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
lana [24]
3 years ago
5

If triangle QRS QR =8 and RS=5 which expresses all possible lengths of side QS

Mathematics
1 answer:
Ede4ka [16]3 years ago
6 0
3 < x < 13

This is because the sum of two sides must be greater than the length of the third side. 
You might be interested in
Half the sum of 8 and r​
spayn [35]
Ummm I need the full question to help...
8 0
3 years ago
(PART A PART B) PLEASE HELP!!! DUE TODAY!!!! ❤️
maxonik [38]

Answer:

the anser from what i see should be option 1

Step-by-step explanation:

The reason why i say this is because number 1 is linear which means it is just multipying but your multiplying and adding and its not option 3 because question 5 said the questions started at 1

8 0
3 years ago
What is the relationship between 10c7 and 10c3
sattari [20]

Answer:


Step-by-step explanation:


10c^3 * c^4 = 10c^7


When two numbers raised to a power are multiplied, their exponents are added

3 0
3 years ago
If 3x - 7 = 2, then x equals?
Semenov [28]

Answer:

rjogir

grggreijgojrejow

g

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
2x^3-x^2-3x=210<br> the answer is 5 but I want to know why.
mel-nik [20]

Answer:

x=5,\frac{-9+\sqrt{255}i }{4} ,\frac{-9-\sqrt{255}i }{4}

Step-by-step explanation:

1) Move all terms to one side.

2x^{3} -x^{2} -3x-210=0

2) Factor 2{x}^{3}-{x}^{2}-3x-210 using Polynomial Division.

1 -  Factor the following.

2x^{3} -x^{2} -3x-210

2 -  First, find all factors of the constant term 210.

1,2,3,4,5,6,7,10,14,15,21,30,35,42,70,105,210

3) Try each factor above using the Remainder Theorem.

Substitute 1 into x. Since the result is not 0, x-1 is not a factor..

2*1^{3} -1^{2} -3*1-210=-212

Substitute -1 into x. Since the result is not 0, x+1 is not a factor..

2(-1)^{3} -(-1)^{2} -3*-1-210=-210

Substitute 2 into x. Since the result is not 0, x-2 is not a factor..

2*2^{3} -2^{2} -3*2-210=-204

Substitute -2 into x. Since the result is not 0, x+2 is not a factor..

2{(-2)}^{3}-{(-2)}^{2}-3\times -2-210 = -224

Substitute 3 into x. Since the result is not 0, x-3 is not a factor..

2\times {3}^{3}-{3}^{2}-3\times 3-210 = -174

Substitute -3 into x. Since the result is not 0, x+3 is not a factor..

2{(-3)}^{3}-{(-3)}^{2}-3\times -3-210 = -264

Substitute 5 into x. Since the result is 0, x-5 is a factor..

2\times {5}^{3}-{5}^{2}-3\times 5-210 =0

------------------------------------------------------------------------------------------

⇒ x-5

4)  Polynomial Division: Divide 2{x}^{3}-{x}^{2}-3x-210  by x-5.

                                               2x^{2}                       9x                      42

                                      -------------------------------------------------------------------------

x-5                               |    2x^{3}                          -x^{2}                     -3x     -210

                                           2x^{3}                             -10x^{2}

                                        -----------------------------------------------------------------------

                                                                             9x^{2}                -3x       -210

                                     --------------------------------------------------------------------------

                                                                          42x                              -210

                                                                         42x                               -210

                                      -------------------------------------------------------------------------

5)  Rewrite the expression using the above.

2x^2+9x+42

(2x^2+9x+42)(x-5)=0

3) Solve for x.

x=5

4)  Use the Quadratic Formula.

1 - In general, given a{x}^{2}+bx+c=0 , there exists two solutions where:

x=\frac{-b+\sqrt{b^{2} -4ac} }{2a} ,\frac{-b-\sqrt{b^2-4ac} }{2a}

2 -  In this case, a=2,b=9 and c = 42.

x=\frac{-9+\sqrt{9^2*-4*2*42} }{2*2} ,\frac{-9-\sqrt{9^2-4*2*42} }{2*2}

3 - Simplify.

x=\frac{-9+\sqrt{255}i }{4} ,\frac{-9-\sqrt{255}i }{4}

5) Collect all solutions from the previous steps.

x=5,\frac{-9+\sqrt{255}i }{4} ,\frac{-9-\sqrt{255}i }{4}

4 0
2 years ago
Read 2 more answers
Other questions:
  • Write the equation of the line in point slope form: <br> 1. (5, -9); m = 6
    14·2 answers
  • The equation of a parabola is given. y=1/4x^2−3x+18 What are the coordinates of the focus of the parabola?
    7·1 answer
  • If u hade 1400 cookies and u separated them in 14difrent groups how many cookies would be in each group??
    13·2 answers
  • Someone please help me. Serious answers only.
    10·2 answers
  • 9-31 3 | | what is the answer<br>​
    8·1 answer
  • Please help i need it as fast as possible
    5·1 answer
  • Agree or desagree? short question'​
    10·2 answers
  • 4) There are 14 pieces of candy in a bag. Four are broken. What is the probability of reaching into
    15·1 answer
  • Use Pythagorean theorem to solve the following right triangles, put your answer in simplest radical form:
    11·1 answer
  • 8 (a) Write 0.000089 in standard form.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!