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
PilotLPTM [1.2K]
3 years ago
8

What is the 3rd term of the sequence? a1 = 40 and an = 0.5(an – 1) a3 =

Mathematics
1 answer:
777dan777 [17]3 years ago
8 0
\bf \begin{array}{llll}
term&value\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
a_1&40\\\\
a_2&0.5(a_{n-1})\\
&0.5(a_{2-1})\\
&0.5(a_1)\\
&0.5(40)\\
&20\\\\
a_3&0.5(a_{3-1})\\
&0.5(a_2)\\
&0.5(20)
\end{array}
You might be interested in
8. Consider the diagram below. Solve for k.
user100 [1]
The answer is k=73
hope this helps
7 0
2 years ago
Read 2 more answers
Find the magnitude of v. v = -3i+ 40 + 7k v =
kherson [118]

Answer:

The magnitude of the given vector is 40.72 units.

Step-by-step explanation:

The given vector is v=-3\widehat{i}+40\widehat{j}+7\widehat{k}

We know that for any vector 'r' \overrightarrow{r}=x\widehat{i}+y\widehat{j}+z\widehat{k} the magnitude is given by

|r|=\sqrt{x^{2}+y^{2}+z^{2}}

Comparing with the given vector we have

x = -3

y = 40

z = 7

Thus the magnitude equals  

|v|=\sqrt{(-3)^{2}+40^{2}+7^{2}}

|v|=40.72

5 0
3 years ago
Drag the simplified value into the box to match each expression.
Maru [420]

Answer:

The answers are as follows: 12 106 42

Step-by-step explanation:

Given: $ 18 - 4^2 + 5 \times 2 $  

Using BODMAS rule (Bracket, Of, Division, Multiplication, Addition and Subtraction) we would calculate $ 18 - 4^2 $ separately and $ 5 \times 2 $ separately and add them. So we have $ 18 - 16 + 10 = 2 + 10 =12 $.

Now for the second question: $ 9^2 + 4 \times 7 - 3 $. we would get $ 81 + 28 - 3 = 106 $

Next, $ 5^2 - 4 + 7 \times 3 $. This could be written as:  $ 25 - 4 + 21 = 42 $. Hence the answers.

3 0
3 years ago
Please answer the question above.
kenny6666 [7]

Answer:

5.3!

Step-by-step explanation:

( in case you need work ) the angles are congruent so you set them equal to each other!

6x+12=9x-4

you then get 16=3x then divided its 5.3!

8 0
3 years ago
Which equation shows the commutative property of addition?
kipiarov [429]

Answer:

C

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • For a-d, choose Yes or No to tell whether each of the following sets of side lengths will make a shelf that fits in a 90 degree
    9·1 answer
  • Need help with this math problem please
    6·1 answer
  • Prescott sporting goods company has 45,000 shares of stock outstanding. what total dividend declaration would be necessary for t
    13·2 answers
  • You buy a house that costs $345,000. You put down a downpayment of 20%. You borrow the rest from the bank, who charges an annual
    14·1 answer
  • PLS HALP-
    14·1 answer
  • There are 8 fish tanks in the pet shop. They just
    15·2 answers
  • The graph of which equation is parallel to the line in the graph above?
    6·1 answer
  • Consider the pattern:2; 5; 8; 11; ......... Write down the next two terms
    15·2 answers
  • (X+9)(x-2)-9x-6 is equivalent to?
    13·1 answer
  • The double number line shows that Toni can type 180 words in 2 minutes.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!