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
Readme [11.4K]
3 years ago
15

Find a • b if a=3i+8j and b=-0.5-4j

Mathematics
2 answers:
Marina CMI [18]3 years ago
6 0

Answer: -8j + 3i

Step-by-step explanation:

3i + 8j · (- 0.5) - 4j

3i-8j · 0.5 - 4j

3i-4j-4j

3i-8j

-8j+3i

Hope this helps

AnnZ [28]3 years ago
6 0

Answer:

−1.5i−12ij−4j−32j2

Step-by-step explanation:

You might be interested in
If Anna have 8000 and gave jim 300 and bought some items a shoes for 290 a suit for 400 and a phone for 2000
vovangra [49]

Answer: Assuming the unit is dollars, the answer would be $5,010.

Explanation:

Step 1: 8000-300 is 7700.

Step 2: 7700-290 is 7410

Step 3: 7410-400 is 7010

Step 4: 7010-2000 is 5010

So, the answer is Anna has $5,010 dollars left after giving Jim $300, buying shoes for $290, a suit for $400 and spending $2,000 dollars on a new phone.

6 0
4 years ago
HELP ASAP
skad [1K]

Answer: if 1 represents the game at the top and 7 the game at the bottom, the order is 1, 6, 5, 2, 3, 7, 4

Step-by-step explanation:

in a game where the expected value is zero, if your probability to win is p and the entry cost is C, then you should win an amount W =  C/p

then p = C/W

1) C = $5, W = $200

p = 5/200 = 0.025

2) C = $6, W = $300

p = 6/300 = 0.02

3) C = $9, W = $468

p = 9/468 = 0.019

4) C = $8, W = $440

´p = 8/440 = 0.0181

5) C = $7, W = $315

p = 7/315 = 0.0022

6) C = $4, W = $168

p= 4/168 = 0.024

7) C = $10, W = $540

p = 10/540 = 0.0185

Then the order, from least probability to greatest probability of winning is:

1, 6, 5, 2, 3, 7, 4

7 0
3 years ago
Take your time please​
AnnyKZ [126]

Step-by-step explanation:

two times one and

six times 9 is multipliy

so,

1) 2

hope it is helpful to you

7 0
3 years ago
Robert had $58.62 in his bank account. He got paid $142.76. He then bought a new jacket for $63.76. He also bought 2 new movies
Eddi Din [679]
Robert now has $135.64.
3 0
4 years ago
Read 2 more answers
For the right triangles below, find the exact values of the side lengths and .
konstantin123 [22]

Answer:

c=\frac{2\sqrt{3}}{3}

h=3\sqrt{2}

Step-by-step explanation:

Please see the attached image. It is a good idea it to memorize these triangle properties because you will definitely use them in the future.

c=\frac{2}{\sqrt{3} } =\frac{2*\sqrt{3} }{\sqrt{3} *\sqrt{3} } =\frac{2\sqrt{3}}{3}

h=3\sqrt{2}

5 0
3 years ago
Other questions:
  • Find the range of the function rule y=5x-2 for each domain.<br> {-1.2, 0, 4}
    12·2 answers
  • Use the substitution method to slove the system of equations 2x-y=6 2x-2y=4​
    10·1 answer
  • What's the answer to this problem?
    11·1 answer
  • A block of wood has a volume of 40 cm³, a length of 4 cm, a width of 5 cm. What is the height of the wood
    7·2 answers
  • What numbers are a multiple of both 5 and 15
    11·1 answer
  • Help with these questions please ‼️
    11·1 answer
  • A family plan to catch a ferry and need to book in at 12:02 am. The journey to the ferry port will take 2 hours 45 minutes. What
    12·1 answer
  • What is the value of x?
    6·1 answer
  • Help please :) Whoever helps and gets answer correct gets Brainliest!
    12·2 answers
  • (0,0) (3,-2) in slope-intercept form
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!