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3 years ago

Sasha says that a vector has a direction component in it; therefore, we cannot add two vectors or subtract one from

Mathematics

1 answer:

natima [27]3 years ago

4 0

Answer:

He is incorrect. The addition and subtraction of vector is defined for all cases when you know the information about the vectors

Step-by-step explanation:

Arithmetically you have to find the x-axis and y-axis component for each vector. In case of adition if the components have the same direction you add then, subtract if they have opposite. Always subtraction of two vectors a and b could be defined as the sum of the a plus -b

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You spend £41.01 on groceries, £49.54 on fuel, and £12.50 on lottery tickets, how much do you have left from £105?

Maksim231197 [3]

Answer:

£1.95

Step-by-step explanation:

£41.01 + £49.54 + £12.50 = £103.05

£105 - £103.05 = £1.95

4 0

3 years ago

The total number of fungal spores can be found using an infinite geometric series where a1 = 8 and the common ratio is 4. Find t

Dmitry [639]

The formula for infinite geometric series is equal to a1 / (1-r) where in this problem a1 is equal to 8 and r is equal to 4. In this case, r is not equal to less than 1. This means the sum should be infinity and cannot be determined definitely.

4 0

3 years ago

Read 2 more answers

32^2+42^2<br> pts 4fre<br> yes im aware i spelled it wrong.

Dima020 [189]

Answer:

2788

Step-by-step explanation:

To square a number means to multiply it by itself:

$32^2+42^2=32 \times 32+42 \times 42=1024+1764=2788$

7 0

3 years ago

For quadrilateral ABCD, determine the most precise name for it. A(-2,3), B (9,3), C(5,6) and D(2,6). Show your work and explain.

Arisa [49]

For this case, the first thing to do is to graph the ordered pairs given in the problem.
Then, join the points to see the quadrilateral formed.
In this case the quadrilateral is a trapezoid.
The trapezoid is a geometric figure with four sides, of which only two are parallel.
Answer:
trapezoid
See attached image.

4 0

4 years ago

Solve x^3+3x^2-23x-20=0

adoni [48]

Hello from MrBillDoesMath!

Answer:

x = 4

x = ( -7 + sqrt(29)) /2

x = ( -7 - sqrt(29)) /2

Discussion:

x^3+3x^2-23x-20 factors as (x - 4) (x^2 + 7 x + 5) so x =4 is one root

The roots of the quadratic factor, x^2 + 7x + 5, can be found using the quadratic formula where a = 1, b = 7, and c = 5

x = ( -b +\- sqrt(b^2-4ac)) / 2a

x = ( -7 +\- sqrt( 7^2 - 4*1*5) ) / (2*1) =>

x = ( -7 +\- sqrt (49-20) ) / 2 =>

The "+" root: ( -7 + sqrt(29)) /2

The "-" root: ( -7 - sqrt(29)) /2

Regards,

MrB

5 0

3 years ago