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3 years ago

Find the missing base. 64=?2

Mathematics

1 answer:

LekaFEV [45]3 years ago

5 0

9514 1404 393

Answer:

Step-by-step explanation:

Your familiarity with multiplication tables tells you ...

64 = 8·8 = 8²

The missing base is 8.

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Select all equations that have two solutions. a x^2=16 b 4x^2=0 c x^2=-16 d 3x+2=14 e x^2-1=24 f (x+8)(x-8)=0

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a )

${x}^{2} = 16$

$x = ± \: 4$

Two solutions.

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b )

$4 {x}^{2} = 0$

$x = 0$

One solution .

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c )

${x}^{2} = - 16$

$No \: \: solution.$

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d )

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e )

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f )

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2 years ago

1000 was invested at 5.5% interest, compounded annually. After sometime the amount had grown to 1550. How long was the money inv

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compound interest equation for annually compounded

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divide both sides by ln(1.055)

$\frac{ln(1.55)}{ln(1.055)}=t$

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