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
Alexandra [31]
4 years ago
7

2. How many solutions does this system of equations have?

Mathematics
1 answer:
Orlov [11]4 years ago
3 0
Solve using the method comparison method
Then you need to cancel equal terms ---> 3x+4=3x-1  <-----
Then you get this ---> 4= -1
And if you know your math... Like me Lol That equation has no solution Because if you graph these points the lines were parallel
Also, I used Photo math a app to help with math
And my solution is correct


You might be interested in
What is 5% increase of $40,000?
LuckyWell [14K]

Answer:

New value =

40,000 + Percentage increase =

40,000 + (5% × 40,000) =

40,000 + 5% × 40,000 =

(1 + 5%) × 40,000 =

(100% + 5%) × 40,000 =

105% × 40,000 =

105 ÷ 100 × 40,000 =

105 × 40,000 ÷ 100 =

4,200,000 ÷ 100 =

so the answer would be 42,000

3 0
3 years ago
Read 2 more answers
You are in charge of erecting a radio telescope on a newly discovered planet. To minimize interference, you want to place it whe
strojnjashka [21]

Answer:

Step-by-step explanation:

\text{The equation of the surface of the sphere whose radius is 6 can be represented as:}

x^2+y^2+z^2 = 36}

So , g(x,y,z) = x^2 + y^2 + z^2 - 36

\text{To minimize the function :}  \\ \\  M(x,y,z0 = 6x - y^2 +xz + 60

\text{by applying lagrange multipliers }

\bigtriangledown M (x,y,z) = \lambda \bigtriangledown g(x,y,z)

\langle 6+zz,-2y,x \rangle = \lambda \langle 2x,2y,2z \rangle

6+z = 2\lambda x

-2y = 2 \lambda y

\text{from the second equation ;} (\lambda +1)y = 0, \text{so , it is either y =0 or }\lambda = -1

Suppose  \ \lambda = -1 ; \text{other equation becomes  x = -2z and 6+z = -2x}

\text{such that; 6+z =4z or z = 2}

\text{it implies that: x= -4 and }y = \pm \sqrt{36 - 4-16} = \pm 4

\text{Here; there exist two possible points}

\text{(-4,-4,2) and (-4,4,2)}

\text{In the scenario here y=0,} \lambda \text{ is unknown, then we remove it}

x = 2 \lambda z \\ \\ 6+z = 2 \lambda x \\ \\  6+z = 4 \lambda ^2z \\ \\  6 = (4 \lambda ^2 -1) z ---(1)

z = \dfrac{6}{4 \lambda ^2 -1}

x = \dfrac{12 \lambda }{4 \lambda ^2 -1 }

\text{recall that; it i possible to divide }4 \lambda ^2 -1 \text{since (1) shows that it cannot be equal to zero.} \\ \\ \text{hence, puttinf this into constraint, whereby y =0, Then:}

144 \lambda ^2 + 36 = 36(4\lambda ^2 -1)  \\ \\ 4\lambda ^2 (  4\lambda ^2-3) =0 \\ \\ \lambda = 0 \ or \ \lambda = \pm \dfrac{\sqrt{3}}{2}

\text{Thus; the points are:} \\ \\  (0,0,6) \ and \ (\pm 3\sqrt{3},0,3})

Now;

M(-4,-42) = 12  \\ \\ M(-4,4,2) = 28 \\ \\ M(0,0,6) = 60 \\ \\ M(3\sqrt{3},0,3) = 27\sqrt{3} + 60 \\ \\  M(-3\sqrt{3},0,3) = -27\sqrt{3} +60

\text{Hence, the minimum is 12 which occurs at (-4,-4,2)}

4 0
3 years ago
ASAP PLZ
Cloud [144]

Answer:

3/9 because theyre both equivalent to 1/3

8 0
3 years ago
Read 2 more answers
What is the least common multiple of the numbers 8 and 12? <br> A. 24 <br> B. 8 <br> C. 4 <br> D.96
Bogdan [553]
The LCM of 18 and 12 is A.24
6 0
2 years ago
Read 2 more answers
10. If log10x = 1 + a and log10y = 1 – a, show that xy = 100.<br> How?
gregori [183]

Step-by-step explanation:

log x = 1 + a

a = log x - 1

log y = 1 - a

a = 1 - log y

So

log x - 1 = 1 - log y

log x + log y = 2

log (xy) = 2

xy = 100

7 0
3 years ago
Other questions:
  • a doctor told his patient to drink 4 full ups and 4/6 of a cup of medicine over a week. If each full cup was 4 1/7 pints, how mu
    13·1 answer
  • Two investments totaling $35,000 produce an annual income of $830. One investment yields 2% per year, while the other yields 3%
    10·1 answer
  • What is the value of this expression? (11,982)^0
    5·2 answers
  • Can someone help me with 42 and 43?
    13·1 answer
  • • Kiana goes to the library. She borrows 5 books about planets
    8·1 answer
  • Solve for n.<br> 6(n-3)- 2n=10
    15·1 answer
  • In a class of 40 students, 75% returned their permission slips for the field trip. How many students returned their permission s
    7·2 answers
  • WILL GIVE BRAINLST <br><br> hAVE AN AMAZING DAY
    8·1 answer
  • Please help! Algebra hw! Hrw
    10·2 answers
  • Jane is the regional manager of Graphic DesignWorks. She uses a company
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!