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
liubo4ka [24]
3 years ago
9

Determine the value of a so that A = 2i+aj+k and B = 4i-2j-2k are perpendicular​

Mathematics
1 answer:
Digiron [165]3 years ago
7 0
In order to make them perpendicular, their dot product must result in zero. so:

4 \times 2 - 2a - 2 \times 1 = 0

2a = 8 - 2 = 6

a = 3
You might be interested in
Write the number 164 in expanded form
Lapatulllka [165]
If you were to write 164 in expanded form, it would be 100 + 60 + 4 = 164
Hope this helps and can I get brainliest answer bc i need it to rank up!! :D
7 0
3 years ago
Read 2 more answers
Analyze the following pattern 1,2,5,10,7
vodka [1.7K]

Answer:

an + 1 = an + 2n -1 ,a 1=1

a8= 50

Step-by-step explanation:

an+1=an+2n-1,a1=1

a6=a5+2x5-1

a6=26

a7=26+11

a7=37

a8=37+13

a8=50

6 0
3 years ago
Plsssssssssssssssssssss help me fast
zlopas [31]

Answer:

The answer is 95cm2

Step-by-step explanation:

A=b×h

=19×5

= 95 cm2

please mark me the brainliest

5 0
2 years ago
Read 2 more answers
Juan bought a gift for his friend. He wants to place the gift in a package with the length of 8 inches, width of 7 inches, and t
creativ13 [48]
266 is the answer 

hope u saw this in time 
3 0
3 years ago
How much longer is a 1inch button than a 3/8 inch button
neonofarm [45]
5/8 inches longer since 8/8 - 3/8 = 5/8
4 0
3 years ago
Other questions:
  • What is the domain of f(x) = 1992(x + 3) + 2?<br>​
    6·1 answer
  • Jackson and derek have a lemonade stand. They sell lemonade in 12oz cups. They are hoping to sell at least 50 cups of lemonade.
    15·1 answer
  • I’ll give you Brainliest
    15·1 answer
  • <img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B%20%5Cfrac%7B5%7D%7B27%7D%20%7D%20" id="TexFormula1" title=" \sqrt{ \frac{5}{27}
    13·1 answer
  • The Falcons ran 10 yards, lost 15 yards, then ran 5 yards. What was the Falcons total gain/loss?
    13·1 answer
  • The point (6, n) lies on the circle whose equation is (x − 1)2 + (y − 5)2 = 50. Find the values of n
    8·2 answers
  • Put smallest to largest<br><br> 4.3 4.303 4.03 4.33 4.033 4.003
    11·1 answer
  • Please help I'm so confused pls look at picture ​
    14·1 answer
  • Help me solve this question
    6·1 answer
  • this theorem states that if each leg in a right triangle is congruent to a leg and another right triangle, then the two triangle
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!