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
yaroslaw [1]
3 years ago
14

Reasonable or unreasonable 9/10 - 2/5 = 1 3/10

Mathematics
1 answer:
amid [387]3 years ago
4 0
It's wrong so unreasonable because 2/5 is 4/10 so 9/10 - 4/10 is 5/10 which is a 1/2
You might be interested in
BRAINLIEST AWARD NO.2
zzz [600]

Answer:

A whole number first term to render as fifth term a value larger than 10000, should be at least 121

Step-by-step explanation:

The formula is given as recursive since it involves the previous number of the sequence, and defined as:

a_n=a_{n-1}*3+6

we also know that the first term is 4

Then in this case, the first five terms are:

a_1=4\\a_2=4*3+6=18\\a_3=18*3+6=60\\a_4=60*3+6=186\\a_5=186*3+6=564\\

So if we want to find the first term in the case that the fifth one is greater than 10,000 using this recursive formula, now we have to start backwards, and say that the fifth term is "> 10000" and what the fourth one is.

Notice that if you have this definition for the nth term, we can obtain from it, what the previous term is to find the general rule:

a_n=a_{n-1}*3+6\\a_n-6=a_{n-1}*3\\\frac{a_n-6}{3} = a_{n-1}\\a_{n-1}=\frac{a_n}{3} -2

So the rule is to subtract 6 from he term, and divide the subtraction by 3. Then working backwards:

a_5>10000\\\frac{a_5}{3} -2>\frac{10000}{3} -2\\a_4>=\frac{10000}{3} -2\\\frac{a_4}{3} -2>\frac{\frac{10000}{3}-2}{3}-2 =\frac{10000}{9}-\frac{8}{3} \\a_3>\frac{10000}{9}-\frac{8}{3} \\\frac{a_3}{3} -2>\frac{\frac{10000}{9}-\frac{8}{3} }{3} -2=\frac{10000}{27} -\frac{8}{9} -2=\frac{10000}{27} -\frac{26}{9}\\a_2=\frac{10000}{27} -\frac{26}{9}\\\frac{a_2}{3} -2>\frac{\frac{10000}{27} -\frac{26}{9}}{3} -2=\frac{10000}{81} -\frac{80}{27} \\a_1>\frac{10000}{81} -\frac{80}{27}\approx 120.49

therefore, the starting first term should be at least about 121 to give a fifth term larger than 10,000

8 0
2 years ago
Make a equation for the scatter plot line
aalyn [17]

Answer:

y = -7.2x + 540

Step-by-step explanation:

to find the slope I used the x-and-y intercepts: (0, 540) and (75, 0)

slope = 540/-75 or -7.2

5 0
2 years ago
115 divided by 356................
Airida [17]

Answer:

0.32        

:)

brainliest greatly appretiated

8 0
2 years ago
Read 2 more answers
Which expression is equivalent to x^6-9
svlad2 [7]

Answer: (x^3)^2 - 3^2

Step-by-step explanation:

6 0
3 years ago
Amira pulls a 3 pound wagon 4 feet. How much work has she done?
Alex787 [66]

Answer:

12 ft-lbs is your answer

8 0
3 years ago
Read 2 more answers
Other questions:
  • Four hundred two million seventy-three thousand one hundred eighty in standard form
    10·2 answers
  • Mary's four friends have 1/3 of a pound of jelly bellies. They want to put them all together, how much candy do they have ?
    6·1 answer
  • Dennis, Emily, and Fernando want to find the zeros of the polynomial p(x)=x3+6x2+9x. Each student worked independently and prese
    9·1 answer
  • Normal Distribution Problem. Porphyrin is a pigment in blood protoplasm and other body fluids that is significant in body energy
    10·2 answers
  • 1/9 multiplied by -3/7
    11·1 answer
  • 1 15/100 + 1/50 +1.175=
    10·1 answer
  • Pt=3x+8and TQ =5x-6 PT=?
    7·1 answer
  • 26:<br> = α : 8<br> 18:x= x:8
    8·1 answer
  • 10 * 2020 * 30httkjjj​
    13·1 answer
  • Identify the expression that has two terms.<br> 6 x + 4<br> x/4<br> 2 x<br> 5
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!