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
xenn [34]
3 years ago
15

HELP HELP HELP I NEED ON ON THE ONE

Mathematics
1 answer:
notka56 [123]3 years ago
4 0
The ans is D
The reason is using matrix rule putting x y and z coffecients together
You might be interested in
What is the domain and range​
kogti [31]

Answer:

The domain is all the x-values, and the range is all the y-values

Step-by-step explanation:

7 0
3 years ago
The population of two different villages is modeled by the equations shown
vlada-n [284]

Answer:

Year = 1995 and population = 315

Year = 2015 and population = 715

Step-by-step explanation:

It is given that the population of two different villages is modeled by the given equations:

y=x^2-30x+540

y=20x+15

The population of both villages are same after x years after 1980 if

x^2-30x+540=20x+15

x^2-30x+540-20x-15=0

x^2-50x+525=0

Splitting the middle term, we get

x^2-15x-35x+525=0

x(x-15)-35(x-15)=0

(x-15)(x-35)=0

x=15,35

It means, after 15 or 35 years, the population will same.

For x=15, years is 1980+15=1995 and population is  

y=20(15)+15=315

For x=35, years is 1980+35=2015 and population is  

y=20(35)+15=715.

Therefore, population are equation in Year = 1995 and population = 315 or Year = 2015 and population = 715.

7 0
3 years ago
NEED HELP ASAP!!! What is the interquartile range of the data set? Enter the answer in the box. Key: 1|5 means 15 A stem-and-lea
monitta
To find the interquartile range, you will list the data that is presented in the stem and leaf plot.

Find the median of the data (30.5)

Find the median of the lower half and the median of the upper half.

Subtract these two values.

The data are <u>20</u>, 25, 30, 30, 31, 40, 41, <u>49</u>.
                            27.5                40.5
40.5-27.5 = 13

The interquartile range is 13.
3 0
3 years ago
Read 2 more answers
(9y+6)+(y+3)<br> Add.<br> Please help
Levart [38]
(9y+y) + (6+3)
The answer is 10y+9

5 0
3 years ago
Which could be the name of a plane? please help i will mark brainiest
Scorpion4ik [409]
I think it would be JK but im not really sure
8 0
3 years ago
Other questions:
  • a help desk with 8 employees takes up to 200 calls per hour. If every employee works 8 hours per day, how many phone calls can e
    12·1 answer
  • Name the rule and find the next two numbers in the pattern 10,70,490
    10·2 answers
  • What is the decomposition of 43.586 to the nearest tenth
    11·1 answer
  • Polynormual sum of (x^2+9)+(-3x^2-11x+4)
    15·1 answer
  • The perimeter of a parallelogram is 64 meters. The width of the parallelogram is 8 meters less than its length. Find the length
    5·1 answer
  • 2. The number of nickels that Christine has is
    8·1 answer
  • Engler company purchases a new delivery truck for $55000. the sales taxes are $4000. the logo of the company is painted on the s
    15·1 answer
  • Meliza has 43 toy soldiers.She lines them up in rows of 5 to fight imaginary zombies.How many of these rows can he make?
    12·2 answers
  • Please resolve this is for today
    6·1 answer
  • PLEASE ANSWER ASAP FOR BRAINESLT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!