To determine the coordinate matrix of a relative to the basis b, we need to express a as a linear combination of the basis vectors in b.
That is, we need to solve the system of linear equations:
a = x(1,2) + y(-1,-1)
Rewriting this equation in terms of the individual components, we have:
0 1 -1 2 = x - y
2x - y
This gives us the system of equations:
x - y = 0
2x - y = 1
-x - y = -1
2x + y = 2
Solving this system, we get x = 1/3 and y = 1/3. Therefore, the coordinate matrix of a relative to the basis b is:
[1/3, 1/3]
To determine the coordinate matrix of a relative to the basis b', we repeat the same process. We need to express a as a linear combination of the basis vectors in b':
a = x(-4,1) + y(0,2)
Rewriting this equation in terms of the individual components, we have:
0 1 -1 2 = -4x + 0y
x + 2y
This gives us the system of equations:
-4x = 0
x + 2y = 1
-x = -1
2x + y = 2
Solving this system, we get x = 0 and y = 1/2. Therefore, the coordinate matrix of a relative to the basis b' is:
[0, 1/2]
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b-3/15=1 What does b equal??
Answer:
1 3/15
Step-by-step explanation:
All you have to do is add 3/15 to both sides of the equation:
b - 3/15 = 1
b = 1 3/15
What is the slope of the line that passes through the points (−6,−4) and (-12, -4) ?
Answer:
0
Step-by-step explanation:
The formula for slope is [ y2-y1/x2-x1 ].
-4-(-4)/-12-(-6)
0/-6
Since the numerator is 0, the slope is 0.
Best of Luck!
PLS HELP!!
Solve for an angle in right triangles
B = ???
round your answer to the nearest hundredth
Answer:
100
Step-by-step explanation:
angle (the question mark), (Write the
number only)
?
77
124°
47. my answer needs to be at least 20 characters long there u go
Answer:
49
Step-by-step explanation:
77+49 = 124
Write the expression in expanded form (1 + 3b)(6)
Answer:
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Identity:
An identity is an equality which is true for all values of a variable in the equality.
(a + b)³ = a³+ b³+ 3ab(a + b)
In an identity the right hand side expression is called expanded form of the left hand side expression.
---------------------------------------------------------------------------------------------------
Solution:
(i) (2x + 1)³
Using identity
(a + b)³ = a³+ b³+ 3ab(a + b)
(2x + 1)³
= (2x)³ + 1³ + (3×2x×1)(2x + 1)
= 8x³+ 1 + 6x(2x + 1)
= 8x³ + 1 + 12x² + 6x
(ii) (2a – 3b)³
Using identity,
(a – b)³ = a³–b³ – 3ab(a – b)
(2a – 3b)³ = (2a)³– (3b)³ – (3×2a×3b)(2a – 3b)
=8a³–27b³–18ab(2a –3b)
= 8a³–27b³–36a²b + 54ab²
(iii) [3x/2 + 1]³
Using identity,
(a + b)³ = a³+ b³+ 3ab(a + b)
[3x/2 +1]³
=(3x/2)³+1³+ (3×(3x/2)×1)(3x/2+ 1)
=27x³/8+1+9/2x×(3x/2+1)
= 27x³/8 + 1 + 27/4 x² + 9/2x
= (27/8)x³ + (27/4) x² + 9/2 x + 1
(iv) [x–2/3 y]³
Using identity,
(a - b)³=a³-b³-3ab(a-b)
(X+ 2/3y)³
= (x)³–(2/3 y)³– (3×x×2/3 y)(x – 2/3 y)
= x³– 8y³/27–2xy(x – 2/3 y)
= x³– (8/27)y³–2x²y+ 4/3xy²
=========================================================
Hope this will help you....
Step-by-step explanation:
Hello! It would help a lot if I had assistance with this question:
Answer:
Simplest form
16/5 where is that on the number line?
HELP AND WILL GIVE BRAINLIEST!!! Solve for x for the image below
Answer:
umm x=30
Step-by-step explanation:
Answer:
x=22
Step-by-step explanation:
All angles in a triangle add up to 180 degree.
180-(6x-7) = the supplementary angle inside the upper left corner.
180-(6x-7)+2x+(103-x) = 180
180-6x+7+2x+103-x = 180
reduce
-5x = -110
-5x/-5 = -110/-5
x=22
you can check by using the values of x
hii please help i’ll give brainliest if you give a correct answer!
