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3 years ago

please give me the steps to solve this, will mark brainlyest if leads to correct answer

Mathematics

1 answer:

ZanzabumX [31]3 years ago

3 0

Answer: The car will skid 200 miles

Step-by-step explanation:

The formula S= 7/2√2D

can be used to approximate the speed S, in miles per hour, of a car that has left skid marks of length D, in feet. To determine how far a car will skid at 70 mph, we will substitute 70 mph for S in the formula. It becomes

70 = 7/2√2D

We will take squares of both sides. This is to simplify the square root on the right had side of the equation. It becomes

70^2 = 7^2/2^2(√2D)^2

4900 = 49/4 × 2D

4900 = 49D/2

Cross multiplying,

49D = 2 × 4900 = 9800

D = 9800/49 = 200

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daser333 [38]

Answer: $log(x)^{7y}+log(b)^{6x}=log(x^{7y}b^{6x}).$

Step-by-step explanation:

Given logarithm expression

$7log(x)^y + 6 log(b)^x.$

We need to write it as a single logarithm expression.

First we need to apply exponent rule of logs to remove 7 and 6 in front of logs.

$n log(p) = log(p)^n$

$7log(x)^y + 6 log(b)^x.= log(x)^{7y}+log(b)^{6x}$ .

Now, we need to apply product rule of logs $log(p)+log(q) = log(pq)$ .

$log(x)^{7y}+log(b)^{6x}=log(x^{7y}b^{6x}).$

Therefore, final answer is $log(x)^{7y}+log(b)^{6x}=log(x^{7y}b^{6x}).$

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4 years ago

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earnstyle [38]

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Step-by-step explanation:

I hope that helped.

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3 years ago

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mr_godi [17]

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4 years ago

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3 years ago

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Harman [31]

Answer:

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Step-by-step explanation:

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2 years ago

**please give me the steps to solve this, will mark brainlyest if leads to correct answer**

please give me the steps to solve this, will mark brainlyest if leads to correct answer