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aksik [14]
3 years ago
15

Write x2 − 2x − 3 = 0 in the form (x − a)2 = b, where a and b are integers

Mathematics
2 answers:
slamgirl [31]3 years ago
5 0
Your answer is C 
It's hard to describe I did it all in my head but please trust me that C is correct
love history [14]3 years ago
3 0
I think its d because i already did this before
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HELP PLZZ!!???? Determine the rate at which Zayna drives for 3 hours at a rate of 44 miles per hour. Later, she drives for anoth
ludmilkaskok [199]

Answer:

C. or 54

Step-by-step explanation:

Assuming we are trying to find r then you would get 3*44 because distance=speed*time so distance is for the 3 hour time is 132 miles. To find the reaming distance you do 240-132= 108 so then we know distance/time=speed so 108/2=54 so the speed is 54 mph

7 0
4 years ago
Read 2 more answers
Evaluate the expression 9-3÷1/3+1 <br>A. 9 <br>B. 3 <br>C. 1 <br>D. 19​
ikadub [295]
PEMDAS
P- none
E- none
M- none
D- (3/1/3=1)
AS- 9-1+1=9

The answer is A.
7 0
3 years ago
45 points!
krek1111 [17]

there would be a 99% chance of a red marble being pulled out or even a 1% chance.

because of their being five green marbles and six red there is always a chance you could pull out any one of the colors.

but i believe that both of the answers are 1/2

but im not 100% sure

8 0
3 years ago
Read 2 more answers
Suppose two variables are positively correlated. Does the response variable increase or decrease as the explanatory variable inc
matrenka [14]

Answer:

Option A

Step-by-step explanation:

Positive correlation describes a relationship between two variables where both variables move in the same direction. In this case, the response variable will increase as the explanatory variable increases.

3 0
3 years ago
A supporting goods store sells 2 fishing reels and 5 fishing rods for $243. Later, they still 8 fishing reels and 6 fishing rods
Gwar [14]
To answer this, you can set up a system of equations.  Solve for one of the variables and substitute this new equation into the 2nd equation.

2x + 5y = 243 - I'll solve this one for x.
8x + 6y = 538

2x + 5y = 243
2x = 243 - 5y
2          2
x = 121.5 - 2.5y ;  substitute this in for x in the second equation

8x + 6y = 538
8 (121.5 - 2.5y) + 6y = 538
972 - 20y + 6y = 538
972 - 14y = 538
-972            -972
-14y = -434
-14       -14
y = 31

<u><em>The cost of a rod (y) is $31.  </em></u>

x = 121.5 - 2.5y
x = 121.5 - 2.5 x 31
x = 44

<em><u>The cost of a reel(x) is $44.</u></em>

5 0
4 years ago
Read 2 more answers
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