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
aksik [14]
3 years ago
14

How to find the designated sum in arithmetic series

Mathematics
1 answer:
Natali5045456 [20]3 years ago
6 0

Answer:

You need more data

Step-by-step explanation:

You might be interested in
Solve 3(x – 6) + 3 = –9.
Alik [6]

Answer:

d) x = 2

Step-by-step explanation:

3(x - 6) + 3 = -9

<em>open the parenthesis</em>

3x - 18 + 3 = -9

3x - 15 = -9

<em>add 15 to both sides of the equation</em>

3x - 15 + 15 = - 9 + 15

3x = -9 + 15

3x = 6

<em>divide both sides by 3</em>

3x/3 = 6/3

x = 6/3

x = 2

5 0
3 years ago
A teacher polled only the 8th grade students in English classrooms on what their favorite color is. She found that the favorite
amid [387]

Answer:

This is a biased sample.

Step-by-step explanation:

This is because she gave a random sample, but the she had the convenience of the students being with her when she surveyed. So it'e not actually random. She could also worded the survey or gave a biased response.

4 0
2 years ago
PLease help <br> The segments shown below could form a triangle True or false ?
grigory [225]

Answer:

true

Step-by-step explanation:

for a right triangle no

3 0
3 years ago
In a horse race with 5 horses, you make a bet by predicting the ranking of all 5 horses. Suppose you place your bet at random. W
lapo4ka [179]

Answer:

P( top two horses are predicted incorrectly in incorrect order)

= \frac{1}{2}

Step-by-step explanation:

In the horse race the outcome can be predicted in 5! = 120 ways.

Now suppose the top two horses were predicted incorrectly in incorrect order. Now, the  top horse can be predicted incorrectly in 4 ways.

Suppose the top horse was predicted to be in k-th position where k = 2, 3 ,4,5

so the second horse can be predicted to be in place from 1 to (k - 1)

So, the top two horses can be predicted  incorrectly in incorrect order

in \sum_{k =2}^{5}(k - 1) = 10 ways  

and for each prediction of the two the remaining horses may be predicted in 3! = 6 ways.

Hence ,

P( top two horses are predicted incorrectly in incorrect order)

= \frac{6 \times 10}{120}

=\frac{1}{2}

 

8 0
2 years ago
A circle has a diameter of 14cm. What's the circumfrence?
vesna_86 [32]
I believe that when finding the radius of a circle you half the diameter, but when finding the circumference of a circle you need to multiply the diameter (14cm) by pi.

So 14xpi= 43.98229715

But it can be simplified/ rounded to 44cm.

Of course I might be incorrect so do please correct me if I am wrong.
7 0
3 years ago
Other questions:
  • The difference of the squares of two positive consecutive even integers is 84. Find the integers. Use the fact​ that, if x repre
    7·1 answer
  • Given a≠±b and a^2−b^2 / a+b =12, find a−b.<br> ;pls help;;
    13·2 answers
  • The sum of three consecutive terms x, y and z of an arithmetic progression is 45. If y=1/2(x+z), find the value of y.​
    5·1 answer
  • Convert 0.000007914 to scientific notation.
    11·1 answer
  • Problem 2.2 (20 points)Black and yellow pigment cells (melanophores and xanthophores) are responsible for patterns onthe skin of
    13·1 answer
  • What is 2.685 rounded to the nearest hundredths place
    8·2 answers
  • What is 3.2 ×10^3 in standard form​
    11·2 answers
  • What is the slope of the line that passes through the points<br> (1, -3) and (4, 2)?
    11·1 answer
  • 3. In 2008, the population of the United States
    9·1 answer
  • How is the key event in this paragraph illustrated?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!