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hjlf
4 years ago
15

What the questions are asking help ASAP please

Mathematics
1 answer:
Rudiy274 years ago
3 0

Answer:

Step-by-step explanation:

A scalar is a constant value that is multiplied throughout a matrix.

e.g.

In number 1 the set up would look like this

3 * \left[\begin{array}{ccc}3&-1&5\\2&1&-4\\-6&3&2\end{array}\right]

To solve this, you must distribute the 3 to each value within the matrix

The solution to #1 would be

M = \left[\begin{array}{ccc}9&-3&15\\6&3&-12\\-18&9&6\end{array}\right]

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Write an equivalent expression by distributing the "_" sign outside the parentheses: -k - (-6.2m+1)​
nevsk [136]

Answer:

-k + (6.2m - 1)

Step-by-step explanation:

You distribute the negative to everything in the parentheses and change the sign to addition.

3 0
4 years ago
Help with this pls? I’m very lost thank u!!
o-na [289]

Answer:

Description

Step-by-step explanation:

1. Factor 2x^2+11x+12 -> (2x+3)(x+4)

x=-4, -3/2

Both numbers are rational numbers as both can be expressed in the form in a quotient with integer values.

2. If discriminant is negative, then solutions are imaginary, meaning that the discriminant is less than 0, so you can set up this equation.

11^2 - 4(a)(12) < 0

121 - 48a < 0

a>121/48

The closest integer to 121/48 (~2.52) such that it satisfies the above conditions is 3, so the lowest value for a is 3.

Change the wording a bit, and type in your answer.

4 0
3 years ago
A contractor bought 7.6 ft to the second power of sheet metal. he has used 3.7ft to the scound power so far and has ​$117 worth
bonufazy [111]

Answer:

x= 30

Step-by-step explanation:

8 0
3 years ago
Suppose that the cost of producing n pairs of shoes is given by the expression c(n)=30+5n. the average cost of producing a pair
makkiz [27]
<h3>Given</h3>

c(n)=30+5n\\a(n)=\dfrac{c(n)}{n}

<h3>Find</h3>

\dfrac{d}{dn}(a(n))\quad\text{at n=10}

<h3>Solution</h3>

\dfrac{d}{dn}(a(n))=\dfrac{d}{dn}\left(\dfrac{30+5n}{n}\right)=\dfrac{d}{dn}\left(30n^{-1}+5\right)\\\\=-30n^{-2}\\\\=-30\cdot 10^{-2}\qquad\text{at n=10}\\\\=-0.30

The derivative of the average cost function at n=10 is -0.30.

7 0
3 years ago
Please help.<br> Is algebra.<br> PLEASE HELP NO LINKS OR FILES
Nastasia [14]

Answer:

1st Question: D

2nd Question: Is either C or D

Hope this helps :)

5 0
3 years ago
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