3 years ago

Usain Bolt ran 100 meters in 9.63 seconds in the 2012 Olympics.

Mathematics

1 answer:

Novay_Z [31]3 years ago

4 0

He ran 1 meter in about .10 seconds

Hope this helps!

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Does anyone know how to work this out?

frozen [14]

Step-by-step explanation:

conditions : x≠0 and x≠-a and b≠1

1/(x+a) = b/x ⇌ 1×x = b(x+a) ⇌ x = bx + ba ⇌ (1-b)x = ab ⇌ x = ab/(1-b)

5 0

3 years ago

Read 2 more answers

Approximate, in feet, the circumference of a circle with radius = 6 ft. (Round your answer to one decimal place.)

Viktor [21]

Answer:

37.7

Step-by-step explanation:

Circumference of circle =2pir

I took pi=3.14

C=2xpix6=37.7square ft

8 0

2 years ago

X 81** *34*=246 <img src="https://tex.z-dn.net/?f=81x%20%2B%201%20%2B%203%7B4x%20%7D%20%3D%20246" id="TexFormula1" title="

anzhelika [568]

Answer:

$x=\frac{1}{4}$

Step-by-step explanation:

$81^{x+1}+3^{4x}=246$

$81=3^4$

Rewrite equation: $3^{4\left(x+1\right)}+3^{4x}=246$

$3^{4\left(x+1\right)}=3^{4x}\times 3^4$

$3^{4x}\times 3^4+3^{4x}=246$

Factor out $3^{4x}$ :

$3^{4x}\left(3^4+1\right)=246$

Divide both sides by $(3^4+1)$ :

$\frac{3^{4x}\left(3^4+1\right)}{3^4+1}=\frac{246}{3^4+1}$

$3^{4x}=\frac{246}{3^4+1}$

$3^{4x}=\frac{246}{82}$

$3^{4x}=3$

Anything to the power of 1 is itself. Hence,

$4x=1\\$

$x=\frac{1}{4}$

3 0

3 years ago

Which expression is equivalent to > 7^8/7 7^9 7^8 7^7 1/7^8

tankabanditka [31]

Answer:

none of the above the 7^8/8 is equivalent to

5 0

2 years ago

Does anyone know this answer??

Tanzania [10]

Answer:

Step-by-step explanation:

x²+9-__=(x-3)²

lets dissosiate this one (x-3)²

(x-3)²=(x-3)(x-3)

=x²-3x-3x+9

=x²-6x+9 so x²+9-6x

so the answer is 6x

6 0

1 year ago