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
zhenek [66]
3 years ago
11

Find a ⋅ b. a = 9i + 5j, b = 4i + 3j

Mathematics
1 answer:
IgorLugansk [536]3 years ago
6 0
-36 + 47ji + 15j^2


Best luck with your studying
You might be interested in
What would the amount of interest be earned if there is a deposit of $10,000 at 9.5% for 90 days
Bingel [31]
I am working on this in school, this is how we are being taught to do this type of problem:

First, convert the 9.5% to 0.095. Then multiply:

10,000 x 0.095 x 90 = 85,500

So, the answer should be: $85,500 interest.
3 0
3 years ago
A sequence is defined recursively by the following rules: f(1)=3f(n+1)=2⋅f(n)−1 Which of the following statements is true about
Radda [10]

Answer:

f(2)=5

f(5)=33

Step-by-step explanation:

The given formula, that recursively defines the sequence is

f(1) = 3 \\ f(n + 1) = 2f(n) - 1

When n=1, we obtain;

f(1+ 1) = 2f(1) - 1 \\ f(2) = 2 \times 3 - 1 \\ f(2) = 6 - 1 \\ f(2) = 5

When n=2, we get:

f(2+ 1) = 2f(2) - 1 \\ f(3) = 2 \times 5 - 1 \\ f(3) = 10 - 1 \\ f(3) = 9

When n=3,

f(3 + 1) = 2f(3) - 1 \\ f(4) = 2f(3) - 1 \\ f(4) = 2 \times 9 - 1 \\ f(4) = 18 - 1 \\ f(4) = 17

When n=4

f(4 + 1) = 2 f(4) - 1 \\ f(5) = 2 \times 17 - 1 \\ f(5) = 34 - 1 \\ f(5) = 33

When n=5,

f(6) = 65

4 0
3 years ago
What is the factor of 9x2-16?
Grace [21]

Answers:

9×2-16

18-6

= 2

7 0
3 years ago
How to pass my regions
Anettt [7]

by studying because that's the hard truth

4 0
3 years ago
Read 2 more answers
Fill in the blank with the correct number to balance the equation: 4Cr + 3O2 → Cr2O3
ivanzaharov [21]

Answer:

2

Step-by-step explanation:

4 0
2 years ago
Other questions:
  • Solve and show steps. 3 divided by 4.236
    6·1 answer
  • Which of the following numbers is closer to the area of a circle with a radius of 2.1
    6·2 answers
  • Round 389,935 to the nearest hundred thousand ​
    11·2 answers
  • Write an expression for this phrase.<br> 2. A third of a number n
    15·1 answer
  • What is the answer to both of these questions? Please help
    6·2 answers
  • Please answer this correctly without making mistakes
    5·1 answer
  • Determine whether the given description corresponds to an observational study or experiment
    6·1 answer
  • A line that passes through the points (-1,-7) and (3,7)
    8·2 answers
  • Can someone help plz :')
    8·1 answer
  • The cost of a new television is $948. If the value of the television decreases by 4.5% every year, which function
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!