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Radda [10]
3 years ago
9

Matrices cannot be multiplied. True False

Mathematics
2 answers:
kirill115 [55]3 years ago
6 0
You can multiply matrices if and only the number of the columns in the first matrix equals the number of rows in the second matrix. Otherwise the product of the two matrices is undefined
harkovskaia [24]3 years ago
5 0

You can only multiply them if the number of the first column (up and down) is the same as the 2nd row (across)

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Please I need some help!
Schach [20]

(f+g)(x) = 8x+2

(f-g)(x) = 4x-6

Step-by-step explanation:

Given

f(x) =6x-2\\g(x)=2x+4

we have to find

<u>a. (f+g)(x)</u>

(f+g)(x)=f(x)+g(x)\\=(6x-2)+(2x+4)\\=6x-2+2x+4\\=6x+2x-2+4\\=8x+2

<u>b. (f-g)(x)</u>

(f-g)(x)=f(x)-g(x)\\=(6x-2)-(2x+4)\\=6x-2-2x-4\\=6x-2x-2-4\\=4x-6

Hence,

(f+g)(x) = 8x+2

(f-g)(x) = 4x-6

Keywords: Functions, Operations on Functions

Learn more about functions at:

  • brainly.com/question/4021035
  • brainly.com/question/4034547

#LearnwithBrainly

7 0
3 years ago
Lilly made a 89 on her Math test. The test had 26 questions, how many questions did she miss?
anygoal [31]
She missed 3 questions, 


11/100 equals x/26 
^set up this proportion 
you get 286 equals 100x
and x equals 2.86

round this to 3 questions

to check your work, do 23/26 
6 0
3 years ago
What is the value of x
Anvisha [2.4K]

x + 75 + x + 125 = 180

2x = 180-75-125

2x = -20

x = -10

3 0
3 years ago
Read 2 more answers
Answers:
Anit [1.1K]
Can I see the picture it’s blurry
4 0
3 years ago
Read 2 more answers
(50 POINTS!!!) find the total surface area and volume, then multiply by $0.004. please show your work!!
mrs_skeptik [129]

The Total surface area of the square pyramid = 115.2 in.²

The Volume of the square pyramid = 1,024 in.³.

<h3>What is the Total Surface Area of a Square Pyramid?</h3>

The total surface are of a square pyramid is given as: TSA = SA = 1/2(P × l), where:

P = perimeter of the square base

l = slant height of the pyramid

<h3>What is the Volume of a Square Pyramid?</h3>

The volume of a square pyramid = 1/3(a³ × h), where:

a = edge of the square base

h = height of the pyramid

Find the Total surface area of the Pyramid:

P = 4(a) = 4(8) = 32 in.

l = 7.2 in.

Total surface area of the square pyramid = 1/2(32 × 7.2)

Total surface area of the square pyramid = 115.2 in.²

Volume of the square pyramid:

a = 8 in.

h = 6 in.

Volume of the square pyramid = 1/3(8³ × 6)

Volume of the square pyramid = 1,024 in.³

Learn more about the square pyramid on:

brainly.com/question/3688277

#SPJ1

6 0
2 years ago
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