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elena-14-01-66 [18.8K]
3 years ago
6

If A and B are matrices of the same order, then

Mathematics
2 answers:
masha68 [24]3 years ago
3 0

Answer:

equal to

not equal to

Step-by-step explanation:

If A and B are matrices of the same order, then

cA + cB is equal to c(B + A)

cA - cB is not equal to c(B-A)

V125BC [204]3 years ago
3 0

Answer: The above answer is correct.

Step-by-step explanation: I got this correct on edmentum.

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Find a vector 3 units long in the opposite direction from v = 〈3, 1,-4).
lutik1710 [3]

Unit vector along the direction v = <3,1,-4> is :

\hat{v} = \dfrac{3i + j  -4k}{\sqrt{3^2 + 1^2 + 4^2}}\\\\\hat{v} = \dfrac{3i + j -4k}{5.1}

So, unit vector opposing the \hat{v} is :

\hat{v'} = -\hat{v}\\\\\hat{v'} = -( \dfrac{3i + j -4k}{5.1})\\\\\hat{v'} = \dfrac{-3i - j +4k}{5.1}

so, vector of magnitude 3 units in opposite direction from v is :

\vec{V} = 3\hat{v'}\\\\\vec{V} = \dfrac{3}{5.1}( -3i -j+4k)

Hence, this is the required solution.

5 0
3 years ago
Which of the following equations can be used to find the length of in the
ANEK [815]

The other leg will be LN² = 33² - 11². Then the correct option is A.

<h3>What is a Pythagoras theorem?</h3>

The Pythagoras theorem states that the sum of two squares equals the squared of the longest side.

The Pythagoras theorem formula is given as

H² = P² + B²

The hypotenuse is 33 units and one leg is 11 units.

Then the other leg will be

33² = LN² + 11²

LN² = 33² - 11²

Then the correct option is A.

More about the Pythagoras theorem link is given below.

brainly.com/question/343682

#SPJ1

3 0
2 years ago
Find m∠MON pls______
Wittaler [7]

Answer:

57°

Step-by-step explanation:

∠LOM and ∠MON are complementary angles, so they add up to 90.

This means that:

3x-15 + 5x-23 = 90 =>

8x - 38 = 90 =>

x = 128/8 = 16

So m∠MON = 5*16 - 23 = 57°

5 0
3 years ago
Find Au B if A ={ 4,7,10,13,17} and B={3,5,7,9}.
Marrrta [24]
Combine the two sets to form one giant set. If needed, toss out any duplicate values.

So,
A U B = {4,7,10,13,17,  3,5,7,9}

Toss out the duplicate item "7" and sort the values to get

A U B = {3,4,5,7,9,10,13,17}
4 0
4 years ago
Read 2 more answers
The sum of twice a number and three equals five. Find the number
Anna71 [15]
2n + 3 = 5 
2n = 2
n = 1
the sum of 2 times a number and three means you add 2n + 3 and since it is equal to 5 you then solve for n.
6 0
3 years ago
Read 2 more answers
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