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Ulleksa [173]
3 years ago
9

Simplify (y + 9)(y - 9). А у2 B у2 - 18 C y2 - 81 D у2 + 81

Mathematics
2 answers:
mestny [16]3 years ago
8 0

Answer:

Answer is y^2-81

Step-by-step explanation:

Varvara68 [4.7K]3 years ago
4 0

Answer:

C

Step-by-step explanation:

According to formula

(a+b)(a-b)=a²-b²

So

(y+9)(y-9)

=y²-(9)²

=y²-81

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For how many integer values of g is 6<3g <127
solniwko [45]

The integer values of g in 6<3g<127 is from 2 to 42.33.

Given that the inequality showing the variable g be 6<3g<127.

We are required to find the values of g.

Inequality is like an equation which shows the relationship between variables expressed in greater than,less than, greater than or equal sign, less than or equal to sign. It shows the range of the variables.

The inequality is 6<3g<127.

We have to divide both the sides by 3 because in the middle 3 is multiplied by 3.

6/3<g<127/3  

2<g<42.33

Hence the integer values of g in 6<3g<127 is from 2 to 42.33.

Learn more about inequality at brainly.com/question/11613554

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5 0
1 year ago
NEED HELP ASAP?????<br><br> who kno this
olga2289 [7]

Answer:

B

Step-by-step explanation:

8 0
3 years ago
A bike rental company charges a $5 service fee and $1 per hour. If this situation is represented as a function, what would be th
Elenna [48]
Write as a function equation: where f(x) is the same as "y"

f(x) = 5 + 1x   ------  y = 1x + 5

Use:  y = mx + b  (Where m = slope and b is y intercept)

Slope is 1 and y intercept is +5 

Remember slope is rise over run so 1 can be written as 1 / 1 and interpreted as rise 1 and run 1 both in the positive direction. 



4 0
3 years ago
Read 2 more answers
I'm confused on case 3 sea level
Ratling [72]
Try 488 or 3050 but I think it is most likely 488.
4 0
3 years ago
three student share a townhouse their electric bill for october was 3.87 less than the september bill. the total of both bills i
leva [86]

Answer: 40.27

Step-by-step explanation:

Let their September bill be x

Therefore, the October bill will be = x - 3.87.

Therefore, the addition of both bills will be:

x + (x - 3.87) = 237.75

x + x - 3.87 = 237.75

2x - 3.87 = 237.75

2x = 237.75 + 3.87

2x = 241.62

x = 241.62/2

x = 120.81

Therefore, September bill was 120.81

Since the 3 students share the bull equally, the amount owed by each will be:

= 120.81 / 3

= 40.27

Each person owes 40.27

4 0
3 years ago
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