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3 years ago

What is 1/64 to the second power as a negative exponent? help please!

1 answer:

7 0

8^2 = 64 since 8*8 = 64
Squaring a number is the same as multiplying it by itself.

Since 8^2 = 64, this means
1/64 = 1/(8^2) = 8^(-2)

So, 1/64 = 8^(-2)
where the exponent is negative 2

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vova2212 [387]

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3 years ago

Find the missing lengths:<br> LO=5 and OK=4, find OH and KH.

hodyreva [135]

Answer:

The length of KH is 6 units and OH is 6.3 units.

Step-by-step explanation:

Given the figure with lengths LO=5 and OK=4. we have to find the length of OH and KH.

In ΔLOH

By Pythagoras theorem

$LH^2=LO^2+OH^2\\\\LH^2=5^2+OH^2$ → (1)

In ΔKOH,

$KH^2=OH^2+OK^2\\\\KH^2=OH^2+4^2$ → (2)

In ΔKHL,

$KL^2=LH^2+KH^2$

Using eq (1) and (2), we get

$KL^2=5^2+OH^2+OH^2+4^2$

$9^2=25+2OH^2+16$

⇒ $2OH^2=81-25-16=40$

⇒ $OH=\sqrt{20}=6.324\sim6.3units.$

Put the above value in eq 2, we get

$KH^2=20+4^2=36$

⇒ KH=6 units.

8 0

3 years ago

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marin [14]

Answer:

32'cube

Step-by-step explanation:

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2 years ago

2(x-5)=10 but the pemdas is backwards

ale4655 [162]

Answer:

2 (x-5) = 10

2x-10 = 10

2x = 10 + 10

x = 20/2

x = 10

Step-by-step explanation:

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3 years ago

Which expression represents five more than one-third y?

MaRussiya [10]

Answer:

1/3 y +5

Step-by-step explanation:

five more than one-third y

1/3 y +5

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2 years ago

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