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3 years ago

I have a question K^2-12k+23=0 What would the answer to this be

Mathematics

1 answer:

kirill [66]3 years ago

5 0

Answer:

the answer might be -23 I think but I would I advise to wait until another person answer this question

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Solve the inequality. <br><br>The solution is....

MAVERICK [17]

Answer:

Step-by-step explanation:

-x - 6 > 21 - 28x

27x - 6 > 21

27x > 27

x > 1

8 0

4 years ago

Can someone pls help me with these two questions????

mel-nik [20]

Answer:

Answer of Q. 20

Step-by-step explanation:

Hope this helps...☺

6 0

3 years ago

Can someone help me with these please

Savatey [412]

Answer:

the answer is cubes curve

4 0

3 years ago

Solve the equation using the quadratic formula : x^2-10x+25=18

Sever21 [200]

$x^2-10x+25=18 \\ \\x^2-10x+25-18 = 0\\ \\ x^2-10x+ 7 =0 \\ \\a=1 , b = -10 , c= 7 \\ \\ \Delta = b^{2}-4ac = (-10)^{2}-4*1*7=100-28 = 72 \\ \\\sqrt{\Delta }=\sqrt{72}= \sqrt{2*36} =\sqrt{36}*\sqrt{2} =6\sqrt{2}$

$x_{1}=\frac{-b-\sqrt{\Delta }}{2a} =\frac{10- 6\sqrt{2}}{2}=\frac{2(5-3\sqrt{2})}{2}= 5-3\sqrt{2}\\ \\x_{2}=\frac{-b+\sqrt{\Delta }}{2a} =\frac{10+ 6\sqrt{2}}{2}=\frac{2(5+3\sqrt{2})}{2}= 5+3\sqrt{2}$

$Answer : \ x= 5-3\sqrt{2} \ \ or \ \ x = 5+3\sqrt{2}$

8 0

3 years ago

Takes a word processor 20 minutes to spell check 6 pages, how long to check 27 pages

ivann1987 [24]

9514 1404 393

Answer:

90 minutes

Step-by-step explanation:

Assuming the time is proportional to the number of pages, you have ...

time/pages = 20/6 = T/27

Multiplying by 27 gives ...

T = 27(20/6) = 90

It is expected to take 90 minutes to check 27 pages.

6 0

3 years ago