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
Murrr4er [49]
3 years ago
10

What is y=-x-20 and y=x+17 point of intersection

Mathematics
1 answer:
Alenkasestr [34]3 years ago
8 0

Answer:

Point\ of\ intersection\ is\ (-\frac{37}{2},-\frac{3}{2}).

Step-by-step explanation:

Point of intersection: The point which satisfies both the equations is the point of intersection

y=-x-20\\\\y=x+17\\\\add\ these\ two\ equations\\\\y+y=-x-20+x+17\\\\2y=-3\\\\y=-\frac{3}{2}\\\\y=x+17\\\\x=y-17\\\\x=-\frac{3}{2}-17\\\\x=-\frac{37}{2}\\\\Point\ of\ intersection\ is\ (-\frac{37}{2},-\frac{3}{2}).

You might be interested in
Find the midpoint of (3,8) and (-5,-1)
emmasim [6.3K]
You just average the x and y. So for x it is (3+-5)/2 = -1 and for y it is (8+-1)/2=3.5.

The midpoint is (-1,3.5). See picture for a graphical explanation.

5 0
3 years ago
Which is true about the completely simplified difference of the polynomials a3b 9a2b2 − 4ab5 and a3b − 3a2b2 ab5?.
PtichkaEL [24]

The simplified difference of the polynomials (a³b+9a²b²-4ab⁵) and (a³b-3a²b²+ab⁵) is (12a²b²-5ab⁵).

<h3>What are Like terms?</h3>

Like terms are those terms that are having the same variables, also the variables are of the same order as well.

for example, 25x and 5x are like terms; 30xy and 7xy are like terms, 9x³ and 4x² are not like terms, etc.

Let's simplify the two of the given polynomials, therefore, find the difference between the two given polynomials.

a^3b+9a^2b^2 - 4ab^5 - (a^3b - 3a^2b^2+ab^5)\\\\= a^3b+9a^2b^2 - 4ab^5 - a^3b + 3a^2b^2-ab^5\\\\\text{Bring Like terms together}\\\\=a^3b - a^3b+9a^2b^2+3a^2b^2 -4ab^5-ab^5\\\\= 12a^2b^2-5ab^5

Hence, the simplified difference of the polynomials (a³b+9a²b²-4ab⁵) and (a³b-3a²b²+ab⁵) is (12a²b²-5ab⁵).

Learn more about Like Terms:

brainly.com/question/2513478

5 0
2 years ago
What is the answer to the below questions 1.Find the sum of 72−104+5and -32+ 4-10. 2.What should be added to 32+32+3 to get 3+3?
Fantom [35]

Answer:

-65

-61

20ab - 3bc - 3ac

Step-by-step explanation:

1.) Find the sum of 72−104+5and -32+ 4-10.

72 - 104 + 5 = - 27

- 32 + 4 - 10 = - 38

Sum of (-27 and - 38) = - 27 + (-38) = - 65

2.) What should be added to 32+32+3 to get 3+3

32 + 32 + 3 = 67

3 + 3 = 6

67 + x = 6

x = 6 - 67

x = - 61

3.) Subtract the sum of 12ab –10bc –18ac and 9ab +12bc + 14ac from the sum of ab + 2bc and 3bc –ac

(12ab –10bc –18ac) + (9ab +12bc + 14ac)

12ab + 9ab - 10bc + 12bc - 18ac + 14ac

= 21ab + 2bc - 4ac

(ab + 2bc) + (3bc - ac)

ab + 2bc + 3bc - ac

ab + 5bc - ac

(21ab + 2bc - 4ac) - (ab + 5bc - ac)

21ab + 2bc - 4ac - ab - 5bc + ac

21ab - ab + 2bc - 5bc - 4ac + ac

20ab - 3bc - 3ac

6 0
3 years ago
X^{2}-7x-25=0 to the nearest tenth
shepuryov [24]

Answer:

x = 9.6

x = - 2.6

Step-by-step explanation:

x=\frac{-b±\sqrt{b^{2}-4ac } }{2a}

Ignore the before the ± it wouldn't let me type it correctly.

x² - 7x - 25 = 0

a = 1

b = - 7

c = - 25

x=\frac{-(-7)±\sqrt{-7^{2}-4((1)(-25)) } }{2(1)}

x=\frac{7±\sqrt{49-4((1)(-25)) } }{2(1)}

x=\frac{7±\sqrt{49+100 } }{2(1)}

x=\frac{7±\sqrt{149 } }{2}

x=\frac{7±12.2}{2}

Two separate equations

x=\frac{7+12.2}{2}

x=\frac{7-12.2}{2}

x=\frac{7+12.2}{2}

x=\frac{19.2}{2}

x = 9.6

x=\frac{7-12.2}{2}

x=\frac{-5.2}{2}

x = - 2.6

5 0
3 years ago
Read 2 more answers
Please help needs to be in y=Mx+b
vovangra [49]
Y = 8x + 6

have a good day!! :/)
4 0
3 years ago
Other questions:
  • Can someone plz help me with 10 a b and c
    5·1 answer
  • Help me pls!<br> Find f( - 3) × g(4), for f(x) = x^ - 3 and g(x) = x^½ .
    9·1 answer
  • GianGian is allowed to spend 45 minutes on the computer after dinner he spends his entire 45 minutes either watching videos or p
    11·1 answer
  • Why did the colonists fight the British?
    14·2 answers
  • 1) Given the area of a Football field (57,600 sqft), and the dimensions of a
    8·1 answer
  • Which operation should be performed first according to the order of operations - 6+2(9-4)-3 ×5​
    9·1 answer
  • WILL REWARD What is the equation of the line in point-slope form?
    14·1 answer
  • Help ASAP!!!!!!!! this is the only class that im doing bad in
    13·2 answers
  • Can someone help me pls
    9·2 answers
  • Given that SQ⎯⎯⎯⎯⎯ bisects ∠PSR and PS⎯⎯⎯⎯⎯≅SR⎯⎯⎯⎯⎯, which of the following triangle congruence statements can be used to prove
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!