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
Alex73 [517]
3 years ago
12

If the following system of equations was written as a matrix equation in the form AX=C , and matrix A was expressed in the form

Mathematics
2 answers:
cluponka [151]3 years ago
8 0
Its -5

because a=4, b=5, c=2, d=-6
BlackZzzverrR [31]3 years ago
8 0

The given system of equations are :

4x + 2y=7

5x-6y=9

a   c       we have   4     2

b     d                       5      -6.

Comparing the two matrix we have a=4,b=5,c=2,d=-6

The question is asking us to find the value of a-b+c+d

Substituting the values of a,b,c,d we have:

a-b+c+d=4+(-5)+2+(--6)

=4-5+2-6=-11.






You might be interested in
Priya is hosting a poetry club meeting this week and plans to have fruit punch and cheese for the meeting. She is preparing 8 ou
Korvikt [17]

Answer:

i) Number of people in club = 12

ii) 96 ounces of fruit punch for 12people

iii) 24 ounces of cheese for 12 people

iv) Priya's budget for poetry club meeting in dollars = $7.87

Step-by-step explanation:

We are not given the options for the equations that could represent the quantities and constraints in this situation. We can tell we are to represent the information given above.

Number of people in the club = 12

8 ounces of fruit punch per person

For 12 people = 12×8 = 96 ounces of fruit punch

2 ounces of cheese per person

For 12 people = 12×2 = 24 ounces of cheese

A package of cheese = 16 ounces

The costs for 1package = $3.99

The costs for 16 ounces of cheese = $3.99

The cost for 24 ounces of cheese = (24×3.99)/16 = 5.985

The cost for 24 ounces of cheese = $5.99

One-gallon jug of fruit punch = 128 ounces

The cost of One-gallon jug of fruit punch = $2.50

The costs of 128 ounces of fruit punch = $2.50

The costs for 96 ounces of fruit punch = (96×2.5)/128 = 1.875

The costs for 96 ounces of fruit punch = $1.88

Priya's budget for poetry club meeting in dollars = $5.99 + $1.88 = $7.87

Cost per item for x number of people:

y = x(2.5/128) + x (3.99/16)

y = x(0.0195) + x(0.2494)

Cost equation for Priya's budget:

y = 96x(2.5/128) + 24x (3.99/16)

y = 96x(0.0195) + 24x(0.2494)

Since the total number of people to attend the meeting is 12, the constraint = 0≤x≤12

6 0
3 years ago
As a rule of thumb, the sampling distribution of the sample proportion can be approximated by a normal probability distribution
Gennadij [26K]

As a rule of thumb, the sampling distribution of the sample proportion can be approximated by a normal probability distribution whenever the sample size is large.

<h3>What is the Central limit theorem?</h3>
  • The Central limit theorem says that the normal probability distribution is used to approximate the sampling distribution of the sample proportions and sample means whenever the sample size is large.
  • Approximation of the distribution occurs when the sample size is greater than or equal to 30 and n(1 - p) ≥ 5.

Thus, as a rule of thumb, the sampling distribution of the sample proportions can be approximated by a normal probability distribution when the sample size is large and each element is selected independently from the same population.

Learn more about the central limit theorem here:

brainly.com/question/13652429

#SPJ4

4 0
2 years ago
Jeff rode his bike around a bike trail that was 1/3 of a mile long. He rode around the trail 9 times. Write a fraction greater t
Lisa [10]
Well, \frac{1}{3} * 9 = 3  So he rode 3 miles, or if they want it as a fraction, it would be \frac{9}{3}
8 0
3 years ago
Read 2 more answers
A bank gives you a loan of 1,500,000 Baht to buy a house. The interest rate of the loan is 0.01% per day (Using 1 year = 365 day
Kryger [21]

Answer:

15.000 is cost so relate it with 265..hope it is help u.

6 0
2 years ago
At a hardware store a bag holds up to 1 pound of nails. Each penny nail (x) weighs 0.05 pounds and each wood nail (y) weighs 0.1
posledela
For this answer, you multiply the weight of each penny nail by x and the weight of each wood nail by y.  If the bag holds one pound of nails, you would use the inequality ≤.

.05x + 0.1y ≤ 1
7 0
3 years ago
Read 2 more answers
Other questions:
  • Does anyone know how to get the days 
    11·2 answers
  • 8 multiplied by 9.6 equals
    6·2 answers
  • What is 7/6 ÷ 4 in simplest form
    9·2 answers
  • Use the given line(s) from a random number table to select numbers to use in each problem. Select 2 contestants for a game show
    5·2 answers
  • How far can a caterpillar; traveling at 0.06m/s, move in 60 seconds?
    5·1 answer
  • ILL GIVE BRAINLIEST ASAP!!!PLEASE DONT PUT A LINK!!
    5·2 answers
  • Help me with 8 through 12 please and thank you only 4 questions
    13·2 answers
  • Enter the coordinates for this 90 degree counter clockwise rotation around the origin.
    15·1 answer
  • Write the equation which represents the following transformations
    9·1 answer
  • Which two number that round to 320 when rounded to the nearest ten
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!