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
MissTica
2 years ago
7

4(x+x+7)-2x+7-4 by substituting x=1 and x=2

Mathematics
2 answers:
9966 [12]2 years ago
8 0
4(x+x+7)-2x+7-4
Substitute x with 1
4(1+1+7)-2(1)+7-4
=4(2+7)-2+7-4
=4(9)-2+7-4
=36-2+7-4
=34+7-4
=41-7
=34

4(x+x+7)-2x+7-4
Substitute x with 2
4(2+2+7)-2(2)+7-4
=4(4+7)-4+7-4
=4(11)-4+7-4
=44-4+7-4
=40+7-4
=47-4
=43. Hope it help!
yuradex [85]2 years ago
5 0
4(x+x+7) x=1
4(1+1+7)
4+4+28 = 36

(-2x+7-4) x=2
-2(2)+7-4
-4+7-4 = -1

You might be interested in
The perimeter of a rectangle is 84 cm. If the length is 17 cm, how wide is the rectangle?
maksim [4K]

Answer:

width = 25cm

Step-by-step explanation:

perimeter = 84

length =17

A) 84 = 17(2) + 2w

B) 84 = 34 + 2w

 -34      -34

50=2w

/2     /2

25=w

4 0
2 years ago
What is (x+6)^2 and (x-3)^2
Snezhnost [94]
(x + 6)²                    (x - 3)²
(x + 6)(x + 6)           (x - 3)(x - 3)
x² + 6x + 6x + 36    x² - 3x - 3x + 9
x² + 12x + 36          x² - 6x + 9


4 0
2 years ago
June Russell, who has a checking account at Gravy Train Bank, is writing a check to Stanley Lawrence, who has a checking account
Law Incorporation [45]
Stanley Lawrence is the correct answer

4 0
3 years ago
Read 2 more answers
The heights of adult men in america are normally distributed, with a mean of 69.1 inches and standard deviation of 2.65 inches.
Nesterboy [21]
The solution for this problem is:It's given that the heights are normally distributed. 
5 feet 7 inches = (5*12 +7) inches = (60+7) inches = 67 inches. 
The z-score is (67 - 69.1)/(2.65) = -1.136. The probability is 0.127978 or 12.8%, making probability of a height over 67 inches
5 0
3 years ago
Read 2 more answers
Factor the quadratic by checking factor pairs.<br> -15x2 – 21x + 18<br> -15x2 – 218 + 19 = -3
d1i1m1o1n [39]

Answer:

-3(x + 2)(5x - 3)

Step-by-step explanation:

-15x² – 21x + 18

-3(5x² + 7x - 6)

-3[5x² + 10x - 3x - 6]

-3[5x(x + 2) - 3(x + 2)]

-3(x + 2)(5x - 3)

3 0
3 years ago
Other questions:
  • Z =-19+3.14i what are the real and imaginary parts of z
    9·1 answer
  • What’s the answers help
    13·2 answers
  • Please do not answer unless you are 100% sure it is right!!!!!
    9·1 answer
  • Leave your answer in simplest radical form
    11·2 answers
  • You have several purchases you need to make from the grocery store. from the grocery store you need to purchase 1/2 lb of cheese
    8·1 answer
  • Which is rounded to 45,000? (Round whole number)
    12·1 answer
  • By increasing speed of car by 10km/hr the time for journey of distance 72km/hr is reduced by 36mins.find original speed of car
    10·1 answer
  • PLEASE ANSWER THE QUESTION BELOW
    12·1 answer
  • Let the universal set U = {weekdays}. If T = {Tuesday, Thursday}, what is T'?
    14·1 answer
  • What is the greatest common factor of 36 and 42?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!