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erastovalidia [21]
3 years ago
6

(9b+3)(b-7)=0 Solve this using factoring, what are the two x’s?

Mathematics
1 answer:
telo118 [61]3 years ago
5 0

Answer:

answer is down below

Step-by-step explanation:

u have ur two brackets.

(9b+3)(b-7)=0

take 1 bracket at a time

9b+3=0

solve it so:

9b+3=0

9b=-3

b= -3 / 9

<u>Ans: b=-1/3</u>

take the other bracket

b-7=0

solve it:

<u>Ans: b=+7 </u>

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I have 2 questions. Please help me with them. Thank you.
zavuch27 [327]
(x+8)^(2) + (y+9)^(2) = 169
(x+8)^(2) + (y+9)^(2) = 13^2

h = -8
k = -9
r = 13

answer
A. center (-8,-9)
radius = 13



--------------


(x-7)^2  + y^2 = 225
(x-7)^2  + y^2 = 15^2

h = 7
k = 0
r = 15

answer
B. center (7,0)
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6 0
3 years ago
The Newtown Telephone Company advertises that if you use their 10-10 service, you will always pay only 8¢ per minute, no matter
weqwewe [10]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the information above :

A) Cost equation for Newton Telephone company :

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Where x = number of minutes used

y = total cost for x minutes

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3 0
3 years ago
Given a circle with measures of (C, d, and r) and a circle with measures of (C', d', and r'), what is C if
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DanielleElmas [232]

Answer:

Step-by-step explanation:

Start with why C isn't the answer.

y = 1.8^0 . The power is zero. Anything to the zero power (anything except 0 to the 0 power) is 1. So 1.8^0 is 1 not something else. C assumes that somehow 0,1.8 turns into 1.8. It does not. The second part is also wrong but you don't need it. However here it is.

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You should be able to see that if you multiply 5.4 by 3, you don't get 9.72

C just does not work.

=======

The actual answer is A. That's exactly what the graph does. If you multiply 5.4 * 1.8 you should get 9.72. Just for completeness, I've included the graph.

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