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vaieri [72.5K]
3 years ago
10

Help? Plz I need help

Mathematics
1 answer:
e-lub [12.9K]3 years ago
3 0

Remark

If you really take this question seriously, you will stop tailgating immediately. Being any less than 6 car lengths away from the car in front of you is dangerous even if you are paying attention, never mind if you are not.

Conversion

\dfrac{60 miles}{hour}*\dfrac{5280 feet}{1 mile}* \frac{1 hour}{3600 seconds}

Now just multiply all the numerators together

60 * 6280 * 1 = 316800

And then multiply all the denominators together

1 * 1 * 3600 = 3600

Divide the numerators / denominators to get 316800/3600 = 88 feet / second

If you go 88 feet in 1 second you will go 88 * 4 feet in 4 seconds which is 352 which is about the length of a football field. It is an awfully long way to be inattentive.


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I need help!!
Natasha2012 [34]

Answer:

The exact solution is

x = \frac{Ln(60)}{7*Ln(5)}

And the approximation to three decimal places is:

x = 0.363

Step-by-step explanation:

Here we have the equation:

5^{7*x} = 60\\

Now we can remember a property of the natural logarithm function:

Ln(a^n) = n*Ln(a)

Now we can apply the Ln( ) function to both sides of that equation to get:

Ln(5^{7*x}) = Ln(60)

Then we get:

7*x*Ln(5) = Ln(60)

Solving that for x we get:

x = \frac{Ln(60)}{7*Ln(5)}  = 0.363

So the exact solution is:

x = \frac{Ln(60)}{7*Ln(5)}

And the approximation to three decimal places is:

x = 0.363

7 0
3 years ago
Need help on this math problem!!!
Colt1911 [192]

Answer:

(fof^{-1})(x)=x

Step-by-step explanation:

Composition of two functions f(x) and g(x) is represented by,

(fog)(x) = f[g(x)]

If a function is,

f(x) = (-6x - 8)² [where x ≤ -\frac{8}{6}]

Another function is the inverse of f(x),

f^{-1}(x)=-\frac{\sqrt{x}+8}{6}

Now composite function of these functions will be,

(fof^{-1})(x)=f[f^{-1}(x)]

                  = [-6(\frac{\sqrt{x}+8}{6})-8]^{2}

                  = [-\sqrt{x}+8-8]^2

                  = (-\sqrt{x})^2

                  = x

Therefore, (fof^{-1})(x)=x

4 0
3 years ago
Express 34 as a pencentage
Colt1911 [192]
34 as a percent is 3400%

In order to get this number you move the decimal to places to the right:
34.0 ---> 3400.0 =
3400%
7 0
3 years ago
Read 2 more answers
Kinda confused on what the sum would be?!? HELP NOWW PLEASE
valentinak56 [21]
That is b. aka 2
thanks
4 0
3 years ago
Y intercept of 3x+5y=-30
ELEN [110]
Substitute x=0
5y=-30
y=-6 is the y intercept
4 0
2 years ago
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