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3 years ago

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:

$n= 75, 582$

$n= 2300$

$n = 253$

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