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balu736 [363]
3 years ago
11

Given 2x² = -8, x is ____

Mathematics
2 answers:
IrinaVladis [17]3 years ago
5 0

Answer:

2x² = -8

x² = -4

The answer is no real solutions (x ∉ R) because a perfect square cannot be negative.

scZoUnD [109]3 years ago
3 0

Answer:

No real solutions, but there are complex solutions

x=2i and x = -2i.

Step-by-step explanation:

2x² = - 8

x² = - 4

x = +/- √(-4)= +/-√[(-1)*4] = +/-[√4 *√(-1)] = +/- [2*i]

x=2i and x = -2i

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Howard bought 3/5 pounds of granola. He divided the granola evenly among 4 friends. How much granola did each friend get?
Alex17521 [72]

Answer:

(0.75) is the amount that each freind has.

Step-by-step explanation:

We see that Howard did NOT purchase not one pound of granola. Its only 60% of a pound. Therefore we'd do 60% divided by 4 and therefore get .75%. Each freind ate .75% of that granola.

6 0
3 years ago
57 divided by 592,346
dlinn [17]

Answer:

9.62 x 10⁻⁵

Step-by-step explanation:

57 / 592346 = 0.0000962275

Scientific notation: We moved the decimal 5 times to the right, and in order to put the number back in standard form, we have to move the decimal 5 times to the left. So the scientific way of saying this is 9.62 x 10⁻⁵

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3 years ago
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Answer:

The chart shows a growth of 22-24 miles per gallon.

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3 years ago
Simplify the following expression<br>6a^4c+8ac^2-4a^4c-15-10ac^2
aleksandr82 [10.1K]

Answer:

2a^4c-2ac^2-15

Step-by-step explanation:

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7 0
3 years ago
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A baseball team had 75 players show up for tryouts last year and this year had 90 players show up for tryouts. Find the percent
BigorU [14]

Answer:

20%

Step-by-step explanation:

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3 years ago
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