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
Wewaii [24]
3 years ago
8

Find (r-s) (t-s) + (s-r) (s-t) for all numbers r, s, and t. (a) 0 (b) 2 (c) 2rt (d) 2(s-r) (t-s) (e) 2(r-s) (t-s)

Mathematics
2 answers:
NeTakaya3 years ago
5 0

Answer:

d

Step-by-step explanation:


lyudmila [28]3 years ago
3 0
Notice that the 2 expressions have 2 common terms.

(r-s) is just (s-r) times (-1)

similarly

(t-s) is just (s-t) times (-1)

this means that :

(r-s) (t-s) + (s-r) (s-t)=-(s-r)[-(s-t)]+(s-r) (s-t)

the 2 minuses in the first multiplication cancel each other so we have:

-(s-r)[-(s-t)]+(s-r) (s-t)=(s-r) (s-t)+(s-r) (s-t)=2(s-r) (s-t)

Answer:

d)<span>2(s-r) (t-s) </span>
You might be interested in
What is the approximate length of VU? What is the length of the midsegment parallel to VU?
anastassius [24]

u is at (1,-2)

V is at (-6,-6)

 using distance formula it is about 8.06 long

 so Answer is C

6 0
2 years ago
Is x greater than, less than, or equal to 94° ?
brilliants [131]

Answer:

equal

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Measure (7x+1) (2x+1)
Gemiola [76]

Smaller angle = 41°

Larger angle = 139°

Step-by-step explanation:

(7x - 1) + (2x + 1) = 180

7x + 2x - 1 + 1 = 180

9x = 180

x = 20

  • The measure of the smaller angle is

2x + 1

= 2(20) + 1

= 40 + 1

<u>= 41°</u>

  • The measure of the larger angle is

7x - 1

= 7(20) - 1

= 140 - 1

<u>= 139°</u>

4 0
2 years ago
Read 2 more answers
Use the simple interest formula to find the ending balance.
9966 [12]

Answer: 13,000

Step-by-step explanation:

I = prt

I = (.65)($4000)(5)

I = 2600(5)

I = 13,000

8 0
3 years ago
Read 2 more answers
A polynomial function has roots –5 and 1. Which of the following could represent this function? f(x) = (x + 5)(x + 1) f(x) = (x
Dimas [21]

f(x) = (x + 5)(x - 1)

using the ' factor theorem '

given x = a is the root of a polynomial then (x - a ) is a factor

here roots are x = - 5 and x = 1 hence factors are (x + 5) and (x - 1)

the polynomial is the product of the factors

f(x) = (x + 5)(x - 1)


3 0
3 years ago
Read 2 more answers
Other questions:
  • Troy puts $1300 in an account that does not earn any interest. Every month
    8·1 answer
  • Which measurement is most accurate to describe the width of a penny?
    10·1 answer
  • <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B3%7D%20" id="TexFormula1" title=" \frac{1}{3} " alt=" \frac{1}{3} " align=
    8·1 answer
  • A small business ships specialty homemade candies to anywhere in the world. Past records indicate that the weight of orders is n
    13·2 answers
  • Two arcs of a circle are congruent if and only if their associated radii are
    14·1 answer
  • 6) 9x - 7y = -4<br> 18x - 14 y = 10<br> A) (8, -1)<br> C) (-8,-8)<br> B) (-8,-1)<br> D) No solution
    13·1 answer
  • Using the information given, select the statement that can deduce the line segments to be parallel. If there are none, then sele
    6·1 answer
  • Solve 2x^2<br> + x - 4= 0.<br> x2 +<br> = 0<br> DONE
    5·1 answer
  • Big money butts how to do.​
    10·1 answer
  • PLZ HELP ME WITH THIS QUESTION!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!