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Alexus [3.1K]
3 years ago
13

For what value of a is the equation an identity? a(2x + 3) = 9x + 15 + x

Mathematics
1 answer:
saul85 [17]3 years ago
4 0
The answer to the question

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HELP! WILL GIVE BRAINLIEST!! EASY! GIVE LONG DETAILED ANSWER!
OLEGan [10]

Answer:

x² + 2x + y² + 4y = 20

(x² + 2x + 1) - 1 + (y² + 4y + 4) - 4 = 20

(x + 2)² + (y + 4)² - 5 = 20

(x + 2)² + (y + 4)² = 25

Therefore, the center is (-2, -4) and the radius is √25 = 5.

6 0
4 years ago
Please help, im confused
elixir [45]
It look like that. 
Diameter = 2 so the radius = 1/2 * diameter = 1in

Volume of the cylinder =  pi r^2 h 

where h = height of the cylinder = 9 in

so volume = pi * 1^2 * 9  =  28.27 in^2  to nearest hundredth
8 0
3 years ago
Two ratios by entering less than greater than or equal than 16 to 15, 30 to 80
Mumz [18]

Answer:

6:15>30:80

Step-by-step explanation:

The ratio;

6:15 written in the form x/1 is equivalent to 2/5 or 0.4

30:80 written in the form x/1 is equal to 3/8 or 0.375

0.4 is greater than 0.375

Therefore;

<u>6:15>30:80</u>

6 0
3 years ago
Given that f(x)=x/2+5,<br> a)find f(2)<br> b)find f^-1(x)<br> c)find f^-1(5)
Aleks04 [339]
A) 6
b) x/f
c) 5/f

Mark brainliest please


Hope this helps you
8 0
2 years ago
Work or
labwork [276]

Hi

k (a+b) = ka+kb

so :  8 (3x+4) =   8*3x +8*4  =  24x +32

6 0
3 years ago
Read 2 more answers
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