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Alchen [17]
3 years ago
13

Solve x2+x-1=0 using the quadratic formula.

Mathematics
1 answer:
weeeeeb [17]3 years ago
6 0

Answer:

x = \frac{-1 ±\sqrt{5} }{2}

Step-by-step explanation:

Ignore the A that doesn't belong in the answer

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Divide the sum of 8 and 12 by 4
Nonamiya [84]

Answer:

12+4/8

Step-by-step explanation:

sum means add and you need to divide 8 by whatever 12 and 4 equal

12+4= 16

16/8=2

2

8 0
3 years ago
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10 out of every 65 students order pizza for lunch. There are 416 students at her school. How many students will eat pizza at her
Studentka2010 [4]

Answer:

64

Step-by-step explanation:

First, you divide 416 by 65. This gets you 6.4. But it's not 1 in 65 eating pizza, it's 10 out of 65, so then you multiply 6.4 by 10, getting 64.

3 0
3 years ago
3m - (7m+12) =2 (m-3)
viktelen [127]
Remove parentheses
3m - 7m+12 = 2 m-3

collect like terms
3m-7m-12 = 2m-6

move terms
-4m - 12 = 2m-6

collect the like terms and calculate
-4m-2m = -6+12

divide both sides by -6
-6m=6

m= -1

7 0
3 years ago
Jake wants to buy a skateboard. The one he is looking at cost $295. It is on sale for 35% off. How much will Jake save if he buy
Aleks [24]

Answer:

191.5

Step-by-step 103.5 explanation:

295 x 0.35(which is 35%) = 103.5

295 - 103.5 = 191.5

hope this helps

3 0
3 years ago
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Order from least to greatest .9, 8/9, .86
labwork [276]

Answer:

<em>least</em><em> </em><em>to</em><em> </em><em>greatest</em>

<em>.</em><em>86</em><em>,</em><em> </em><em>8</em><em>/</em><em>9</em><em>,</em><em> </em><em>.</em><em>9</em>

8 0
3 years ago
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