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
14

Find the 30th term of the following sequence. 2,8,14,20

Mathematics
1 answer:
lyudmila [28]4 years ago
4 0

Answer:

\large\boxed{a_{30}=176}

Step-by-step explanation:

a_1=2\\a_2=2+6=8\\a_3=8+6=14\\a_4=14+6=20\\\vdots\\\text{It's the arithmetic sequence with common difference d = 6}.\\\\\text{The formula of a n-th term:}\\\\a_n=a_1+(n-1)d\\\\\text{Substitute:}\\\\a_n=2+(n-1)(6)=2+(n)(6)+(-1)(6)=2+6n-6=6n-4\\\\\text{Calculate 30-th term. Substitute}\ n=30:\\\\a_{30}=6(30)-4=180-4=176

You might be interested in
A Company increased the number of its employees from 340 to 425. Find the percent increase.
Inessa [10]
25%

Because You must do the original number by the new.

so, 425-340= 85

but ur not done now,

divide that 85 by the original number then times by 100!

85/340= .25*100= 25%

and ur done hope this helped
8 0
3 years ago
What is 127/100 as a percent
jenyasd209 [6]
1.27, think money.
100 pennies is $1
27 cents left
$1.27
3 0
4 years ago
Read 2 more answers
5. When looking at a map, a student realizes that Birmingham is nearly due west of Atlanta, and Nashville is nearly due north of
leonid [27]

Answer: 250 mi

Step-by-step explanation:

Here we can think in a triangle rectangle:

The distance from Birmingham to Atlanta is roughly 150 mi, and this is one of the cathetus.

And the distance from Birmingham to Nashville is roughly 200 mi, this is the other cathetus of the triangle.

Now, the distance from Atlanta to Nashville will be the hypotenuse of this triangle rectangle.

Now we can apply the Pythagorean's theorem:

A^2 + B^2 = H^2

Where A and B are the cathetus, and H is the hypotenuse:

Then:

H = √(A^2 + B^2)

H = √(150^2 + 200^2) mi = √(62,500) mi = 250 mi

Then the estimated distance from Atlanta to Nashville is 250 mi

6 0
4 years ago
Biologists were studying the proportions of cats that had spotted markings on their fur in two populations of cats, C and F. An
alexandr1967 [171]

Answer:

If the proportions of all cats with spotted markings is the same for both populations, the probability of observing a sample difference of at least 0.62 is 0.01.

Step-by-step explanation:

p-value is the probability of observing a result which is at least as extreme as we calculated in our actual workings, assuming the Null hypothesis to be true.

The calculate p-value is 0.01. In the question statement we are given that the alternate hypothesis is:

"Population Proportions are not equal"

Since, Null and Alternate Hypothesis are negations of each other, the Null Hypothesis would be:

"Population Proportions are equal"

We assume the null hypothesis to be true, perform the tests on the sample and obtain a result.

The results we obtained is:

The sample difference is 0.62

Fitting all this data, in the definition of p value tell us that:

The probability of obtaining a sample difference of atleast 0.62 is 0.01, if the population proportions are same.

This matches with the option B. Therefore, the correct answer is:

If the proportions of all cats with spotted markings is the same for both populations, the probability of observing a sample difference of at least 0.62 is 0.01.

3 0
3 years ago
During a relay, Natasha swam 0.8 km and Kevin swam 500 m. How many meters did they swim in total?
Savatey [412]
I wanna say its 16
(not 100% sure)
6 0
4 years ago
Read 2 more answers
Other questions:
  • How shall i find the square root of 169 without using calculator?? please describe briefly..
    12·1 answer
  • Given , which of the following describes the boundary line and shading for the second inequality in the system?
    11·1 answer
  • Use the rules of significant figures to simplify the following expression: 22.674 • 15.05
    11·1 answer
  • Which rational number equals 0 point 5 with bar over 5? (1 point)
    8·2 answers
  • Change subtraction to addition by adding the
    10·2 answers
  • 50 POINTS!!!!!!1
    15·2 answers
  • .A student earned 75 out of 100 in Col110 quiz for the first time, then she earned 85 out of 100 in the second time for the same
    8·1 answer
  • The Ramos family shared 1/3 of gallons ice cream. There are four people in the family. What part of gallon did each person eat?
    9·1 answer
  • Can someone help me? Right answer gets brainliest!!
    6·2 answers
  • Find the value of x<br><br> thank you so much
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!