Answer:
8 and 1/4 cups sugar is your answer. In 5 and 1/3 cups is 8 and 1/4 cups sugar.
Step-by-step explanation:
Brainly please hope this is correct please tell me if I wrong.
Sam complete 3 math problems in 8 minutes. How long will it take to do 15 problems?
Answer:
40 minutes
Step-by-step explanation:
Math Problems 3 15
---------------------- ----- = ------
Minutes 8 x
3x = 15 * 8
x = 15 * 8 / 3
x = 120 / 3
x = 40
40 Minutes
At a sale, coats were sold for 82% of their original price. If the coats originally cost $200 each, how much did a coat cost on sale?
164
Step-by-step explanation:
The solution is, a coat cost on sale = $164.
What is percentage?A percentage is a number or ratio that can be expressed as a fraction of 100. A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%", although the abbreviations "pct.", "pct" and sometimes "pc" are also used. A percentage is a dimensionless number; it has no unit of measurement.
here, we have,
At a sale, coats were sold for 82% of their original price.
If the coats originally cost $200 each,
so, a coat cost on sale = $200* 82%
=$164
Hence, The solution is, a coat cost on sale = $164.
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please answer correctly and quickly
Answer:
#6:10
Step-by-step explanation:
Answer:
#9 is x=14
#7 is C 138
#6 is x=10
#5 is p=40
what is the square root of 4.84
Answer:
2.2. Hope it helps :D
Based on the side lengths alone, could the triangles be similar? 16.0 cm R 6.4 cm 3.0 cm 15.0 cm S T 6.0 cm X 7.5 cm U
No, the side are not proportional.
Yes, the sides are in the ratio 2:5.
yes, the sides are in the ratio 4:5.
Yes, the sides are in the ratio 1:5.
Answer:
Yes, the sides are in the ration 2:5!
Step-by-step explanation:
Hope this helps.
Answer:
The correct answer is B. Yes, the sides are in the ratio 2:5.
Step-by-step explanation:
Hope this helps, and have a wonderful day! :)
Can someone help me please. I have to show my work.
Answer:
Step-by-step explanation:
1. P = (width + lengh) * 2 = (23 + 10) * 2 = 33 * 2 = 66
A = width * lengh = 23 * 10 = 230
2. width = 7
P = (width + lengh) * 2 = ( 7 + 9) * 2 = 16 * 2 = 32
Answer:
4. area= 230cm^2 perimeter= 66cm
5. width= 7m perimeter= 32m
Step-by-step explanation:
4. a = w*l
23cm*10cm=230cm^2
p= add all sides
23cm+23cm+10cm+10cm=66cm
5. w= a/l
63m^2/9m=7m
p= add all sides
7m+7m+9m+9m=32m
Find an equation for line L, M, N, and P *
A right circular cylinder is 3m high and the circumference of its base is 22m. Find its curved surface area.
Answer:
height of cylinder =3m
circumference =22m
curved surface area=2×pi×radius×height
curved surface area =22m×3m
curved surface area =66m²
14. A right cone has a height of 14 in and a base diameter of 17 in.
a Sketch and label a diagram of the cone
b. Determine the area of the lateral surface of the cone, to the nearest square inch
Given:
The height of a right cone = 14 in
Base diameter = 17 in
To find:
The diagram of the cone and its lateral surface area.
Solution:
(a)
The diagram of a right cone with height 14 in and base diameter of 17 in is shown below.
Diagram is not to scale.
(b)
We know that lateral surface of the cone is
[tex]A=\pi rl[/tex]
[tex]A=\pi r\sqrt{r^2+h^2}[/tex] ...(i)
Where, r is the base radius, h is vertical height and l is the slant height of the cone.
Base radius of the cone = [tex]\dfrac{\text{Base diameter}}{2}[/tex]
[tex]r=\dfrac{17}{2}[/tex]
[tex]r=8.5[/tex]
Now,
Putting r=8.5, h=14 and π=3.14 in (i), we get
[tex]A=(3.14)(8.5)\sqrt{(8.5)^2+(14)^2}[/tex]
[tex]A=26.69\sqrt{72.25+196}[/tex]
[tex]A=26.69\sqrt{268.25}[/tex]
[tex]A=437.1379[/tex]
[tex]A\approx 437[/tex]
Therefore, the lateral surface area of the cone is 437 sq. inches.
