B = A–1, then A = B–1. This statement is true. The inverse of a matrix is unique, so if B is the inverse of A, then A must be the inverse of B.
what is matrix ?An arrangement of integers in both columns and rows is known as a matrix. learns about matrices' components and dimensions and first presents them. A matrix is a rectangular grid with integers arranged in rows and columns.
The statements that are true about inverse matrices are:
Not all square matrices have inverses. A square matrix only has an inverse if its determinant is not equal to zero. If the determinant of a square matrix is zero, it is called a singular matrix and does not have an inverse.
If A and B are inverse matrices, then A and B must be square matrices. This is because only square matrices can have inverses.
The determinant of a singular matrix is equal to zero. This is because the determinant of a matrix is related to the linear independence of its columns or rows. A singular matrix has linearly dependent columns or rows, which means its determinant is zero.
If A and B are inverse matrices, then A + B = I. This is not necessarily true. In general, the sum of two inverse matrices is not necessarily the identity matrix.
If A and B are inverse matrices, then det(A) x det(B) = 1. This statement is almost true, but the correct statement is det(A) x det(B) = det(AB) = 1.
Any zero matrix does not have an inverse. This is because the determinant of a zero matrix is zero, and therefore it is singular and does not have an inverse.
If B = A–1, then A = B–1. This statement is true. The inverse of a matrix is unique, so if B is the inverse of A, then A must be the inverse of B.
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Answer: B,C,E,F,G
Step-by-step explanation:
Which type of function is shown in the table below.
Answer:
it is a not a function
Step-by-step explanation:
if you times 51 that's a hundred
find the missing side length
Answer:
a
Step-by-step explanation:
Subject: Maths
Level: High-school
Topic: transforming graphs
Points: 90
PLEASE HELP!
(i have the answer for part i, i just need hel with ii and iii)
Answer:
(-1, -5), (-1/2, -3), (-1, -9)Step-by-step explanation:
The function in vertex form is:
f (x) = a(x - h)² + k, where (h, k) is the vertexf(x) = (x - 1)² - 3i) y = f(x) - 2 = (x - 1)² - 3 - 2 = (x - 1)² - 5 ⇒ h = 1, k = -5
Minimum point:
(- 1, -5)ii) y = f(2x) = (2x - 1)² - 3 = 4(x - 1/2)² - 3 ⇒ h = 1/2, k = -3
Minimum point:
(-1/2, -3)iii) y = 3f(x) = 3((x - 1)² - 3) = 3(x - 1)² - 9 ⇒ h = 1, k = -9
Minimum point:
(-1, -9)at the drive in it cost 5 dollars per vehicle plus 2 dollars per person in the vehicle construct an equations from this information
Answer:
5v+2d
Step-by-step explanation:
Hope I helped
if you complete it and it's correct I give you (brainlist)help
Answer:
1. 9
2. 122cm squared
3. 189m
4. 30
5. b
Step-by-step explanation:
1. 27,36,45,54,63,72,81,90,99
2. 12x6=72 10x5=50 50+72=122
3. 21x9=189
4. 5x12=60 60/2=30
5 b because 150 divided by 4 doesn't give you a whole number.
1a simplify 6x × 3y
Solve the system.... 2y+8x+58 and y-5x=11
Answer:
x=2, y=21
Step-by-step explanation:
there are two methods: substiution and elimation. I will be doing subtistution in this soultion:
first isolate y in either equation, it would be easier to do it in the second one.
y= 11+5x
Then, subtitute that into the first equation
2(11+5x)+8x=58 (it says 2y+8x+58 but I assume you mean 2y+8x=58?)
22+10x+8x=58
18x = 36
x=2
substitute that back into y = 11+5x, to get y=11+10 = 21
n: (2x4 + 6x² + 5x° - 45)(x + 3)
Answer:
54565
Step-by-step explanation:
234
The divisor times the quotient plus the remainder will give you the dividend.
True or False
Solve the simultaneous equations
8x + 3y = 45
2x + 3y = 27
x = 3 and y = 7 are the answers to the simultaneous equations 8x + 3y = 45 and 2x + 3y = 27.
What are linear equations?A linear equation is an equation that describes a straight line on a coordinate plane. It is an equation of the form y = mx + b, where x and y are variables, m is the slope of the line, and b is the y-intercept (the point where the line intersects the y-axis).
To solve the simultaneous equations:
8x + 3y = 45 ...(1)
2x + 3y = 27 ...(2)
By adding or removing equations, we can utilise the procedure of elimination to get rid of one of the variables. In this situation, y can be removed by deducting equation (2) from equation (1) as shown below:
(8x + 3y) - (2x + 3y) = 45 - 27
6x = 18
x = 3
In order to obtain the value of y, we can now change the value of x in either equation (1) or (2). Consider using equation (1):
8x + 3y = 45
8(3) + 3y = 45
24 + 3y = 45
3y = 45 - 24
3y = 21
y = 7
Therefore, the solution to the simultaneous equations 8x + 3y = 45 and 2x + 3y = 27 is x = 3 and y = 7.
