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
Elan Coil [88]
3 years ago
14

Giving that ai +bj 5i-2j are perpendicular find the value of a if b=3​

Mathematics
1 answer:
Nonamiya [84]3 years ago
6 0

Answer:

a = \frac{6}{5}

Step-by-step explanation:

Given

ai + bj and 5i - 2j are perpendicular and b = 3, that is

ai + 3j and 5i - 2j are perpendicular, then

The scalar product = 0 , that is

5a - 6 = 0 ( add 6 to both sides )

5a = 6 ( divide both sides by 5 )

a = \frac{6}{5}

You might be interested in
How many times as great is the diameter of a pinhead as the diameter of a cloud-water droplet
Ulleksa [173]

Given:

The diameter of cloud-water droplet is

10^{-5}

The diameter of pinhead is 0.001.

Explanation:

Divide the dimater of cloud-water droplet by dimater of pinhead to determine the times as great is the diameter of a pinhead as the diameter of a cloud-water droplet .

\begin{gathered} a=\frac{0.001}{10^{-5}} \\ =0.001\cdot10^5 \\ =100 \end{gathered}

So diameter of a pin-head is 100 times the diameter of water-droplet.

5 0
1 year ago
Charlie puts $50000 in a stock account, but it loses money at a rate of 20%
Alina [70]

Answer:

You dind't include the answer choices but it should look something like

50000(.8)^t

4 0
3 years ago
The sale price of every item in a store is 85% of its usual price.
Vladimir [108]

Answer

a. The backpack is $4.50

b. The sweatshirt is $2.70

Step-by-step explanation:

a. 30 x 0.15 = 4.50 (The 0.15 is from the price you are actually paying for the item. Because the item is 85% off, you are paying for 15% of the usual price. 15% as a decimal is 0.15 so you multiply that to the original price to find the amount u will pay.)

b. 18 x 0.15 = 2.70  

5 0
3 years ago
Pls click on the photo and answer both questions<br> Pls Answer ASAP :-)
Papessa [141]

Answer: Answer to be MAY be 18, I don't know. Just a guess.

Step-by-step explanation

8 0
3 years ago
Tilly the dog barks every 9 seconds.
Leya [2.2K]
Aww... I have a dog named Tilly, *Ahem* It would take 36 seconds. Hope this helpz...
7 0
3 years ago
Read 2 more answers
Other questions:
  • Susan is trying to decide if she should purchase renters insurance what would you say to advise her on this topic
    8·1 answer
  • Write the equation of line perpendicular to y = 4 that passes through (5, 2).
    10·1 answer
  • Triangle MNP is transformed according to the rule T(4,–1). What is the y-coordinate of M”?
    10·2 answers
  • What is the value of y in the following system of equations?
    15·1 answer
  • Determine if x+3 is a factor of -3x^3+6x^2+6x+9. How do u know
    5·1 answer
  • What is the answer to this question?​
    6·2 answers
  • Mr. Vedra deposited $1,200 in a certificate of deposit (CD) at an interest rate of 5.5%. He earned $198 in simple interest. How
    12·1 answer
  • Give the domain and range of the relation (10,-3),(12,3),(-8,-7),(6,-1)
    7·1 answer
  • Five hundred and two ten thousandths as a decimal ​
    5·1 answer
  • Solve for x if sqrt (3x-8) + 1 = sqrt (x+5)
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!