Given the sequence 24, 12, 6, 3......., where x = 1, 2, 3, 4, .........What is the first term? 24 12 6 3
Answer:
24
Step-by-step explanation:
The first term of any sequence is the term of the sequence that comes first.
Given the sequence of numbers 24, 12, 6, 3...
We can see that the number that comes first is 24. Hence the first term of the given sequence will be 24
At the zoo, the ratio of birds to snakes is 2:3. If there
are 12 snakes at the zoo, how many birds are there?
Show your work! Type your final answer in the box
below.
Submit
Answer:
8 birds
Step-by-step explanation:
Birds to snakes is 2:3. So, then it would be 4:6, 6:9, 8:12 if you use a table.
Answer:
U need to slove the same way as shown above just change the number and solve if still u find any difficulty. then u can follow me I will surely help u out
All The Best
5/16 + 7/16 (simpfiy it )
How many solutions does this equation have?
4v = 6v − 2v
no solution
one solution
Infinitely many solutions
Answer:
Infinitely many solutions.
Step-by-step explanation:
4v=6v-2v Combine like terms.
4v=4v These are already equal without diving, so there are infinitely many solutions.
Hope this helps and have a nice day ❤
Answer:
Infinitely many solutions
Step-by-step explanation:
4v=6v-2v
4v=4v
when two expressions on opposite sides of an equals sign are equivalent, that means there are infinitely many solutions
P.S. Please mark me Brainliest if it is correct.
Use | = PRT to solve.
(time is in years)
P = $1,200
I = $99
T= .75 years
Find R.
Can someone help? :)
Answer:
Step-by-step explanation:
PRT = I
R = I/PT
R = 99/(1200)(.75)
R = 99/900
R = 11%
Hi,
So the answer is 11%
Triangle B C D is shrunk to form triangle B prime C prime D prime.
Identify the type of transformation that maps triangle BCD onto triangle B’C’D’.
The transformation is a
Answer:
dilation.
Step-by-step explanation:
Answer:
dilation
Step-by-step explanation:
Two balls are picked in succession without replacement -4 white balls and 5 green balls let Y be the random representing the number of green balls. Find the value of the random variable Y.
Answer:
If Y represents the number of green balls then it can have values from 0- 5
that is it can have all the value 0,1,2,3,4 and 5.
The probability of getting both balss green without replacement is 0.27778
Step-by-step explanation:
If the balls are not replaced then this is the dependent event .
The probability of getting the first ball is given be = 5/9
where 5 is the number of green balls and 9 is the total number of balls.
The probability of getting the second ball green given that first is also green is = 5/9* 4/8= 20/72= 0.2778
If Y represents the number of green balls then it can have values from 0- 5
that is it can have all the value 0,1,2,3,4 and 5.
0 means there can be no green balls or white balls.
1 means there can be one green ball.
2 means there can be 2 green balls and so on.
In this exercise we have to use the knowledge of probability to calculate the chance of an event to occur, so you have to:
the chance of the event is 0.2778%
So organizing the information given in the statement is:
If the balls are not replaced then this is the dependent event .The probability of getting the first ball is given be = 5/95 is the number of green balls and 9 is the total number of balls.So with this information we can write that:
[tex]5/9* 4/8= 20/72= 0.2778[/tex]
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The price of an item has been reduced by 95% the original price was 87$
Answer:
Your answer
Price after reducing is 4.35$
Mark it as Brainlist. Follow me for more answer.
Step-by-step explanation:
[tex]\frac{5}{6}x - 8=\frac{1}{3}(3x-15)[/tex]
Answer:
x= -18
Step-by-step explanation:
Solve for
x
by simplifying both sides of the equation, then isolating the variable.
!BRAINLIST! please help me with this QUICK!
Answer:
Corresponding
Co-interior
None
Alternate exterior
Alternate interior
Corresponding
Но
How much does each bead necklace cost?
You can buy a 35-pound box of beads for $43.95.
A 35-pound box of beads contains 30 bags of 12
necklaces each.
Step 1: How many necklaces are in a box?
B, the correct answer is B
if 6n = 0, what does n equal?
Answer:
6n=0
n=0/6
n=0
hope it helps.
Answer:
n=0
Step-by-step explanation:
6n is the same of 6×n
∴ 6×0 = 0