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Find the slope of the line that passes through the points (1,-4) and (3,-1).
Answer:
(2,3)
Step-by-step explanation:
you go up 3 and forward 2 so it would be positive positive.
round off 599 to 2 significant figure
Answer:
6.0 × 10⁰
Step-by-step explanation:
599 has 3 significant figures
I’m sorry if I keep asking question im not smart but what the answer to both of them thank you
A youth organization decided to go to the movies,
Adult tickets cost $7.00 each, and youth tickets cost $5.00 each. If four
adults purchased tickets, and the total bill cost of the outing was $118.00,
how many youth attended went to the movies?
Answer:
7x + 5y = C
Step-by-step explanation:
Answer:
18 children
Step-by-step explanation:
4x$7=$28
$118-$28=90
90 divided by $5
18Kim drew a map of the Mississippi River. The scale was 5 centimeters represents 120 miles. The actual length of the Mississippi River is 360 miles. Approximately what is the length in centimeters of the Mississippi River on the map?
50 points to who ever answer it corectly
Answer:
15 cm on the map
Step-by-step explanation:
360/120=3
5*3=15
hope this helps :)
What is the missing lenght of X and Y?
Answer:
D. x = 2, y = 2
Evaluate each expression If X equals six 4(x-5)
Answer:
4
Step-by-step explanation:
Let us plug x in to the equation given that it equals 6.
4(6-5)=
4*1=
4
Hope this helps! :)
Please help. I’ll give brainliest
Answer:116.886
Step-by-step explanation:multiply all the sides then devide by 1/2
Answer:
15.312
Step-by-step explanation:
need help plz help me
Answer:
The last one t/5-6=-3
Step-by-step explanation:
All you have to do is plug in 15 to each equation, knowing this if you add 15 into this equation you would get 15/5-6=-3 and this is true because 15/5=3, 3-6=-3!
I hope this helps and have a great day!
pls dont say random stuff to get points
Answer:
C) 3 1/4
Step-by-step explanation:
will make brainliest with correct answer
Answer:
10
Step-by-step explanation:
8² = 64
6² = 36
64 + 36 = 100
√100 = 10
The weight of a baby dog on day one is 5 kilograms. Every day, the dog grows an additional 0.1 kilograms. How heavy the dog is after 10 days?
Unit rate is the quantity of an amount of something at a rate of one of another quantity.
The weight of the dog after 10 days is 5.9 kg.
What is a unit rate?It is the quantity of an amount of something at a rate of one of another quantity.
In 2 hours, a man can walk for 6 miles
In 1 hour, a man will walk for 3 miles.
We have,
Weight of the baby on day one = 5 kg
This can be written as,
1 day = 5 kg
The dog grows 0.1 kg each day.
This means,
On the 2nd day, we get,
2 days = 5 + 0.1
2 days = 5.1 kg
The expression for the weight of the dog on n days can be written as,
n days = 5 + (n -1) x 0.1 _____(1)
Now,
After 10 days we get,
n = 10
From (1) we get,
10 days = 5 + (10 - 1) x 0.1
10 days = 5 + 9 x 0.1
10 days = 5 + 0.9
10 days = 5.9 kg
Thus,
The weight of the dog after 10 days is 5.9 kg.
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The ratio of cars to trucks in a shopping mall is 3 cars to 7 trucks. What is the ratio of trucks to cars? 3:10 3:7 7:3 7:10
Answer: 7:3
Step-by-step explanation:
From the question, we are given the information that the ratio of cars to trucks in a shopping mall is 3 cars to 7 trucks.
The ratio of trucks to cars will simply be the reverse of the ratio given. This will be: = 7:3
Answer:
7:3
Step-by-step explanation:
it says what is the ratio of truck to cars so how many trucks are there? 7 trucks . and how many cars are there? 3 cars so it is 7:3 because there are 7 trucks and 3 cars so you put both of them together there is your answer. Ratio's are very easy.
what times 60 equals 105
Answer:
1.75
Step-by-step explanation:
To do this you would have to do
105/60=1.75
so that would be the answer
How big is it? I need to know like fr
Answer:
10 in
Step-by-step explanation:
Answer:
i got a 6 inch it ain't that small
687.68 divided by 0.7
Answer:
784.14
Step-by-step explanation:
Answer:
982.4
Step-by-step explanation:
Please Brainiest It will help me get to my quest!!??!?!
hello My name es Liliana y arigato bye
Answer:
?????.... hii erica herrrr
Answer:
Hi Liliana i love your name! it's very pretty:) my name is Melody
Step-by-step explanation:
Decide which shipping box (or combination of boxes) she should use to ship exactly 270 necklaces.
Determine the intercepts of the line x-intercept
Answer:
I dont know if you meant where it intercepts the x line or y line so for the x line it intercepts at -7.5 but for y line it intercepts at 5.5
What is the value of ?
86°
84°
?
360
Helpppo !
