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Zielflug [23.3K]

3 years ago

15

A constuction crew is extending a highway sound barrier that is 13 miles long. That crew builds 1/2 of a mile per week. Write an

equation that represents the length y (in miles) of the sound barrier after x weeks.

1 answer:

dusya [7]3 years ago

8 0

The equation is y = 1/2 x + 13, where x is the number of days, and y is the length of the barrier

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Evaluate the formula of A=lw, for l=10.8 cm and w=2.5 cm

Setler [38]

Answer:

A = 27 cm²

Step-by-step explanation:

$A = lw\\Where, l=10.8 cm , w = 2.5 cm\\$

Putting in the above formula

A = (10.8)(2.5)

A = 27 cm²

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answer
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2 years ago

Read 2 more answers

2.What is the solution of the solution of the equation 5^3x=15? Round to the nearest ten thousandth.

sveta [45]

Hmm
remember
$a^c=b$ can translate to $log_a(b)=c$
so

$5^{3x}=15$ can translate to $log_5(15)=3x$
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$log_5(15^{1/3})=x$
use calculator, if you can't use change of base formula to do it
$log_a(b)= \frac{log_c(b)}{log_c(a)}$ so
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evaluate using base 10 on your calculator
0.560869=x

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3 years ago