Which matrix multiplication is defined ?
Answer:
A. CB
Step-by-step explanation:
3 x 2 (C is a 3 by 2) matrix can be multiplied to a 2 x 2 (B is a 2 by 2) matrix since C has 2 columns that are equal to the number of rows in the second matrix B.
A way of checking if two matrices can be multiplied is to first check the number of columns the first matrix contains and then check the number of rows that the second matrix contains.
If the number of columns in the first matrix equal the number of rows in the second matrix then that means it is possible to multiply these matrices.
can someone pls help me
Answer:10 & 12
Step-by-step explanation:
Answer:
The 5th step will need 32 blocks, and the 6th step will need 64 blocks.
Step-by-step explanation:
Each step requires the blocks to be doubled. The first step has two, 2x2 is 4. There are 4 blocks in the next step. 4x2 is 8. There are 8 blocks in the next step, and so on and so forth. Just multiply by 2. Hope this helped!
Han is multiplying 10x^4 by 5x^3 and gets 5x^7. He says that 0.5x^3 is not a polynomial because 0.5 is not an integer. What is the error in Han’s thinking? Explain your reasoning.
The result of the product with [tex]5x^7[/tex], we can see that Han neglected the zero taking 50 the same as 5 which is wrong
Given the polynomial functions
r(x) = [tex]10x^4[/tex]
t(x) = [tex]5x^3[/tex]
Taking the product of both functions:
P(x) = r(x) * t(x)
P(x)= [tex]10x^4\times 5x^3[/tex]
P(x) = [tex](10\times 5) \times(x^4\times x^3) = 50x^7[/tex]
Comparing the result of the product with [tex]5x^7[/tex], we can see that Han neglected the zero taking 50 the same as 5 which is wrong.
Learn more here: https://brainly.com/question/4854699
The telephone company offers two billing plans for local calls. Plan 1 charges $36 per month for unlimited calls and Plan 2 charges $13 per month plus $0.05 per
call
a. Use an inequality to find the number of monthly calls for which Plan 1 is more economical than Plan 2
b. Explain the meaning of the answer to part a.
a. Let x represent the number of monthly calls. The answer is
(Type an inequality.)
Answer:
After 460 calls plan 1 is more economical than plan 2
Step-by-step explanation:
Plan 1: 36x + 0y
Plan 2: 13x + 0.05y
36x < 13x + 0.05y
36x - 13x < 0.05y
23x < 0.05y
23/0.05x < y
460x < y
Someone plz help me :(
Answer:
i can JUST GET ON YOUR CROME BOOK
Step-by-step explanation:
Which of these represents the conjugate of the impedance of a circuit written as 7 – i ohms?
A
–7 – i ohms
B
–7 + i ohms
C
–7i ohms
D
7 + i ohms
For the expression 7 - i ohms, the conjugate will be 7 + i ohms (the sign was changed from negative to positive)
The impedance of the circuit is written in form of a complex number.
The standard representation of a complex number is expressed as a + ib where:
a is the real part
ib is the imaginary part
The conjugate of the complex number a + ib will be a - ib. Note that the signs of the expression were changed from addition to subtraction.
Similarly for the expression 7 - i ohms, the conjugate will be 7 + iohms (the sign was chaged from negative to positive)
Learn more here: https://brainly.com/question/18392150
(6d+5)−(2−3d) find the difference
Answer:
9d+7
Step-by-step explanation:
when you subtract you 'add the opposite' so we can rewrite this subtraction problem as an addition problem as follows:
6d + 5 + 2 + 3d
combine 'like' terms to get:
9d + 7
Answer:
3d + 3
Step-by-step explanation:
can somebody please help me I’m begging I need help
Answer:
4.0%
Step-by-step explanation:
percent change = (new number - old number)/(old number) * 100
percent change = (25475 - 24500)/(24500) * 100
percent change = 3.979...%
Answer: 4.0%
maths surface solving
Answer:
144 cm²Step-by-step explanation:
6 * 8 + 10 * 4 + 8 * 4 + 6 * 4 =
48 + 40 +32 + 24 =
144 cm²
Fred's family wants to switch cell phone plans. Hot Spot Mobile is offering a one-time discount of $50 for families that use multiple phones with their service. Fred's family uses 5 phones, and the salesperson said the first month's payment, which includes the discount and the regular monthly rate for each phone, will be $62.25. What is the regular monthly rate for each phone?
