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
stepan [7]
3 years ago
8

Let v=-9i+j and w=-i-6j find 8v-6w

Mathematics
1 answer:
hram777 [196]3 years ago
7 0

Answer:

78i+52j

Step-by-step explanation:

8(9i+2j)-6(-i-6j)

72i+16j+6i+36j

=78i+52j

You might be interested in
The Varners live on a corner lot. Often children cut across their lot to scar walking distance. The diagram to the right represe
icang [17]
About 12.56 units. 
Solve for x by plugging in values into Pythagorean theorem.
a^{2} +b^{2} = c^{2}
x^{2} +(x+12)^{2} = 34^{2}
Simplify
2x^{2} + 24x+144 = 1156
Subtract 144 from both sides
2x^{2} + 24x = 1012
divide both sides by 2
x^{2} + 12x = 506
complete the square
x^{2} + 12x + 36 = 506 +36 . = (x+6)^2 = 542
take the square root of both sides.
x+6 = 23.28
subtract by 6 to get  about 17.28 for x.
Plug in values for x to get distance traveled on outside of the yard.
17.28 + (17.28 +12) = 46.56
subtract 34 from the length to get the difference in travel. 46.56-34=12.56

8 0
4 years ago
A jet flies 405 miles in 5 hours. At this rate. how far could the jet fly in 15 hours? PLS
Marizza181 [45]

Answer: 1215 miles

Step-by-step explanation:

405 miles in 5 hours is 81 mph so you multiply that mph by the amount of hours you want (15)  so 81 x 15 = 1215

3 0
3 years ago
How much did it cost summer to to buy 2.6 pounds of granola at the old price
coldgirl [10]
It was $6.00 per pound.  So 2 pounds would be $12.  But there is still that .6 of a pound left.  If we know 1 pound costs $6, then we know 1/10th of a pound will cost $0.60.  So 6 x .60 = 3.60.  Add 12 and 3.60, and you get 15.60 for 2.6 pounds of granola at the old price.
6 0
3 years ago
Read 2 more answers
Properties of parallelograms <br> PLEASE HELP
kvv77 [185]

Answer:

m∠Q = 109°

m∠QRT = 109°

x = 4

Step-by-step explanation:

1). "Opposite angles of a parallelogram are equal"

By this property,

m∠Q = m∠S = 109°

2). "Opposite sides of a parallelogram are parallel and equal in measure"

By this property,

RQ║ST and diagonal RT is a transversal line.

m∠QRT = ∠SRT = 30° [Alternate interior angles]

3). "Opposite sides of a parallelogram are parallel and equal in measure"

RS = QT

2x = 8

x = 4

3 0
3 years ago
Is the difference between a positive mixed number and a negative mixed number always, sometimes, or never positive?
Annette [7]
Ok It depends upon what the order of the terms might be

 

If we consider that the positive mixed number is the first term and the negative mixed number is the second term and we consider "difference" to be subtraction.....then the result is positive

 

For example

(3 + 1/2) -  [ -(1 + 1/2)] =

 

(3 +1/2) + (1 + 1/2) = 5   since subtracting a negative results in a positve

 

But....if we had the reverse order with the same operation, we would have

 

-(1 + 1/2) - (3 + 1/2)   and the result is - 5

 

Hence.......I would go with "sometimes"

 

5 0
3 years ago
Other questions:
  • 5 divided by what equals 9
    14·2 answers
  • 1) Point O is between points A and B, find AB =? Draw.
    7·1 answer
  • 10] James is about to paint the walls of his lounge. The lounge has 4 walls (2 x Wall A and 2 x Wall B). Wall A and wall B which
    14·1 answer
  • Find g in the right triangle.
    8·2 answers
  • Who listens to this if you do just answer or do this &lt;3
    14·2 answers
  • Someone please help me
    7·2 answers
  • Please help before 2:10 pleaseee
    14·1 answer
  • At Crescent High School, 96 students plan on going to an in-state college and 56 students plan on going to an out-of-state colle
    13·2 answers
  • If x = 10, which equation is true? *
    8·2 answers
  • Help anyone please<br><br><br> Giving out brainliest
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!