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liubo4ka [24]
3 years ago
9

X^2-6=2-18x solve by completing the square

Mathematics
1 answer:
AnnyKZ [126]3 years ago
6 0
X^1=-9[89],x^2=-9+[89]
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Need help fast please thanks
murzikaleks [220]

Answer:

c = 41 ft

Step-by-step explanation:

To solve this problem, we can use the pythagorean theorem, which is defined by the formula a^2+b^2=c^2. We are given both the lengths of the legs, so all we need to do is to plug them both in and solve for c:

9^2+40^2 = c^2\\c^2 = 81 + 1600\\c^2 = 1681\\c = 41

This is the first option.

8 0
3 years ago
Will give brainliest PLEASE HELP!!! :D
marshall27 [118]

Answer:

a

Step-by-step explanation:

hope this helps

;)

5 0
4 years ago
Read 2 more answers
100 PNTS AND BRAINLIST FOR CORRECT ANWSER WITH A GOOD EXPLAINATION!!
Lelechka [254]

Answer:

Expected value is -3

You should not play

Step-by-step explanation:

five are red, five are green, 10 yellow

P(red) = red/total = 5/20 = 1/4

P(green) = green/total = 5/20 = 1/4

P(yellow) = yellow/total =10/20 = 1/2

Expected value = 1/4(18) + 1/4(10) + 1/2(0) - 10 to play

                             =18/4 + 10/4 - 10

                            =28/4 -10

                             =7-10

                             = -3

You should not play

5 0
3 years ago
How many odd numbers are between 20-100?​
cestrela7 [59]

Answer:

there are forty odd numbers

Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
If you divide 6! by 4! you are evaluating P(6, 4)
Aleks [24]
When you're evaluating P(n, k), you are essentially saying there are n objects and you will need to arrange them in k spaces.

This is essentially the same as: ^{6}P_4, which follows the formula:

P(6, 4) = ^{6}P_4 = \frac{6!}{(6 - 4)!} = \frac{6!}{2!}
If you're dividing by 4!, you are evaluating P(6, 2)
8 0
3 years ago
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