure has been divided into three rectangles.
    14·1 answer
  • A system of equations where both X and Y cancel and you are left with just a number is called
    14·1 answer
  • if billy has 7 friends and he loses 6 friends and then gains 4 friends and then loses five friends, how many friends does billy
    13·2 answers
  • Given<br>that a= 2,b= 0 and c=4 <br>What is the value of<br>of c-a<br>​
    13·2 answers
  • Solve 5(2x + 4) = 15. Round to the nearest thousandth.<br> PS: x+4 is the power for 2
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!