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Free_Kalibri [48]
3 years ago
8

Solve the equation for all values of x. (x + 3)(72 – 9) = 0

Mathematics
2 answers:
Alenkasestr [34]3 years ago
7 0

Answer:

x has to be -3 for the answer to be 0

Step-by-step explanation:

N76 [4]3 years ago
4 0

Answer:

x = -3

Step-by-step explanation:

(x + 3)(72 – 9) = 0

(x + 3)(63) = 0

63x + 189 = 0

63x = -189

x = -3

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How do I determine this function??
Nitella [24]

Answer:

Yes

Step-by-step explanation:


4 0
3 years ago
1.Explain how to find equivalent fractions for 9/12<br> 2.Explain how to simplify 16/24
krok68 [10]

1.   9/12   divide top and bottom by 3

     3/4

now you can multiply the top and bottom by the same number and get an equivalent fraction

3/4 * 2/2  = 6/8

3/4 * 5/5 = 15/20

these are all equivalent fractions to 9/12 = 3/4 = 6/8 = 15/20


2.  16/24  

divide the top and bottom by 8  

2/3

This is as small as it goes  (keep dividing until there is no number that will go into the top and the bottom evenly).


4 0
3 years ago
There are 180 students registered in a soccer camp. Of those registered, 35% are seventh graders. How many of the students regis
tiny-mole [99]

Answer:

63

Step-by-step explanation:

35% are of seventh grade.

total students = 180

.: 35% of 180. = 35/100 × 180 = 35 × 18 /10

= 630/10

=63

.: The number of seventh graders are 63.

5 0
3 years ago
A large company put out an advertisement in a magazine for a job
vova2212 [387]

Answer:

<em>C(19)=12 responses</em>

Step-by-step explanation:

<u>Exponential Decay Function</u>

The exponential function is frequently used to model natural growing or decaying processes, where the change is proportional to the actual quantity.

An exponential decaying function can be expressed as follows:

C(t)=C_o\cdot(1-r)^t

Where:

C(t) is the actual value of the function at time t

Co is the initial value of C at t=0

r is the decaying rate, expressed in decimal

The company puts out an advertisement for a job opening. Initially, the company got 90 responses to the advertisement. Each day, the responses declined by 10%.

This is an example where the decay model can be used to calculate the responses to the advertisement at the day t.

The initial value is Co=90, the decaying rate is r=10% = 0.10. The model is written as:

C(t)=90\cdot(1-0.1)^t

Calculating:

C(t)=90\cdot(0.9)^t

We are required to calculate the number of responses at day t=19, thus:

C(19)=90\cdot(0.9)^{19}

C(19)=12 responses

8 0
3 years ago
Which expression is a perfect cube?<br> -8^21y^8<br> -64x^64y^64<br> -125x^9y^20<br> -126x^9y^18
yanalaym [24]
Hello,
Please, see the attached file.
Thanks.

6 0
3 years ago
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