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tiny-mole [99]
3 years ago
12

heo started to solve the quadratic equation (x + 2)2 – 9 = –5. He added 9 to both sides and the resulting equation was (x + 2)2

= 4. Next, he took the square root of each side. Which was the resulting equation of that step? x + 2 = ±4 x + 2 = ±2 x + 2 = ±8 x + 2 = ±16
Mathematics
1 answer:
pshichka [43]3 years ago
6 0

Answer:

x + 2 = ±2

Step-by-step explanation:

Square root both sides

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Reduce 12/20 to lowest term
skelet666 [1.2K]

Answer:

3/5

Step-by-step explanation:

12/20

(divide both by 2)

12/2= 6

20/2=10

6/10

(divide by both by 2)

6/2= 3

10/2= 5

3/5

7 0
3 years ago
Can someone help me please.
slega [8]
6^log(216) is the answer
5 0
3 years ago
I need help, what is 9^-2+181-69? this is math
satela [25.4K]

Answer:

193

Step-by-step explanation:

9^2 = 81+181=262-69= 193

4 0
2 years ago
Which ratio is smaller 8 to 2 or 10 to 1
GalinKa [24]

Simplify the ratio 8 to 2 to be 4 to 1

Now compare 4 to 1 and 10 to 1

4 is smaller than 10 so the ratio 8 to 2 is smaller.

5 0
4 years ago
Math Help Don't Answer If Your Unsure of the answer please?<br> 2nd and 3rd pic is one question
vovangra [49]
If it si proportional
y/x=k or y=kx
if k is same throuout, then it is proportional
find their ratio
so
0/0=undefined, ignore
2/3=k
4/6=2/3=k
6/9=2/3=k
yes, proportional

y=kx
3=2k
1=2/3k
2/3 is answer



proprtional (2nd and 3rd)
graph is proprtional, first table is poroprtional
other ones are not
2nd picture is proportional, 3rd is not


(x,y), y is rise, x is run
unit rate is rise/run=15/6=5/2=2.5
unit rate is 2.5



unit rate is (1/2)/(2/5)=(1/2)(5/2)=5/4=1.25
unit rate is 1.25
7 0
3 years ago
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