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
Tomtit [17]
3 years ago
8

Use the rules of significant figures to simplify the following expression:

Mathematics
1 answer:
pychu [463]3 years ago
5 0
25.5 × 10.09 = 257

Sig Figs
3

Decimals
0

Scientific Notation
2.57 × 102
You might be interested in
A rectangular plot of land is to be enclosed by a fence. One side is along a river, and does not need to be enclosed. If the tot
Bad White [126]

Answer:

Width 150 meters.

Length = 350 meters.

Step-by-step explanation:

Let us assume the  width of  the fence = k meters

So, both sides = k + k = 2k meters

Also, the TOTAL fencing length = 600 m

So, the one side length of the fence = (600 - 2 k) meters

AREA = LENGTH x WIDTH

⇒ A(k)  = (600 - 2k) (k)

or, A =  -2k² + 600 k

The above equation is of the form: ax² +bx +  C

Here: a  = - 2 , b = 600 and C = 0

As a< 0, the parabola opens DOWNWARDS.

Here, x value is given as:  x = \frac{-b}{2a}

Solving for the value of k similarly, we get:

k = \frac{-b}{2a}  = \frac{600}{2(-2)}  = 150

Thus the desired width = k = 150 meters

So, the desired dimensions of the plot  is width 150 meters.

And length = 650 - 2k = 650 - 300 = 350 meters.

5 0
3 years ago
(255)/(6)*(672)/(9)+(37)/(9) <br> How do you work this out step by step??
koban [17]
Step 1. Type it into a Google search box or calculator. (You need to use a calculator anyway.) The result is 3177 4/9.

If you're doing this according to the Order of Operations, you do the multiplication and division left to right. This means the first calculation you do is
  255/6 = 42.5
Next, you multiply by 672
  42.5*672 = 28560
Then divide by 9
  28560/9 = 3173 3/9

You continue by doing the division
  37/9 = 4 1/9

And finish by adding the two results
  3173 3/9 + 4 1/9 = 3174 4/9

_____
If you're doing this by hand, you can recognize the first term as the product of two fractions, so is the product of numerators divided by the product of denominators.
  (255*672)/(6*9)
Using your knowledge of divisibility rules, you can do the division 672/6 to simplify this to
  (255*112)/9
Now, the first term and the second term have the same denominator, so you can add the numerators before you do the division.
  (255*112 + 37)/9 = (28560 + 37)/9 = 28597/9
You end up having to do only two simple divisions, rather than 3 of them.
  28597/9 = 3177 4/9

7 0
3 years ago
What is the slope of (10,150) and (1,-75)
valentina_108 [34]

Answer:

25

Step-by-step explanation:

6 0
3 years ago
A company has $54,000 in a bank account that pays an interest of 2% per year. How much money can I withdraw at the end of one ye
RSB [31]

Answer:

$55,080

Step-by-step explanation:

Hope this helps.

3 0
3 years ago
Read 2 more answers
Please help and quick the questiion is attached!!! 25 points.
adelina 88 [10]

Answer:

last one

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • During a recent rainstorm, 8 centimeters of rain fell in Dubaku's hometown, and 2.36 centimeters of rain fell in Elliot's hometo
    12·1 answer
  • 12^10·75^15/15^25·80^5
    13·1 answer
  • How to find if a triangle is acute or obtuse with side lengths?
    5·1 answer
  • How do you write 1.034 in two other forms?
    12·2 answers
  • Th<br> Write an explicit formula for An, the nth<br> term of the sequence 15, 23, 31, ....
    15·1 answer
  • Blue toy cars cost $1 each and red toy cars cost $1.50 each. Mark spent $10
    8·1 answer
  • A school held a kiddie carnival to raise PTA. Admission for adults was $8, and admission for children was $5. In the end, 87 peo
    14·1 answer
  • Find (-4) for f(x) = 9(3)^x<br> A. -108<br> B. 1/3<br> C. -729<br> D. 1/9
    7·1 answer
  • !!!!!!!!!!!!!!!!!!!!! HELP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    9·1 answer
  • Kerri drives $150$ miles to visit her grandmother. She starts off driving $60$ miles per hour, but then encounters road construc
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!