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
zalisa [80]
3 years ago
6

What rule can be used to find the next term of the arithmetic sequence? 39, 60, 81, 102, 123, . .

Mathematics
2 answers:
Alenkasestr [34]3 years ago
8 0

and the next one is 144

Shalnov [3]3 years ago
6 0
<span>an</span><span> = </span>a<span>n–1</span><span> + 21               the answer is c
                          </span>
You might be interested in
Find the value of x² - x+1 when x=√3 -1, in the form a+b√3 where a and b are integers​
lidiya [134]

Answer:

6-3\sqrt{3}

If you compare this to a+b\sqrt{3}, then a=6 and b=-3.

Step-by-step explanation:

We are given x=\sqrt{3}-1 and we are asked to find the value of x^2-x+1.

So we will need to find x^2.

x=\sqrt{3}-1

Square both sides:

x^2=(\sqrt{3}-1)^2

Expand using identity: (x-a)^2=x^2-2ax+a^2.

x^2=(\sqrt{3})^2-2(\sqrt{3})(1)+1^2

x^2=3-2\sqrt{3}+1

x^2=4-2\sqrt{3}

Let's go back to the full x^2-x+1.

x^2-x+1

(4-2\sqrt{3})-(\sqrt{3}-1)+1

4-2\sqrt{3}-\sqrt{3}+1+1

6-3\sqrt{3}

If you compare this to a+b\sqrt{3}, then a=6 and b=-3.

5 0
4 years ago
Which statement describes the symmetry of the data in the two box plots?
inysia [295]

Answer:

The data in country B are more symmetric than the data in country A.

Step-by-step explanation:

The following information is missing:

<em>The box plots show the average wind speeds, in miles per hour, for various cities in two different countries. Average Wind Speeds of Cities in Country A 2 box plots. The number line goes from 1 to 11. For the average wind speeds of cities in country A, the whiskers range from 1 to 9.5, and the box ranges from 3 to 7. A line divides the box at 4. For the average wind speeds of cities in country B, the whiskers range from 1.2 to 11, and the box ranges from 4 to 9. A line divides the box at 6. Average Wind Speeds of Cities in Country B</em>

Country A

  • minimum: 1
  • quartile 1: 3
  • median: 4
  • quartile 3: 7
  • maximum: 9.5

Country B

  • minimum: 1.2
  • quartile 1: 4
  • median: 6
  • quartile 3: 9
  • maximum: 11

We can see that the difference between quartile 1 and minimum, median and quartile 1, quartile 3 and median, and maximum and quartile 3 is more homogeneous in Country B than Country A, then Country B is more symmetric.

3 0
3 years ago
Read 2 more answers
Four students are determining the probability of flipping a coin and it landing head's up. Each flips a coin the number of times
Oxana [17]

Answer:

Collin

Step-by-step explanation:

He did the most attempts.

The probability of flipping a coin is 1/2

7 0
3 years ago
Read 3 more answers
Tim has 72 football cards and ben has 33 football cards. How many more football cards does tim have?
ankoles [38]

Answer:

the answer is 39


Step-by-step explanation:

you have to just easily subtract 72-33= 39


BRAINIEST PLZZZZ AND RATE ME

4 0
4 years ago
Read 2 more answers
The concentration C (in mg/dl), of a certain antibiotic in a patient's bloodstream is given by C(t)=50 t /(t^2 + 25) where t is
marishachu [46]
Given that the concentration has been modeled by the formula:
C(t)=50t/(t^2+25)
where:
t is time in hours.
The concentration after 5 hours will be given by:
t= 5 hours 
plugging the value in the equation we get:
C(5)=(50(5))/(5^2+25)
simplifying the above we get:
C(5)=250/(50)=5 mg/dl

Answer: 5 mg/dl
8 0
3 years ago
Other questions:
  • Solve the equation. 8x2 – 4 = 28
    13·2 answers
  • Please help me! I need the anwser asap​
    11·1 answer
  • Mr.Gonzales showed student part of a prime factorization of 90. One factor is missing . What number completes this prime factori
    9·1 answer
  • Which expressions are equivalent to -9x-21
    10·1 answer
  • Two and two fifths divided by one and a half
    10·1 answer
  • If I was 2 years old, and my sister was half my age. How old would my sister be?
    11·2 answers
  • A child ate 30 grams of cereal for breakfast and her brother ate 40% more than that. How many grams of cereal did the brother ea
    9·1 answer
  • Which system is equivalent to<br> y=9x2.<br> [x+y=5
    6·1 answer
  • NEED HELP ON THIS ASAP
    14·1 answer
  • The diagrams show a right angled triangle and a rectangle.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!