![Select The Correct Answer[B] = -|A|, Which Matrix Is Matrix B?](https://brainimage.s3.us-east-005.backblazeb2.com/contents/attachments/lvtSy6t0vUPwFh6R2H0dyG6tm2FGKcfi.png)
Answers
Answer:
c
Step-by-step explanation:
Matrix B is [tex]\left[\begin{array}{ccc}12&1\\13&5&\\\end{array}\right][/tex].
Here, given condition is,
[tex]A = \left[\begin{array}{ccc}-2&5\\7&6&\\\end{array}\right][/tex]
And, l B l = - l A l
What is Matrix?
Matrix is an ordered rectangular arrangement of numbers.
Now,
[tex]A = \left[\begin{array}{ccc}-2&5\\7&6&\\\end{array}\right][/tex]
⇒ l A l = 6 x -2 - 5 x 7 = -12 - 35 = -47
Clearly, by option B;
[tex]B = \left[\begin{array}{ccc}12&1\\13&5&\\\end{array}\right][/tex]
⇒ l B l = 12 x 5 - 1 x 13
= 60 - 13 = 47
Hence, l B l = - l A l
So, Matrix B is [tex]\left[\begin{array}{ccc}12&1\\13&5&\\\end{array}\right][/tex].
Learn more about the matrix visit:
https://brainly.in/question/23669553
#SPJ2
Related Questions
Express 6.925 x 10^–5 in standard form.
A. 0.00006925
B. 0.0006925
C. 6.92
D. 692,500
Answers
es la de por qué si no es nada malooo y tu qué haces con tu
Answer:
0.00006925
Step-by-step explanation:
Help with this please.!!!!!!!!!!!!!!
Answers
Is this all tho?
Sam cut a 28-foot rope into 4 equal pieces. How long is each piece of rope in inches? -HELP PLEASE THIS IT DUE IN 5 MINUTESSS
Answers
Answer:
84 inches
Step-by-step explanation:
12 inches are in 1 foot, so you take the number of feet (28) and multiply by the number of inches in a foot (12)
28×12=336 (inches)
then you take 336 and divide by 4 to get your 4 equal pieces.
336 divided by 4 = 84, 84 inches
If a dice is thrown, then choose the correct statement from below.
Answers
The correct statement is one in six chance of rolling a two.
What is Probability?Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.
The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.
The degree to which something is likely to happen is basically what probability means.
We have,
A dice is thrown.
So, the chances of getting 2 is 1/6
and, the chance of getting odd number is 3/6 or 1/2.
and, the chance of getting six is 1/6.
So, the correct statement is
one in six chance of rolling a two
Learn more about Probability here:
https://brainly.com/question/30034780
#SPJ2
A sequence has an initial term a1=22 and a recursive formula an=an−1−10.
What is the explicit formula for the sequence?
an=22+10(n−1)
an=22−10(n−1)
an=10−22(n−1)
an=10+22(n−1)
Answers
Answer:
B. aₙ = 22 - 10(n - 1)Step-by-step explanation:
Recursive formula:
a₁ = 22aₙ = aₙ ₋₁ - 10Common difference is d = -10Explicit formula:
aₙ = a₁ + (n - 1)d = 22 + (n - 1)*(-10) = 22 - 10(n - 1)Correct choice is B
whats something you regret the most ..
Answers
just ask a normal question my guy
What's 28x90????????
Answers
Answer:
use a calculator
Step-by-step explanation:
Answer:
2520
Step-by-step explanation: Calculator
For 60 points and brainliest Guy’s Gym charges a one time fee of $100 plus $5 per month. Bob’s Gym charges a one time fee of $160 plus $8 per month. After how many months will both gyms charge the same amount?
Answers
Answer:
-20
Step-by-step explanation:
They're never going to be the same because Bob's Gym starts at a higher number and also increases by a larger number
Answer:
-20 months lol
Step-by-step explanation:
so the first step to this is to create and equation for each
for guys gym the equation would be 5x+100 and for bob's gym the equation would be 8x+160
because we want them to equal each other we write the equation
5x+100=8x+160 and solve for x to see how many months it will take for the gyms to charge the same amount
step 1 subtract 100 from each side
5x=8x+60
step 2 subtract 8 from each side
-3x=60
step 3 divide each side by -3
x=-20 it will take -20 week for them to charge the same amount
(i think there might of been a mistake in the question lol)
Convert –2y2 + x – 4y + 6 = 0 into standard form.
x = 2(y + 1)2 – 6
x = 2(y + 1)2 – 8
x = 2(y + 1)2 – 7
x = 2(y + 1)2 + 8
Answers
Answer:A
Step-by-step explanation:
X=2(y+1)^2-6
The equation in the standard form is x = 2(y + 1)² – 8. Then the correct option is B.
