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MAXImum [283]
2 years ago
14

Which of the following is the solution to the quadratic equation x2−10x+21=0 ?

Mathematics
2 answers:
Annette [7]2 years ago
7 0

Step-by-step explanation:

the answer is the image above

Bess [88]2 years ago
3 0

Answer:

x=3  and x=7

Step-by-step explanation:

x2 - 10x + 21=0

a=1, B=-10, c=21

delta= b2 - 4(ac)

if delta >0 => have two answer

x1= -b - _/delta / 2a = -(-10) - _/16 / 2.1 = 3

x2= -b + _/delta /2a = -(-10) + _/16 / 2.1= 7

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Hey guys, i would appreciate it if yall could help me out :)
exis [7]

Answer:

Equation should have an equal sign

Inequality should have the inequality sign

Expression has no signs

Step-by-step explanation:

8 0
2 years ago
How many solutions would the following system of equations have​
user100 [1]

Answer: 2.

Step-by-step explanation: Both lines intersect each other 2 times.

3 0
2 years ago
Read 2 more answers
Which of the following is the graph of y = -2√x-3+2?
snow_lady [41]

I presume you meant y=-2\sqrt{x-3}+2.

The graph is shown in the attached image.

8 0
1 year ago
QUICK QUICK PLZZ! 1 MINUTE ONLY
frosja888 [35]

ur answer is 5 and -5

Hope it helps :)

4 0
3 years ago
Read 2 more answers
Please help!!!
RideAnS [48]

Answer:

B) n ≥ - 9 and n ≤ 1

Step-by-step explanation:

-3 <= n+6 <= 7

subtract 6 from all 3 sides

-3 -6 <= n+6 -6 <= 7-6

-9 <= n <= 1

5 0
3 years ago
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