Mathematics High School

How to do matrix multiplication.

Answers

Answer 1

Answer:

A Matrix is an array of numbers:

2x3 Matrix

A Matrix

(This one has 2 Rows and 3 Columns)

To multiply a matrix by a single number is easy:

Matrix Multiply Constant

These are the calculations:

2×4=8 2×0=0

2×1=2 2×-9=-18

We call the number ("2" in this case) a scalar, so this is called "scalar multiplication".

Related Questions

what does it mean to use quotient powers?

Answers

When you are dividing like terms with exponents

When we use the concept of power and a denominator in it, we will describe the root in another form.

What is the definition of potency?

Potency is that which has power, strength, vigor and importance. In mathematics, power is the result of a number multiplied by itself one or more times. .

The base equation of the power is:

[tex]a^b = c[/tex]

Where:

a = base; b = exponent; c = power.

So from the definition of power we have that when a division in the power occurs we will have to be the same thing as writing a root.

See more about power at brainly.com/question/1618040

What is meaning of irrational exponents.

Answers

Answer:

Here

Step-by-step explanation:

Irrational exponents are non repeating or infinite decimals while rational exponents are rational numbers. The value of an irrational exponent when calculated is approximate in nature while the value of rational exponent is exact.

△RQP≅△ONM. Find the value of x. ( I WILL GIVE BRAINLIEST! PLS HELP!)

refer to attachment

Answers

Answer:

x = 25

Step-by-step explanation:

According to picture, PQ and MN are corresponding sides of congruent triangles.

PQ = MN70 = 3x - 53x = 70 + 53x = 75x = 25
MN=PQ3x-5=703x=75x=75/3x=25

Find the vertex and the axis of symmetry.

Answers

Answer:for the vertex I believe it is y-9 and x-2 for axis of symmetry

Step-by-step explanation:

Answer:

a. Downwards

b1. x intercept = (-4,0) (8,0)

b2. Y intercept (0,8)

c. Vertex (2,9)

d. Axis of symmetry 2

Step-by-step explanation:

solve pls brainliest

Answers

Answer:0.16 bar ontop of 6

Step-by-step explanation:

Answer:

0.166

Step-by-step explanation:

I did this about 2 years ago

A car travels 60 miles per hour. What is the total distance the car will travel in 60 minutes?

Answers

Answer:

The car will drive 60 miles in 60 minutes (an hour)

Step-by-step explanation:

For every hour driven (60 minutes) the person will drive 60 miles, therefore it will travel a distance of 60 miles in 60 minutes

6x + 19y = –10 in slope intercept form

Answers

6x+19y=-10 in slope- intercept form is y=-6/19x-10/19

Answer:

y = (-6/19)x - 10/19

Step-by-step explanation:

Solving 6x + 19y = –10 for y, we get 19y = -6x - 10, or y = (-6/19)x - 10/19.

This is in slope-intercept form.

Find the measure of each angle.



Given: m∠2=x
m∠3=x−16

Solutions:

m∠2=

m∠3=

Answers

Answer:

m∠2 = 98°,   m∠3 = 82°

Step-by-step explanation:

I'm going to assume this is a straight angle

Supplementary angles

Supplementary angle are two angles that equal 180°

m∠2+m∠3=180°

-Substitute

m∠2+m∠2-16=196°

add both side by 16°

2m∠2=196°

Divide both sides by 2

m∠2=98°

Since we said m∠3 = m∠2 - 16°

m∠3 = 82°

Convert 55.1% to a fraction in simplest form and a decimal.

Answers

Answer:

551/10      0.551

Step-by-step explanation:

Answer:

Fraction = 551/1000

Decimal = 0.551

Step-by-step explanation:

55.1% to fraction = 55.1/100 or 551/1000

55.1% to decimal = 0.551

-Chetan K

Yuri surveyed a random sample of 75 students in his school about their favorite color. Of the students surveyed, 49 chose lavender as their favorite color. If there are 908 students at the school, what is a valid estimate of the number of students whose favorite color is lavender?

600 students

300 students

450 students

800 students

which one?

Answers

Answer:

600

Step-by-step explanation:

Take the number that answered lavender and divide by total # of students surveyed

49/75 = .653333 or 65.3%

then take the total # of students and multiply by .6533333

908x .6533333 = 593.22

so the closest estimate is 600

-- Gage Millar, Algebra 1/2 tutor

6x-7y=7andx-7y=-8 find valve of x and y​

Answers

Answer:

x = 3, y = 11/7.

Step-by-step explanation:

6x - 7y = 7

x - 7y  = -8   Subtract:

5x = 15

x = 3

3 - 7y = -8

-7y = -11

y = 11/7.