What is a quadratic equation?The quadratic equation is given as ax² + bx + c = 0. Then the degree of the equation will be 2. Then we have
Convert –2y² + x – 4y + 6 = 0 into standard form.
Simplify the equation, we have
x = 2y² + 4y – 6
x = 2(y² + 2y) – 6
x = 2(y² + 2y + 1) – 2 – 6
x = 2(y + 1)² – 8
Then the correct option is B.
More about the quadratic equation link is given below.
https://brainly.com/question/2263981
#SPJ5
A save percentage in lacrosse is found by dividing the number of saves by the number of shots faced. A lacrosse goalie saved 9 of 12 shots. How many additional consecutive saves must the goalie make to raise his percentage to 0.850?
Answers
he would have to take 8 more shots.
Step-by-step explanation:
9saves divided by 12 shots = .75
if you keep adding a shot and a save each time, you get to 17saves divided by 20shots=.85.
Hope this helps!
The percentage can be determined by multiplying the fraction to 100. In order to raise his save percentage to 0.850 goalie has to make one additional save.
Given that,
The number of shots saved out of 12 = 9.
Save percentage = (number of saves ÷ number of shots faced)
In the given case save percentage is as below,
= 9 ÷ 12
= 0.75
Suppose the number of saves to increase the save percentage to 0.85 be N.
Then as per the question,
0.85 = N ÷ 12
=> N = 12 × 0.85
=> N = 10
Thus, the number of additional saves is given by 10 - 9 = 1.
Hence, goalie must make one additional save to raise his percentage to 0.850.
To know more about percentage click on,
brainly.com/question/29306119
#SPJ5
Part II: Free Response
Xander went on a road trip with some friends. He recorded the following information on their
way to their destination:
• The trip took 2 hours
The car they took gets 28 miles
5 gallons of gas were used
per gallon
The price of gas was $4.00 per
Xander's average speed was 70
gallon
miles per hour
.
.
How far away was their destination? (Show your work.)
Inload
Answers
Answer:
Step-by-step explanation:
PLEASE ANSWER QUICK
What is the unit rate for the ratio 96:8
Answers
Answer:
12:1
Step-by-step explanation:
96/8 = 12
A kite is attached to a point on the ground with some string. The kite string is 75 feet
long. If the angle that the kite string makes with the ground is 35º, how far above
the ground is the kite? Round to the nearest hunderedth.
Answers
[tex]sin = \frac{opp}{hyp} [/tex]
[tex] \sin(35) = \frac{opp}{75}[/tex]
[tex]opp = 75 \sin(35) [/tex]
[tex]opp = 43.0182327263 \: feet[/tex]
The kite is 43.02 feet above the ground
Which of the following represents a rational number that is NOT an integer?
A 27 ÷ 5
B -50 ÷ 5
C -100 ÷ 50
D 10 ÷ 2
Answers
A - 27/5
An integer can be a negative number but it can't be a decimal.
Factor the following expression: 14b + 7a.
Answers
Answer:
7(a+2b)
Step-by-step explanation:
To factor an expression, you want to find the greatest common factor (GCF). I know that 7 can go into both 14 and 7, so my GCF would be 7. If I divide both 7a and 14b by 7, I get a and 2b. This means that my answer would be 7(a+2b) as that simplifies to 7a+14b. Hope that was helpful!
Answer:
2(7b + a)
Step-by-step explanation:
to factorize u should take the hcf of both number and put it outside the bracket. if u solve it u can see that 2(7b + a) also equals to 14b + 7a when u use distributive property
i hope this helps
the website is offering a discount of $7.50 on all bolga basket order.
Answers
Answer:
Okay but what is the bolga basket original price?
Answer:what is the answer
tell the number pls i have to get this answer right the orignal number what is the original number
Step-by-step explanation:
The company can’t sell the sofa after 3 weeks so they reduce the price to $320. What is thepercent decrease? show your work
Answers
Answer:
are u sure the question is completed?
If the the diagonals of A parallelogram or perpendicular but not congruent is the parallelogram a 1. rectangle 2. square 3. rhombus or 4. Parallelogram
Answers
9514 1404 393
Answer:
3. rhombus
Step-by-step explanation:
If the diagonals are perpendicular, adjacent sides are congruent. If adjacent sides of a parallelogram are congruent, it is a rhombus.
