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galben [10]
3 years ago
8

For (x + 4)(x + 9) to equal 0, either (x + 4) or (x + 9) must equal

Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
4 0
If (x+4)(x+9) then either x+4 = 0 or x+9 = 0

This is by the zero product property
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A tree DOUBLES in height each year until it reached its maximum height over the course of 10 years. How many years did it take f
RideAnS [48]

Answer:

9 years

the tree doubles in height

we can make a model

1 x 2 = 2

2 x 2 = 4

4 x 2 = 8

8 x 2 = 16

16 x 2 = 32

32 x 2 = 64

64 x 2 = 128

128 x 2 = 256

256 x 2 = 512

512 x 2 = 1024

Let's say 1024 is the maximum height

half the maximum height is 1024 x 0.5 = 512 so it will take 9 years because it reached 512 on the 9th year

Step-by-step explanation:

8 0
4 years ago
An experiment consists of choosing objects without regards to order. Determine the size of the sample space when you choose the
sdas [7]

Answer:

a

    n=  75, 582

b

  n=    2300

c

  n =   253

Step-by-step explanation:

     Generally the size of the sample sample space is  mathematically represented as

           n  =   \left N } \atop {}} \right.  C_r

Where   N is the total number of objects available and  r is the  number of objects to be selected

    So  for  a,  where N = 19  and r = 8  

         n  =   \left 19 } \atop {}} \right.  C_8 =  \frac{19 !}{(19 - 8 )! 8!}

                           =     \frac{19 *18 *17 *16 *15 *14 *13 *12 *11! }{11 ! \ 8!}

                           n=  75, 582

    For  b  Where  N  = 25 and  r  =  3

           n  =   \left 25 } \atop {}} \right.  C_3 =  \frac{25 !}{(19 - 3 )! 3!}

                             =     \frac{25 *24 *23 *22 !  }{22 ! \ 3!}

                             n=    2300

   For  c  Where  N  = 23 and  r  =  2

            n  =   \left 23 } \atop {}} \right.  C_2 =  \frac{23 !}{(23 - 2 )! 2!}

                              =     \frac{23 *22 *21!  }{21 ! \ 3!}

                              n =   253

4 0
4 years ago
What does v= Bh over 3 for B=36 inches squared. and h=11 inches equal.
Varvara68 [4.7K]
The answer is 132. Work below.
V=Bh/3,  =(36)(11)/3 = 396/3 =132.

3 0
4 years ago
Caroline wants to give 8 equal size packets of flower seeds to her friend . She has 1/2 pound of flower seeds . How much will ea
snow_tiger [21]
Each packet will equal to weigh a total of 

1/16 of a pound.

This is because 1/2 a pound divided by 8 packets equals to 1/16 of a pound.
4 0
4 years ago
Read 2 more answers
For 7-15, factor each expression. (if it cant be, then put CBF)(if you dont know it, please dont bother.)
Helen [10]

Answer:

-8

Step-by-step explanation:

7-7=0 remainder is 8 so minus 8 to zero -8

3 0
3 years ago
Read 2 more answers
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