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Montano1993 [528]
4 years ago
11

Factor the trinomial below x^2+7x-30

Mathematics
1 answer:
Triss [41]4 years ago
5 0

Answer:

(x + 10)(x - 7)

Step-by-step explanation:

It is 3 and 10 in some order. The difference is 7 and it is plus, so the larger number is +10 and the smaller one - 3

(x + 10)(x - 3) should be the answer

10x - 3x = 7x

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27c+17s=809.50 can anyone solve this?
coldgirl [10]
On Saturday, the total price of $809.50 is divided by 44 (27c + 17s) will result to $18.40. Then it is multiplied to 27 (for the chicken) will get $496.74. While on Sunday, the total price of $1,495.00 is divided by 80 (46c + 34s) will result to $18.69. Then it is multiplied to 46 (chicken) will get $859.63. So, for Saturday and Sunday, the total before-tax price for a chicken dinners is $1,356.37 ($496.74 + $859.63).
3 0
3 years ago
the lacrosse team is hosting a dance as a fundraiser. They sold 38 more individual tickets than couples tickets and earned a tot
elena-s [515]
X=ind tickets
y=coup. tickets                   x = 38 + y ← # of ticket equation
                                           
3x + 5y =730 ← $ of equation

 3(38+y) + 5y = 730
 114 + 3y + 5y = 730
    114 + 8y =730
   -114       = -114 →    8y =616 = y= 77  →  x= 38 +y → x=38 + 77 → x =115
                                                  (115,77)
                        15 individual tickets and 77 couple tickets

6 0
3 years ago
Consider the following table that describes the mass of a kitten as weeks go by. If you know the kitten grows by 10% each week f
RUDIKE [14]

Answer:

Week                   Mass  (gram)

(start)                    80

   1                         88  

   2                        96.8

   3                         106.48

   4                          117.128

Step-by-step explanation:

From the question we are told that

   The  mass of the kitten at the start week  is  m  =  80 g

   The rate at which the kitten grows is  r  =  0.10

Generally the mass of the kitten at the first  week is mathematically represented as  

    m_1 = ( r *  m)  + m

=>m_1 = ( 0.10 *  80 )  + 80      

=>m_1 = 88 \ g      

Generally the mass of the kitten at the second week is mathematically represented as  

     m_2 = ( r *  m_1)  + m_1

=>m_2 = ( 0.10 *  88 )  + 88      

=>m_2 = 96.8 \ g      

Generally the mass of the kitten at the third  week is mathematically represented as  

     m_3 = ( r *  m_2)  + m_2

=>m_3 = ( 0.10 *  96.8)  + 96.8      

=>m_3 = 106.48  \ g      

Generally the mass of the kitten at the fourth  week is mathematically represented as  

     m_4 = ( r *  m_3)  + m_2

=>m_4 = ( 0.10 *  106.48)  + 106.48      

=>m_4 = 117.128  \ g              

Week                   Mass  (gram)

(start)                    80

   1                        88  

    2                      96.8

    3                      106.48

   4                        117.128

 

3 0
4 years ago
Answer Fast!!! Why does 10 to the power of -2 equal 0.01<br> Please tell me quickly!!!!!!!!!!!
vazorg [7]

Step-by-step explanation:

Reason Is because 10^-2 is

1

-----

10^2

= 1/100

=0.01

8 0
3 years ago
Read 2 more answers
Please help, this is my review, and I have a test tomorrow. But based on what I did, none of my answers matched the ones below.
lukranit [14]

Answer:

  a)  21, 34.5, 54.75, 85.125

Step-by-step explanation:

All of the answer choices differ in the first term, so that is the only one you need to figure here. However, we will do them all, so you can see it done.

We note that x > 0 for all of the values of x that we need to use. That means the recursive relation is the one we're using for computation.

f(1) = 3/2·f(0) +3 = (3/2)(12) + 3 = 18 +3 = 21 . . . . . . matches choice (a)

f(2) = 3/2·f(1) +3 = (3/2)(21) +3 = 63/2 +3 = 69/2 = 34.5

f(3) = 3/2·f(2) +3 = (3/2)(34.5) +3 = 51.75 +3 = 54.75

f(4) = 3/2·f(3) +3 = (3/2)(54.75) +3 = 82.125 +3 = 85.125

__

When you're computing for sequential input values, each depends on the previous value you computed.

_____

<em>Additional comment</em>

Using an exponential regression calculator (or spreadsheet), the explicit function can be found to be ...

  f(x) = 18·1.5^x -6

6 0
2 years ago
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