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uysha [10]
3 years ago
10

Help me please asapppppp please I need it​

Mathematics
1 answer:
nydimaria [60]3 years ago
7 0

Answer:

it would be 45 i think

Step-by-step explanation:

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<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%20%7B%7D%5E%7B2%7D%20-%204%20%7D%7B%20%5Csqrt%7Bx%20%7B%7D%5E%7B2%7D%20-%206x%2
Nimfa-mama [501]

First of all, we can observe that

x^2-6x+9 = (x-3)^2

So the expression becomes

\dfrac{x^2-4}{\sqrt{(x-3)^2}} = \dfrac{x^2-4}{|x-3|}

This means that the expression is defined for every x\neq 3

Now, since the denominator is always positive (when it exists), the fraction can only be positive if the denominator is also positive: we must ask

x^2-4 \geq 0 \iff x\leq -2 \lor x\geq 2

Since we can't accept 3 as an answer, the actual solution set is

(-\infty,-2] \cup [2,3) \cup (3,\infty)

7 0
3 years ago
A. 86<br> B. 111<br> C. 69<br> D. 71
dangina [55]
All the angles of a triangle add up to 180 degrees. 

30+39+<4= 180

69+<4= 180

Subtract 69 on both sides. 

<4= 111 degrees

<1 and <4 are supplementary and adjacent. They equal 180 degrees as well.

111+<1= 180

<1= 69 degrees

I hope this helps!
<em>~kaikers</em>
8 0
4 years ago
Read 2 more answers
Please help. Find the area of the shaded polygons
ololo11 [35]

Answer:

A) yellow = 4.5

B) pink = 8

C) orange =9

Step-by-step explanation:

A) yellow = 12-2-1-4.5=4.5

B) pink = 7 whole plus 2 half equals 8

C) orange = 16-1-1.5-1.5-3=9

5 0
3 years ago
Help me please I need this in by tomorrow
galina1969 [7]

Answer:

BDA=29°, BCD=72°

4 0
4 years ago
The amount of money raised at a charity
DochEvi [55]

9514 1404 393

Answer:

  $1200

Step-by-step explanation:

60 attendees is 12 times 5 attendees, so we expect the amount raised to be 12 times $100.

$1200 will be raised for 60 attendees.

8 0
3 years ago
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