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
Novosadov [1.4K]
3 years ago
6

Decide !!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Savatey [412]3 years ago
5 0

Make note of the coefficients in the first and fourth equations. They've been conveniently picked so that subtracting one equation from the other eliminates every variable but <em>t</em>. We have

(3<em>r</em> + 2<em>s</em> + <em>t</em> + 2<em>u</em> + 3<em>v</em>) - (3<em>r</em> + 2<em>s</em> + 3<em>t</em> + 2<em>u</em> + 3<em>v</em>) = 7 - 17

-2<em>t</em> = -10

<em>t</em> = 5

You might be interested in
The coordinate of a figure is (1,5). What will be the new coordinate after a dilation with a scale factor of 4/5?
maria [59]

Answer:

i am troll you shall be thou trolled

Step-by-step explanation:

8 0
3 years ago
Which methods could you use to calculate the y-coordinate of the midpoint of a vertical line segment with endpoints at (0,0) and
DedPeter [7]

Answer:

Step-by-step explanation:

c and d would be most helpful.  b would work but would be slow.  Omit a.

4 0
3 years ago
The decimal equivalent of 9/4 is a repeating decimal true or
Lady bird [3.3K]

Answer:

False

Step-by-step explanation:

The answer for 9/4 is 2.25

5 0
3 years ago
21 and 23 can best be described as -​
lisov135 [29]

Answer:

odd numbers

Step-by-step explanation:

<em>you can see that end with odd numbers 1 and three so they can best be described  as odd numbers</em>

HOPE YOU FIND IT USEFUL

8 0
3 years ago
Let X be a random variable that is equal to the number of times a 5 is rolled in three rolls of a fair 5-sided die with the inte
Svetradugi [14.3K]

Answer:

Step-by-step explanation:

Note: If you have any queries related the answer please do comment. I would be very happy to resolve all your queries.

Firstly we will make PMF

For X=0, P=(4/5)^3=64/125

For X=1, P=C(3,1)*(1/5)*(4/5)^2=3*16/125=48/125

For X=2, P=C(3,2)*(1/5)^2*(4/5)=3*4/125=12/125

For X=3, P=C(3,3)*(1/5)^3=1/125

So,

E[X^2]=1*48/125+2^2*(12/125)+3^2/125=0.84

E[X]=48/125+12/125*2+1/125*3=0.6

So,

E[X]^2=0.36

7 0
3 years ago
Other questions:
  • I'm not sure how to get the answer can you help me?
    7·1 answer
  • Which ratios are proportional to 14:21? choose all the answers that are correct
    11·1 answer
  • Please helpp with this!!
    8·1 answer
  • A box of buttons contains the same number of each type of button. It contains 220g of buttons
    6·1 answer
  • HELP PLZZ
    5·2 answers
  • Name the property : (-1/2) x [(-3/4) + 4/7] = (-1/2) x (-3/5) + (-1/2) x (4/7) ​<br><br>answer fast
    14·1 answer
  • Are any of these triangles similar explain PLEASEEE!
    15·2 answers
  • Help me solve please
    8·1 answer
  • Which table represents a linear function
    6·2 answers
  • 15 rounded to the nearest whole number
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!