Answer:
22.45
Step-by-step explanation:
ixl told me a
Answer:
$22.45 per month
Step-by-step explanation:
Fred's family will pay for cell service for 5 phones at a regular monthly rate of c dollars for each phone. They will also receive a discount of $50. The first month's payment will be $62.25. This equation represents the situation.
5c
−
50
=
62.25
monthly cost of cell service for 5 phones
one-time discount
first month's payment
Now, solve the equation for c.
5c–50
= 62.25
5c
= 112.25 Add 50 to both sides
c
= 22.45 Divide both sides by 5
The regular monthly rate for each phone is $22.45.
pleaseeeee helpppppp <333
Step-by-step explanation:
64+72+4x+20=180(Sum of angles of a triangle )156+4x=1804x=180-1564x=24X=24/4X=6Therefore The value of X is 6 degree.
Volume Of This Cylinder
Answer:
6
Step-by-step explanation:
1. The Formula for volume of a Square is V=πr2h
2. So u would plug everything in.. so v- π4²12
3. so then u get 6
Plz help. Thank youuu
Answer:
c
Step-by-step explanation:
cause
Express 0.1345345... using bar notation
Answer:
0.1345
Step-by-step explanation:
The bolded numbers are what is barred
345 is constantly repeated so that is what would be barred as that repeats for ever
Answer:
3/1345
Step-by-step explanation:
Which of the following are solutions to the equation below?
Check all that apply.
x2 + 6x + 9 = 20
A. x= 13 + 20
B. X = -2.75 +3
C. X = 2.5+ 3
D. X = -1/5 + 20
E. X = 2.5 - 3
F. x = -24/5-3
guys pls help me!!!!!!
Corresponding angles for 62⁰,
angles in a straight line equals 180⁰
180⁰-62⁰
118⁰
x equals 118⁰
Insert 3 arithmetic means between 10 and -10 (INSERT SOLUTION)
Answer:
5, 0, -5Step-by-step explanation:
Numbers in sequence are:
10, a, b, c, -10The difference between end points:
-10 - 10 = -20Common difference of 5 terms:
-20 / (5 - 1) = - 5The missing numbers are:
a = 10 - 5 = 5b = 5 - 5 = 0c = 0 - 5 = -5Need help! Solve for X on both
Evaluate the expression (-1/2)^3
Answer:
-1/8 is correct answer
please mark me brainliest
What is the answer of this : 3+5-9*6/2
Answer:
3+5-9*6/2
3+5-9*3
3+5-27
8-27
-19
Tara brought 30 books at a yard sale. She now has 220 books. Which equation can be solved to find b, the number of the books had before the yard sale?
Answer:
b=220-30
Step-by-step explanation:
Helppp I will give u 100 if you give me a good answer
Answer: it allows you to see both sets of data more clearly and compare them rather than having them on two different charts.
Step-by-step explanation:
real world examples of:
-scalene triangle
-isosceles triangle
-perpendicular lines
Answer:
-Scalene
Nacho chipsSails on sailing boats- Isosceles
Pizza sliceRoof-Perpendicular lines
Stairs/StepsThe corner on the inside of shelvesFind the area of a square with a side length of (6x-2).
Answer:
40x?
Step-by-step explanation:
The ratio of boys to girls in Mr. Hakeem's class is 64. If there are 18 boys, how many girls
are there? (1 point)
A 2
B. 10
C. 12
D. 24
How many girls
Answer: C. 12 girls
Step-by-step explanation:
hihi please solve ( will mark brainliest ❥ )
Answer:
use calculator and then solve it╮(─▽─)╭
Colin invests £1200 into his bank account. He receives 3% per year simple interest. How much will Colin have after 4 years? Give your answer to the nearest penny where appropriate.
Answer:
1440
Step-by-step explanation:
5/7 divided by 2/7. Divide
Answer:
2.5 am i right
please mark me as brainliest
Answer:
2.5 or 35/14
Step-by-step explanation:
What is the value of x
Answer:
9
Step-by-step explanation:don't use this awnser its wrong
Find the measure of the angles (S)
Please help out:/
Answer:
Step-by-step explanation:
The triangle’s angles add up to 180°
so 180 - (5x - 2) = the another one interior angle
180 - 5x + 2
182 - 5x
and then 2x + 76 + (182 - 5x) = 180
2x + 76 + 182 - 5x = 180
258 - 3x = 180
78 = 3x
x = 26
so 2x = (26)(2) = 52
5x - 2 = (5)(26) - 2 = 128
please give me a brainliest answer