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
lakkis [162]
3 years ago
10

If a1=4 and an =2an-1 – 1 then find the value of a4.

Mathematics
1 answer:
musickatia [10]3 years ago
7 0
1 = 4

a2 = -2(a1) - 1
a2 = -2(4) - 1
a2 = -9

a3 = -2(a2) - 1
a3 = -2(9) - 1
a3 = -19

Can you do a4 and a5 and answer?
You might be interested in
Lois wants to send a box of oranges to a friend by mail. the box of oranges cannot exceed a mass of 10 kg. if each orange has a
-Dominant- [34]
No. of Oranges = Total Mass/Mass of one orange
IF only the mass of oranges is considered(not the box)

So, No. of oranges = 10*1000g/200g
                                  =  50
So answer is 50 oranges.
3 0
3 years ago
Unit 1 geometry basics quiz 1-3 angle measures and relationships
ASHA 777 [7]

Answer/Step-by-step explanation:

1. Side CD and side DG meet at endpoint D to form <4. Therefore, the sides of <4 are:

Side CD and side DG.

2. Vertex of <2 is the endpoint at which two sides meet to form <2.

Vertex of <2 is D.

3. Another name for <3 is <EDG

4. <5 is less than 90°. Therefore, <5 can be classified as an acute angle.

5. <CDE is less than 180° but greater than 90°. Therefore, <CDE is classified as an obtuse angle.

6. m<5 = 42°

m<1 = 117°

m<CDF = ?

m<5 + m<1 = m<CDF (angle addition postulate)

42° + 117° = m<CDF (Substitution)

159° = m<CDF

m<CDF = 159°

7. m<3 = 73°

m<FDE = ?

m<FDG = right angle = 90°

m<3 + m<FDE = m<FDG (Angle addition postulate)

73° + m<FDE = 90° (Substitution)

73° + m<FDE - 73° = 90° - 73°

m<FDE = 17°

3 0
3 years ago
33/(-3)+6=<br> (-20)/5 - 2=<br><br> what is the greater value?
UNO [17]
The way to do this mathematically is by incorporating the Order of Operations.(Please Excuse My Dear Aunt Sally) This stands for (do first:) Parenthesis, then exponents, after that multiplication, now division, then addition, and finally subtraction. The side on the right then equals -5 while the side on the right equals -6. The greater value is the left side. If you have any other questions, just ask me!
5 0
3 years ago
If you are driving a train and your going over 180 mph, and you pass 20 houses, 10 stores, 3 gas stations, and 1 hospital per ev
zlopas [31]

If I am driving the train , the colour of the eye will be my eye colour.

<h3>What are Logical Questions ?</h3>

The questions that do not need critical reasoning while only need logical thinking to find the answer.

It is given that the "If you are driving a train and your going over 180 mph, and you pass 20 houses, 10 stores, 3 gas stations, and 1 hospital per every ten minutes"

If I am driving the train , the colour of the eye will be my eye colour.

To know more about Logical Questions

brainly.com/question/12087756

#SPJ1

8 0
2 years ago
How do I use the intermediate value theorem to prove every polynomial of odd degree has at least one real root?
Anon25 [30]

Answer:

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • Kevin’s bill at a restaurant was $26.51. He left a 15% tip. About how much tip did Kevin leave?
    14·1 answer
  • A class has 27 students. Fifteen are boys and the rest are girls . What is the ratio of girls to total students?
    12·1 answer
  • Triangle question find the value
    13·1 answer
  • 6/15 as a reduced fraction and show how you reduced and got your answer.<br><br> I need help
    9·2 answers
  • What qualifies two figures as similar figures?
    14·1 answer
  • In the formula l=P•r•t, what does the P stand for?
    11·1 answer
  • A certain company's main source of income is selling cloth bracelets. The company's annual profit (in thousands of dollars) as a
    15·2 answers
  • Give the value of x. Explain how you got your answer OR which theorem you used.
    9·1 answer
  • The sales tax on a sofa that cost 575$ was 43.13 What was the percent sales tax? PLS HELP ASAP NEED TO SHOW WORK!! AND STEP BY S
    12·2 answers
  • What is the radius of a circle with a diameter of 6 meters
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!