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Blizzard [7]
3 years ago
12

Determine the solution for x^2+2x+8

Mathematics
1 answer:
irakobra [83]3 years ago
6 0

Answer:

x=-1-i\sqrt{7}, -1+i\sqrt{7}

Step-by-step explanation:

x=\frac{-b+\sqrt{b^2-4ac} }{2a}

x=\frac{-b-\sqrt{b^2-4ac} }{2a}

Here a=1, b=2 and c=8

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kristen brought 2 candy bars for 1.29 each and a soda for 1.99 .she had to pay 0.38 in tax how much was her bill
Nadusha1986 [10]
The bill was $4.95 for the things they bought.
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4 years ago
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Aiden buys two bags of chips at $1.09 each and a 20 ounce soda for $1.20 at the gas station.He knows that the state tax is 5.5.
Natalka [10]
Aiden will receive $1.43 from a $5 bill.

If the state tax is 5.5%, you can use the equation below to solve for the total cost, <em>t</em>.

<em>t</em> = 1.055 (2 × 1.09 + 1.20)
<em>t</em> = 1.055 (2.18 + 1.20)
<em /><em>t </em>= 1.055 (3.38)
<em>t </em>= 3.5659

You can round 3.5659 to $3.57. Finally, you subtract 3.57 from 5 to find the amount of change Aiden will receive, <em>c</em><em />.

<em>c </em>= 5 - 3.57
<em>c </em>= 1.43


7 0
3 years ago
george wanted to measure the angle of a waterslide at the lake .he used a sheet of folded paper that formed 20 degree angle. he
evablogger [386]

Answer:

It's not clear on what it means but the information given it would just be 20*3=60

Step-by-step explanation:

4 0
3 years ago
In the given right triangle, find the missing length to the nearest tenth.
Jlenok [28]

Answer:

D. 25 ft.

Step-by-step explanation:

To find the missing length of any right triangle, you can use the Pythagorean Theorem (A^2+B^2=C^2) to solve. A and B represent the legs (which we do have) and C represents the hypotenuse (which we are trying to find). Insert our known values into the theorem, and we will get 24^2+7^2=C^2. Now we just do the basic math for the numbers that we have (24^2 is 576<em>;</em><em> </em>7^2 is 49), and that added up would equal to 625. Now, since C is being squared on the other side, we now have to root both sides. On the side where C is, the radical and the square will cancel out each other, leaving us with just C. But, on the side where 625 is, it should root to 25. Since C is by itself now, the number on the other side (25) will be our answer. Therefore, the missing side is 25 feet long.

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3 years ago
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Hey guys! I need help with this question.
SSSSS [86.1K]

(a - 8)

liczę na naj

6 0
3 years ago
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