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# Ordered Pairs of points (answer)

Perimeter of rectangle  = 2L + 2W = 20   then   L+ w = 10       Now have to think of all sets of 2 integers that add up to 10.      If we write numbers from 1 to 10.      1  2    3   4   5     6  7  8   9      any 2 pairs first from left hand side from the...

# word problems and turning them into algebraic equation to slove (answer)

i 240 = ( i4 ) 60 = 160 = 1          2i    =   2i      *  1 -i   =   2i + 2 =   1 +i  1 + i      1 + i      1 - i         2       NOTE :          i2 = -1      i3 =( i2 ) i = -i    i 4 = 1

# Algbrea 2 Math Could someone please help me (answer)

( -∞. -1) U (-1, +1), (1,+∞)

# (8m7c9)(3m9c7) (answer)

It seems like numbers are exponents , you should write as Superscript or use( ^ ) , m6 is written normally as 6m.          (8 m7 c 9 ) ( 3 m9c7) = 24 m16 c16  / multiplication of exponent with the same base, same base with...

# Which number is a multiple of 6? (A) 2 (B) 3 (C) 42 (D) 1 (answer)

C)     Because 42 = 6 . 7

# How do we find the greatest common factor of a polynomial? Demonstrate the process with an example, showing your work. (answer)

Greatest common factor is determine between 2 or more entities.         It is the greatest factor that both of the entities( numbers, or expressions )can be divided into those 2       numbers.           Factors are building blocks of the terms, and they are separated by multiplication...

# what is the independent variable and what does it mean? what is the dependent variable and what does it mean? (answer)

Independent variable is the variable that takes changes, and dependent variable is what follows the change of independent variable in a functional relationship.     In graph independent variable is taken to be horizontal line.       Take an example:        C = 30 + 20 h...

# What will be the diameter of the circle with seven chords 1.25 inches in length. (answer)

°  Central angle of each sector = 360/ 7 = 51.4°     Sin (51.4 ° / 2) = (1.25/ 2 )/ r      Sin( 25.7°) = 0.625 r         0. 43/ 0.625 = r           r/2 = 0.69           d = 4(0.69) = 4( 0.69) = 2.79"          This is a trigonometry problem . You...

# 7.100 x 10 to the power of 5 (answer)

7.1 * 105    Number of significant digits = 2    Precision: tenth.

# write as a single logarithm with a coefficient of 1 (answer)

Assume that 2 is the base of the Log:      log2( X -1) + log 2 ( X +1) - log 2 ( X2 -1) =         log2 ( X-1)( X+1) =  log 2 (1) = 0              X2 - 1       Using the relation ship of    Log ( AB ) = logA + log B...

# system of linear equations: Matrices (answer)

X = amount invested in Treasury bills. ( 6%)  Y = amount invested in Treasury bonds ( 7%)   Z = Corporate bounds ( 0.08)      Z = X/2     2Z + Y + Z = 10,000         Y+ 3Z = 10,000      2Z( 0.06) + ( 10,000-3Z) 0.07 + Z( 0.08)  = 680       0.12Z +700- 0.21Z...

# how much must antonio pay for his new car? (answer)

Use Algebra: Choose a variable for unknown, what is problem asking you to                         find  out      P = original price      P ( 1 - 0.14 )(1.085) * = 0.86p( 1 + 0.085)  = 0.86* 26,470 * 1.085 =...

# 3(R+-9)+9=-3 need help finding the "R" (-)= negative (answer)

3( R- 9 ) + 9= -3   R  - 9 + 3 = -1   / divide both sides by 3   R = 6 - 1 = 5     / add 6 to both sides of equation.     Be always observant , and simplify.

# A gambling boat on the Mississippi River can go 60 miles up-river in the same amount of time that it takes it to go 140 miles down-river, if the rate of curren (answer)

Sb = Speed of boat     Sc= Speed of current    (Sb +Sc ) t  = (Sb + 8 ) t = 140 Miles      distance going down the river   (  Sb - Sv ) t = ( Sb - 8 ) t = 60 miles      Distance going up the river               Sb + 8    = Sb - 8              140            60...

# How do you factor the difference of two squares? How do you factor the perfect square trinomial? (answer)

a2 - b2 = ( a + b) ( a -b)     a2 + 2ab +b2 = ( a + b)2

# How do you find absolute value without using a graph? (answer)

l Q l  =  Q   for  Q >0 l  Q I   =  - Q   for  Q <0         Example  :   Evaluate the following expression for   5 < X < 9        l  l X - 14 l - l x - 3  l  l  =       l - X +14  + X - 3 l  = l 14-3 l = l 11l = 11

# what is x + y = 3 (answer)

What answer:       Maybe graph:          X + Y = 3          X intercept :  X+0 = 3            Y intercept : 0 + y = 3          Intercepts are :    ( 0,3) , ( 3,0)                Connect them and extend will be the graph....

# Use the rational zeros theorem to find all the real zeros of the polynomial function.use the zeros to factor f over the real numbers. (answer)

f(x) =  X3 - 5X2 -61X - 55            Possible rational roots : ±1, ±5 ,±11, ±55            try : X=-1                 ( -1)3 -5 (-1)2 -61( -1) - 55 =  -1-5 + 61 -55 = 0              X= -1 is one of the solution.               X3 - 5X2 - 61 X - 55 , should...

# identify the vertex, axis of symmetry, maximum and minimum value and value of parabola. Y=X^2 +6X+7 (answer)

∞                                  Y = X2 + 6X +7         X          = -b/ 2a = -6/ 2 = -3         vertex         Y            = ( -3) 2 + 6( -3) + 7 = -2         vertex           Vertex = ( -3, -2)             Minimum value occurs at vertex =...

# find future value and interest (answer)

a)       480( 1 + 0.08/4)12 = 608. 76     b)  480( 1 + 0.08) 3 = 604.66