1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
anastassius [24]
2 years ago
10

Od 2 ( 2 7 1-3 1 3 1-2 6:1-6 b = d = IDONE

Mathematics
1 answer:
Lena [83]2 years ago
7 0

Answer:

a = \boxed{1},\: b=\boxed{0}\\\\c=\boxed{0},\: d=\boxed{1}

Step-by-step explanation:

  • \begin{bmatrix} 2 & 7\\\\1 & 3\end{bmatrix}\:\begin{bmatrix} -3 & 7\\\\1 & -2\end{bmatrix}=\begin{bmatrix} a & b\\\\c & d\end{bmatrix}

  • Multiply both the matrices on left side, we find:

  • \begin{bmatrix} 2(-3)+7(1) & 2(7)+7(-2)\\\\1(-3)+3(1) & 1(7)+3(-2)\end{bmatrix}=\begin{bmatrix} a & b\\\\c & d\end{bmatrix}

  • \rightarrow\begin{bmatrix} -6+7 & 14-14\\\\-3+3 & 7-6\end{bmatrix}=\begin{bmatrix} a & b\\\\c & d\end{bmatrix}

  • \rightarrow\begin{bmatrix} 1 & 0\\\\0 & 1\end{bmatrix}=\begin{bmatrix} a & b\\\\c & d\end{bmatrix}

  • Comparing the corresponding elements of both the matrices on both sides, we find:

  • a = \boxed{1},\: b=\boxed{0},\:c=\boxed{0},\: d=\boxed{1}
You might be interested in
in a coin jar, there are 45 nickles. the number of pennies and nickles together equal the number of dimes. there are 2 quarters
fredd [130]

Answer:

45 nickels

30 quarters

60 dimes

15 pennies

Step-by-step explanation:

Quarters:

45÷3=15

15×2=30

Dimes:

30×2=60

Pennies:

60-45=15

HOPE THIS HELPS!!!!!:)

3 0
3 years ago
PLEASE HELP
AnnZ [28]

Answer: 7

Step-by-step explanation:

1. multiply both sides by -6 so the -6 on the right side could cancel out and the left side would be -6:  1= a-13/-6 ==> -6=a-13

2. add both sides by 13 so -13 on the right side could cancel out and the left side would be -6+13: -6=a-13 ==> -6+13=a-13+13

3. you know -6+13 equals 7 right? so the answer is a=7

5 0
2 years ago
Read 2 more answers
100 points! Please show your work :)
Daniel [21]

Answer:

7.76 minutes

Step-by-step explanation:

The +51 is regardless (being the y intercept) so it does not affect our answer. If the employee has to drive one mile (x=1) it will take 7.76 + 51 min to get there. If they have to drive 0 miles (x=0) it will only take 51 min. This is a difference of 7.76. You really just need to take the slope (I just used this example to make it make more sense) as x is the number of miles the employee has to drive, and therefore that times 7.76 would be how much longer it would take to drive to work.

5 0
2 years ago
a national park has two options: a $50 pass for all admissions during the year, or a $4 entrance fee each time you enter. Write
frutty [35]
<span>With the variable "y" being used to represent the total cost of going to the park for a year, the first equation would read "y = 50" since it is a one-time, flat cost. The second equation would be "y = 4x", with "x" being used to represent the number of times the person visited the park during the year multiplied by the $4 cost per visit.</span>
8 0
3 years ago
Hi, I was doing a problem to review for my semester exam in geometry, and I came across a problem that didn't make sense. I know
VARVARA [1.3K]
The answer is its FG
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is 5 and 4/5 plus 1 and 1/8? Please help. Thx
    5·1 answer
  • Ricky buys a remote car. He applies a markup of 10%. Write two expressions that represent the price of the car
    5·1 answer
  • If m 1=(7x-19), and m 2=(x+5), find m 2
    10·1 answer
  • To Find the IQR in a Box Plot, you take Q1-Q3?
    15·2 answers
  • What is the best estimate of 5 1/3 x 1 4/5 x 6 7/8 x 3 2/5 ? <br> 144 <br> 180 <br> 210 <br> 336
    15·1 answer
  • there are 13 boys and 10 girls in a class. work out the total number of ways that 1 boy and 1 girl can be chosen from the class​
    8·1 answer
  • Which verb agrees with its subject Your friends or their guest __________ cooking the meal. a. have been b. were c. are d. is
    10·1 answer
  • 1. If y varies inversely as x and x = 2 when y = 8, find x when y= 5.
    13·1 answer
  • Put these numbers smallest to largest 2.6,6.2,2.06,0.26.0.62
    14·2 answers
  • 3 m<br> 6 m<br> 6 m<br> 10 m<br> Perimeter:<br> Area:
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!