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
melomori [17]
2 years ago
5

2

Mathematics
1 answer:
svet-max [94.6K]2 years ago
5 0

Answer:

 B.  4200

Step-by-step explanation:

A suitable calculator can add the terms for you. (See attached)

__

The first term is 69, and the common difference is 75-69 = 6. The general term is ...

  an = a1 +d(n -1)

  an = 69 +6(n -1)

Then the 28th term is ...

  a28 = 69 +6(27) = 231

The average term is (a28 +a1)/2 = (231 +69)/2 = 150.

The sum is the number of terms multiplied by the average term:

  sum = 28×150= 4200

You might be interested in
The data in the table represent the training times (in seconds) for Adam. Adam 103 105 104 106 100 98 92 91 97 101 Points Concep
Julli [10]

Answer:

A. Miguel has the greatest spread.

The range of the two persons can be determined by:

Adam's range = 106 -91 = 15

Miguel's range = 105 -86 = 19

B. Considering the middle 50% of the training time, the person with the least spread is Adam.

Adam - 103 105 104 106 100

Miguel - 88 86 89 93 105

Adam's 50% range = 106 - 100 = 6

Miguel's 50% range = 105 - 86 = 19

Adam has the least spread

C. Miguel is inconsistent with the time set for training compared to that of Adam.

The answers to parts 2a and 2b show that there is a wide variation in the time that Miguel spend during training, but a minimum variation in the time spent by Adam during training.

3 0
3 years ago
This is 15 points plz help ( no links ) EXPLAIN YOUR ANSWER plz
goldfiish [28.3K]
A.
EXPLANATION:
The mode is the peak of the data, in this data set, 5/8
The median is the center of data, in the data set, 1/2
5/8>1/2
Mode>Median
6 0
3 years ago
Find the product : 2p (4p² + 5p + 7)
Ber [7]
<h3>Answer: 8p^3 + 10p^2 + 14p</h3>

Explanation:

The outer term 2p is distributed among the three terms inside the parenthesis. We will multiply 2p by each term inside

2p times 4p^2 = 2*4*p*p^2 = 8p^3

2p times 5p = 2*5*p*p = 10p^2

2p times 7 = 2*7p = 14p

The results 8p^3, 10p^2 and 14p are added up to get the final answer shown above. We do not have any like terms to combine, so we leave it as is.

6 0
3 years ago
Which of the following statements is false?
Nutka1998 [239]
A.) All parallelograms are trapezoids
4 0
3 years ago
Maria studied the traffic trends in India. She found that the number of cars on the road increases by 10% each year. If there we
lord [1]

Answer:

b. 8,800,000.

Step-by-step explanation:

In maria study the number of cars on the road increases by 10% each year.

Total number of cars in the first year =80 million cars.

We will add 10% of 80 million to 80 milion to enable us get the number of cars for the second year.

For year 2 we have;

10% of 80,000,000+80,000,000

\frac{10}{100}*80,000,000+80,000,000

8,000,000 + 80,000,000

88,000,000

number of cars in year 2 = 88 million

We will add 10% of 88 million to 88 milion to enable us get the number of cars for the third year.

\frac{10}{100}*88,000,000+88,000,000

8,800,000+88,000,000

96,800,000

the number of cars on the road in year 3 compared to year 2 will just be the increase which is in BOLD. That is 8,800,000

<em>or simply subtract the number of cars in year 2 from that in year 3;</em>

96,800,000-88,000,000 = 8,800,000

8 0
3 years ago
Read 2 more answers
Other questions:
  • If arc sq = 92° and arc qr = 86°, what is the measure of ∠rps?
    11·2 answers
  • Find the amount of time to the nearest day it would take a deposit of $1300 to grow to 1 million at 17% compounded continuously.
    7·1 answer
  • 95% of students at school weigh between 62 kg and 90 kg. Assuming this data is normally distributed, what are the mean and stand
    6·2 answers
  • Q1, The small bar of chocolate weighs 50g and 32p.
    6·1 answer
  • Prove that (secx-tanx) = 1-sinx/1+sinx
    11·1 answer
  • I report if u guess. A 98% confidence interval for a proportion is found to be (0.32, 0.38). What is the sample proportion?
    12·1 answer
  • Hailey had 1/5 of a chocolate bar. She decided to
    14·1 answer
  • Find cos(a) in the triangle.
    10·1 answer
  • S = ut +1at^2, solve for a​
    12·1 answer
  • What is the area of the regular hexagon
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!