__
Diagonals are congruent in a rectangle or square, so those choices don't apply. In a general parallelogram, the diagonals may not be perpendicular.
Can someone pls help me?
Answers
Step-by-step explanation:
The purple triangle would be an equilateral triangle because all three sides are equal.
The pink triangle would be an isosceles triangle because only two sides are equal.
The box-and-whisker plot below represents some data set. What percentage of the data values are less than 80?
Answers
Answer:
25
Step-by-step explanation:
25%
delta math
6th grade math help me pleaseeee
Answers
Answer:
I think it's the top left one
Step-by-step explanation:
Answer:
the top left one
Step-by-step explanation:
Ana es una vendedora de bombones tenía 295 cajas y ha vendido 67 de ellas si cada caja contiene 24 bombones¿ cuántos bombones le quedaron sin vender?
Answers
Answer:
the number of chocolates remains unsold is 5,472
Step-by-step explanation:
The computation of the number of chocolates remains unsold is given below:
= (Total boxes - sold boxes) × number of chocolates in each box
= (295 - 67) × 24
= 228 × 24
= 5,472 chocolates
hence, the number of chocolates remains unsold is 5,472
A bullet travels at 2,550 n
m. for 3 seconds, what is the speed of that bullet?
Answers
Answer:
There are 100 cm in a meter, 2.54 cm in an inch, 12 inches in a foot, and 5280 feet in a mile.
Step-by-step explanation:
Lainey bought a set of 20 makers for $6 what is the cost of 1 marker?
Answers
Answer:
0.30
Step-by-step explanation:
$6 Total
20 markers
6/20=0.30
0.3 per maker.
Cost of 1 marker is $0.30
Eighth grade
T.3 Area and perimeter: word problems MY
you have prizes to reveals Got
Nancy has a pool in her backyard, and she wants to build a fence around the entire area,
Nancy's backyard is 10 meters wide and 15 meters long. It costs $10.00 per meter to install
a wooden fence. How much would it cost to put a wooden fence around Nancy's backyard?
Submit
Answers
Since Nancy wants a fence around her backyard, we are obviously talking about perimeter here.
10 + 10 + 15 + 15 = 50
The perimeter of her backyard is 50 meters
50 x 10 = 500
It would cost her $500
ASAP
What is the image of (-9,0) after a dilation by a scale factor of 3 centered at the origin?
Answers
Answer:
-27,0
Step-by-step explanation:
15 POINTS! RIGHT ANSWERS ONLY! PLEASE! Thank you, explanation is optional.
Each picture is in order please answer them in order
Answers
Answer:
1st: x > -1
2nd: 52 - 3p
3rd: 450
4th: x > 90
5th: 2
Can someone please help to differentiate this?
Answers
Answer:
[tex]\frac{dy}{dx} = (x+3)^{4} (7)(x-5)^{6} + (x-5)^{7} (4)(x+3)^{3}[/tex]
The values of x are x = -3 ,5 and [tex]x = \frac{-1}{11}[/tex]
Step-by-step explanation:
Step(i):-
Given that the function
y = (x+3)⁴(x-5)⁷ ...(i)
Apply UV formula
[tex]\frac{dy}{dx} = U^{l} V+ U V^{l}[/tex]
Differentiating equation (i) with respective to 'x ', we get
[tex]\frac{dy}{dx} = (x+3)^{4} (7)(x-5)^{6} + (x-5)^{7} (4)(x+3)^{3}[/tex]
Step(ii):-
Given that
[tex]\frac{dy}{dx} = 0[/tex]
[tex](x+3)^{4} (7)(x-5)^{6} + (x-5)^{7} (4)(x+3)^{3} =0[/tex]
[tex](x+3)^{3}(x-5)^{6} (7(x+3)+4(x-5))[/tex] =0
[tex](x+3)^{3}(x-5)^{6} =0 and (7(x+3)+4(x-5)) =0[/tex]
x = -3 and x=5 and 7x +21 +4x -20 =0
x = -3 and x=5 and [tex]x = \frac{-1}{11}[/tex]
Please help. Jacob sells homemade skateboard decks for a profit of $27 per deck. He is considering switching to a new type of material that will increase his profit, as expressed by the function y = 32x, where x is the number sold and y is the amount of profit. How many more dollars will Jacob earn on each skateboard deck if he switches to the new material? Explain how you found your answer.
Answers
Answer:
$5
Step-by-step explanation:
32-27 = 5
because he was earning 27 per skate board, that function shows him earning 32 per skate board which is an increase of $5.
THIS IS CONFUSINGG HELP