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insens350 [35]
3 years ago
5

V = 3i – 5j and w = -7i + 4j , find 3v – 4w​?

Mathematics
2 answers:
Shalnov [3]3 years ago
6 0
3v - 4w
3(3i-5j) - 4(-7i+4j)
= (9i-15j) - (-28i+16j)
Part 1) 9i - - 28i = 9i + 28i = 37i
Part 2) -15j - 16j = -31j

Answer: 37i - 31j
astraxan [27]3 years ago
4 0

Answer:

5i - 45j

Step-by-step explanation:

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Been posting this question for days now (Q5) ....pls I beg of you if you don't know don't reply ​
Firdavs [7]

Answer:

a. Another letter that have corresponding angles is the letter 'E'

b. Another letter that have alternate angles is the letter 'N'

Step-by-step explanation:

The capital letter 'F' can be described as letter can be presented as follows;

Two horizontal parallel lines touching and perpendicular to a common transversal

Therefore, the parallel lines in the letter 'F' and their common transversal form corresponding angles below each parallel line and the common transversal

The two horizontal lines in the capital letter Z and the inclined transversal form alternate angles between the transversal and the parallel lines, in the region between the parallel lines and on opposite sides of the transversal

a. Another letter that have corresponding angles is the letter 'E'

b. Another letter that have alternate angles is the letter 'N'

5 0
3 years ago
The lengths of the sides of a triangle are 3, 3, and the square root 3. Can the triangle be a right triangle?
Readme [11.4K]
First find the decimal equivalent of square root 3: SQRT(3) = 1.732 ( roughly)
 
If the base and height were each 3, then the hypotenuse would need to be:

3^2 + 3^2 = C^2
9 + 9 = C^2
18 = C^2
C = SQRT(18) = 4.24

This is larger than sqrt(3), so this cannot be a right triangle.


If one leg was 3 and the other leg was sqrt(3) then the hypotenuse would be:
3^2 + 1.73^2 = C^2
9 + 3 = C^2
12 = C^2
C = SQRT(12) = 3.46

This is larger than 3, this cannot be a right triangle.

The answer is b) no.





8 0
4 years ago
Read 2 more answers
I'm not sure if I am right and just want to make sure I got the right answer
djyliett [7]

Answer:

The answer is 9

Step-by-step explanation:

The answer is 9

7 0
3 years ago
Make x the subject of the formula<br>y = mx + b​
zubka84 [21]

Step-by-step explanation:

y=mx+c

Take c from both sides:

y-c = mx

Divide both sides by m:

(y-c) / m =x

Now swap sides to make it prettier:

x = (y-c) / m

6 0
3 years ago
Read 2 more answers
Can someone solve number 6, and show your work plz
Romashka [77]

Answer:

<em>3.9 kg</em>

Step-by-step explanation:

total mass = (number of nails) * (mass of one nail)

total mass = 750 * 5.2 * 10^(-3) kg

total mass = 750 * 5.2 * 10^(-3) kg

total mass = 750 * 0.0052 kg

total mass = 3.9 kg

6 0
3 years ago
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