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Vinil7 [7]
3 years ago
12

Find 2u - 3v. u=6i, v=j a. 121-3j b.6i-j c. 12i+3j d.6i-3j e. -12i-3j

Mathematics
1 answer:
ohaa [14]3 years ago
8 0

Answer:

2u - 3v =  12i- 3j/C

Step-by-step explanation:

So it says U = 6i, if you do 2 x 6i you get 12 i

Then 3 x v which is j gets you 3 j

If you add the 2 answers together you get 12i - 3j

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Sandy is driving cross country. She has covered 200 miles from the east coast towards the west coast. She has driven this distan
lilavasa [31]

Okay so here it is

the answer is M=100D + 200

Why?

because 200miles divided by 2 days is 100 so every day she drives 100 miles which means you would times the days by 100 miles and since you have already gone 200 miles it would be

m=100d+ 200

hope this helps


7 0
3 years ago
The measures of the angles of ABC are given by the expressions in the table A( 6X - 1 ) ° B 20° C ( x + 14 ) ° what are the meas
lawyer [7]

Answer:

Step-by-step explanation:

The sum of the angles in a triangle is 180 degrees. This means that in triangle ABC,

Angle A + angle B + angle C = 180

Therefore,

6x - 1 + 20 + x + 14 = 180

6x + x + 20 + 14 - 1 = 180

7x + 33 = 180

Subtracting 33 from the left hand side and the right hand side of the equation, it becomes

7x + 33 - 33 = 180 - 33

7x = 147

Dividing the left hand side and the right hand side of the equation by 7, it becomes

7x/7 = 147/7

x = 21

Therefore

Angle A = 6x - 1 = 6 × 21 - 1

Angle A = 125 degrees

Angle C = x + 14 = 21 + 14

Angle C = 35 degrees.

7 0
3 years ago
QUESTION<br> WORTH<br> 20 POINTS!!! HELP ASAP PLEASE<br> why am i alive
guajiro [1.7K]

Answer:

Cause you were born, as simple as that. Plenty of people deal with harsh life.

Step-by-step explanation:

That's not a math question BUT

4 0
2 years ago
Read 2 more answers
Carlos can ride his bike 30 km in 2 hours. At the same rate, how far can he ride in 7 hours?
lozanna [386]
He can ride his bike 105 km. 30/2 is 15. 15*7 is 105.

:D

5 0
4 years ago
Read 2 more answers
1. round the result to 2 decimal places. -0.9x+2.8=4.1
lora16 [44]
1. <span>-0.9x+2.8=4.1
First subtract 2.8 from both sides.
-0.9x = 1.3
Now divide both sides by -0.9.
x = -1.4444..
This can be rounded to -1.44
</span><span>c) -1.44

2. Jordan has 650 pennies. He'll give 85 to his brother and split the rest with his sister.
</span>d) 85+2x=650
5 0
3 years ago
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