Answer: x = 3 and y =  11/7

Step-by-step explanation: 6x-7y+(-6x) = 7+(-6x)                                             -7y/-7 = -6x+7/-7                                                                                                     y = 6/7x-1                                                                                                               x-7 (6/7 (x) -1) = -8                                                                                             -5x+7+(-7) = -8+(-7)                                                                                         -5x/-5 = -15/-5                                                                                                        x = 3                                                                                                                         y = 6/7x-1                                                                                                               y = (6/7) (3) -1                                                                                                         y = 18/7-1                                                                                                                 18/7-1/1                                                                                                                 18/7-7/7                                                                                                                 y= 11/7                                                                                                                     x = 3 and y =  11/7

                 

solve the mean of 4,5,3,4,3,1

Answers

Answer:

3.333 recurring

Step-by-step explanation:

Add and divide for the mean

Answer:

refer to the pic attached for steps

Which of the graphs below would result if you made the leading term of the
following function negative?
F(x) = 2x4 + 2x + 2

Answers

[tex]\huge\underline\mathtt\colorbox{cyan}{Graph B}[/tex]

[tex]\huge\mathsf\colorbox{white}{}[/tex]

Step-by-step explanation:

Graph B consists of a parabola that opens downward. If a parabola opens downward, the the coefficient of x will be negative.

More details:

There is an easy way to tell whether the graph of a quadratic function opens upward or downward: if the leading coefficient is greater than zero, the parabola opens upward, and if the leading coefficient is less than zero, the parabola opens downward.

60x4= blank tens x 4 = blank tens = blank

Answers

Answer:6 tens

Step-by-step explanation:

Simple. 60 equals 6 tens so blank equals 6 tens

Blank tens = 6

Hope this helps :)

what number is one less than a cube number 20 22 24 26

Answers

Answer:

18

Step-by-step explanation:

:)

A different toy store marks down all
of their toys by 25% in January.
How much does a $50 remote
controlled car cost during January's
sale?

Answers

Answer: $ 37.50

Step-by-step explanation:

$50.00 x 25% = 12.50

$50.00 - $12.50 = $37.50

Enter an expression equivalent to (x^4 y^3 y)^2 in the form x^m y^n

Answers

Answer:

Step-by-step explanation:

4, 3.7, 3.4, 3.1, ____, ____, ____ what are the next terms

Answers

Answer:

the next terms are 2.8 , 2.5 and 2.2

Please help! (picture is linked)

Answers

The units of the answer should be cubed, not squared. So, it should be 80 ft^3, not 80 ft^2.

Please help me solve this!

Answers

Y=2 X=4. Your welcome. Good Luck!

(8)
slope?
y-intercept?
(9)
slope?
y-intercept?​

Answers

8: slope is 1/2 and y intercept is 0

9: slope is 7/4 and y-intercept is 0

Please help me on this math problem. I does not make any sense>

Answers

Answer: She did not create it correctly because we have two science students and six music students instead of three science students and five music students. I believe pie charts work well because they give a quick overview of the students.

Would appreciate brainly <3

. You want to buy a book worth Php 220.50. You can buy it only by making a sacrifice of not buying a soft drink every day. If soft drinks in your school cost Php15.75, how many days do you need to save before you can buy the book? * A. 13 B. 14 C. 15 D. 16

Answers

Answer:

B-14

Step-by-step explanation:

Divide 220.50 by 15.75 and you will get 14

Hope it can help you lovelots

Is this a function?

Answers

Answer:

No, because if you do the vertical line test, the line will hit that two times, Therefore it is not a function.

Step-by-step explanation:

sum of all positive integers up to 1000

​

Answers

Step-by-step explanation:

995. Therefore, the sum of all positive integers up to 1000, which are divisible by 5 and not divisible by 2 is 50000.

Slope of a line pls answer

Answers

Answer:

[tex]m = - \frac{1}{2}[/tex]

Step-by-step explanation:

hope this helps!



A temperature of -3°F is how many degrees below the freezing
temperature of water?

Answers

Answer:

Step-by-step explanation:

6

Potential energy is described as

Question 1 options:

Stored energy


Decreasing energy


Movement


Friction

Answers

Answer:

Stored energy

Step-by-step explanation:

Dave spent 21 minutes completing a race. He walked 9 minutes and jogged the rest. What
is the ratio of time he jogged to time he walked?

Answers

Dave jogged for 9 minuets and walked for 12 minuets

HELP!!
Formula
Y=___x +___

Answers

I believe it’s y = mx + b.

Answer:

look at the slope rise of 2 run of -1 or other way around so slope is

[tex] y = - \frac{2}{1}x + 5[/tex]

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