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Bess [88]
3 years ago
11

Factor the following x^2/81- y^2/100

Mathematics
2 answers:
ipn [44]3 years ago
6 0
This expression is the difference of two squares.

It can be rewritten as (x/9)^2 - (y/10)^2.

The factors are     [(x/9) - (y/10)] [(x/9) + (y/10)].
WINSTONCH [101]3 years ago
5 0
The answer is (x/9+y/10)(x/9-y/10)
Steps:

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The given table and equation represent the cost for carnival rides.
lozanna [386]

Answer:

The ordered pairs that are presented are (7, 99.5) and (3, 51.5)

Step-by-step explanation:

We are given the cost function of the carnival rides as

c=15.5+12f

which is a typical linear expression of the form y=ax+b where here y=c, f=x,  a=12  and  b=15.5. To check if an ordered pair i.e. a point (x,y) , is represented by the table we can simply plug in the equivalent x value in the equation, and check if the result matches the y value.

So, lets assume that all points are given correctly and they are as follow:

A. (7, 99.5)\\B. (75.5, 5)\\C. (3, 51.5)\\D. (123.5, 9)

Now let us check each point with our function as follow:

<u>Point A</u>

(7,99.5)\\\\c=15.5+12(7)\\c=15.5+84\\c=99.5

So point A is part of the equation.

<u>Point B</u>

(75.5,5)\\c=15.5+12(75.5)\\c=15.5+906\\c=921.5

So point B is NOT part of the equation.

<u>Point C</u>

<u />(3,51.5)\\c=15.5+12(3)\\c=15.5+36\\c=51.5<u />

So point C is part of the equation.

<u>Point D</u>

<u />(123.5,9)\\c=15.5+12(123.5)\\c=15.5+1482\\c=1497.5<u />

So point D is NOT part of the equation.

8 0
4 years ago
Read 2 more answers
Find KJL (5x-2) (9x-62)
KiRa [710]

Answer:

45x^2-328x+124

Step-by-step explanation:

5 0
3 years ago
May I please have help from anyone thank you so much !m
Sauron [17]

Answer:

Hello! answer: 512 cm3

Step-by-step explanation:

8 × 8 × 8 = 512 cm3

4 0
3 years ago
The sum of the digits of a certain two-digit number is 12. When you reverse its digits youthe new number is twelve less than twi
Flura [38]

Answer:

54

Step-by-step explanation:

5 0
3 years ago
Hello, I need Help Please What is the Descending Order 219746, 612191, 194937
jolli1 [7]

Answer:

124679 111269 134788

Step-by-step explanation:

this is the answer

7 0
3 years ago
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