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lord [1]
3 years ago
7

Plz answer will give brainliest

Mathematics
1 answer:
Alex73 [517]3 years ago
7 0
Given quadratic equationx^2+6x+6=0
Using the usual conventions, 
a=1, b=6, c=6
Apply the quadratic formula,
x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}
substitute a,b & c with numerical values,
x=\frac{-6\pm\sqrt{6^2-4(1)(6)}}{2(1)}
simplify:
x=\frac{-6\pm\sqrt{12}}{2}
You might be interested in
Tell whether the ratios are equivalent: 3 days to 4 hours and 9 days to 12 hours. show your work.
bonufazy [111]

Answer:

yes.

Step-by-step explanation:

write these ratios as fractions to see if they are proportional

3/4

9/12 -------> this can be simplified by dividing by 3

       = 3/4

therefore yes they are equivalent

5 0
3 years ago
2x + y = 7
jolli1 [7]

Answer:

(2/3, 17/3)

Step-by-step explanation:

put x and y coordinates value in given equation to check equality. it equality holds that's the coordinates we are looking for.

here 2nd coordinate holds the equality

6 0
3 years ago
Estimate then add to find the combined length of the four highways shown in the table.is your answer resonable? Explain. Interst
Olegator [25]
To estimate, round 3102 to 3100
round 1-10 to 2500
1-70 to 2100 
1-80 to 2900
2900+2100+2500+3100=10600mi
Yes it is reasonable because you add and subtract numbers when estimating, however it is not exact
7 0
4 years ago
Which equation represents a line that passes through (2,-1/2<br>and has a slope of 3?​
erma4kov [3.2K]

Answer:

y + 0.5 = 3(x - 2)

y + 0.5 = 3x - 6

y = 3x - 6.5

Step-by-step explanation:

8 0
3 years ago
Organize your data and find the rate of change.
LuckyWell [14K]
A .E is 7 inches for the left arm
E is 8 1/2 inches for the left foot
the inputs look like the length of the arm (ie x) the outputs are the length of the foot 
<span>rate of change=<span>change in y change in x</span></span> use the data you gathered or this equation they give you  = 0.860 •  + 3.302


B. find the difference in y, then the difference in x, then divide (y over x) to get the slope
8-7/7 1/2-6 1/2 = 1/1 =1

C.you plug in any (x,y) point you used to find the slope
Solve for B
y = mx+b y = 1*x + b 7.5 = 1*8 + b b =
7.5 - 8 = -0.5
<span>y = x - 0.5</span>

Hope this helps




8 0
3 years ago
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