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Ostrovityanka [42]
3 years ago
12

Round to the nearest​

Mathematics
1 answer:
dedylja [7]3 years ago
3 0

Answer:

where is the question?

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2x squared + 9x=-5 i need to solve for x
In-s [12.5K]
2x^2+ 9x=-5 \\ \\2x^2 + 9x+5 =0 \\\\a=2, \ \ b=9 , \ \ c=5 \\\\\Delta =b^2-4ac = 9^2 -4\cdot 2\cdot 5 =  81-40=41 \\ \\x_{1}=\frac{-b-\sqrt{\Delta} }{2a}=\frac{-9-\sqrt{41}}{2\cdot 2 }=\frac{-9-\sqrt{41}}{ 4 }\\\\ x_{2}=\frac{-b+\sqrt{\Delta} }{2a}=\frac{-9+\sqrt{41}}{2\cdot 2 }=\frac{-9+\sqrt{41}}{4 }
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3 years ago
A marathon is 26.2 miles long. Which of the following is equivalent to this distance?
mezya [45]
138336 ft is also equivalent to 26.2 miles.
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3 years ago
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Solve the equation for n and show your work. -3n + 48 = 0
MrRissso [65]
-3n+48=0
-3n=-48
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7 0
3 years ago
A turtle laid 70 eggs and 9/15 hatched how many did not hatch
slavikrds [6]

Answer:

<h2><u>28 eggs did not hatch.</u></h2>

Step-by-step explanation:

<h3>1) Calculate 9/15 of 70 eggs. </h3>

\frac{9}{15}  × 70

= \frac{630}{15}

= 42

<h3>2) To calculate how many eggs <u>DID NOT</u> hatch, we should subtract 42 from 70.</h3>

70 - 42 = 28

<u>28 eggs did not hatch.</u>

<em>Hope this helps! I would really appreciate it if you would please mark me brainliest! Have a blessed day!</em>

6 0
2 years ago
6. A rectangular pyramid fits exactly on top of a rectangular prism. The prism has a length of 16 cm, a width of 6 cm, and a hei
SSSSS [86.1K]

Answer:

V = 682.66667

Step-by-step explanation:

5 0
2 years ago
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