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Elenna [48]
3 years ago
11

Dolbear’s law states the relationship between the rate at which snow a tree crickets chirp and the air temperature of their envi

ronment the formula is T = 50+ N - 40 over 4 where T is a temperature in degrees Fahrenheit and N is a number of chirps per minute if N = 66 find the temperature in degrees Fahrenheit. T
Mathematics
1 answer:
STatiana [176]3 years ago
8 0

Answer:

T=76

Step-by-step explanation:

If the formula is T=50+N-40 and N=66 then you just substitute 66 in for N then you have T=50+66-40 where as T=76

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How would i simply this?
Dmitry_Shevchenko [17]

Hello from MrBillDoesMath!

Answer:

1/3


Discussion:

The problem looks complicated until you realize the term n^-4 appears in both the numerator and denominator. Hence their quotient is 1. That is,


n ^(-4) / ( 3 * n^(-4)) =

(n ^(-4) / n^(-4) ) * (1/3) =

1                          * (1/3)  =

1/3


Thank you,

MrB

3 0
3 years ago
Which lines are perpendicular to the line y - 1= 1(x+2)? Check all that apply
Vesnalui [34]

Step-by-step explanation:

Given the line y-1 = 1(x+2), in order to know the line that is perpendicular to the given line, we will first find the slope of the known line.

The standard form of equation of a line is expressed as y = mx+c

m is the slope

c is the intercept

Rewrite the equation given

y-1 = 1(x+2)

y-1 = x+2

y = x+2+1

y = x+3

Comparing to the standard form, the slope m = 1.

For two lines to be perpendicular, the product of their slope must be -1 i.e mM = -1

Substitute

1(M) = -1

M = -1

For us to know the line that is perpendicular to the given line, its slope must be -1.

<em>Since none of the equation has a slope of -1, hence none of the lines are perpendicular to the line y - 1= 1(x+2).</em>

<em></em>

6 0
3 years ago
A triangle has two constant sides of length 5 feet and 7 feet. The angle between these two sides is increasing at a rate of 0.9
o-na [289]

Answer:12.74 ft^2/s

Step-by-step explanation:

Given

Two sides of triangle of sides 5 ft and 7 ft

and angle between them is increasing at a rate of 0.9 radians per second

let \thetais the angle between them thus

Area of triangle when two sides and angle between them is given

A=\frac{ab\sin C}{2}

A=\frac{5\times 7\times \sin \theta }{2}

Differentiate w.r.t time

\frac{\mathrm{d} A}{\mathrm{d} t}=\frac{35\cos theta }{2}\times \frac{\mathrm{d} \theta }{\mathrm{d} t}

at \theta =\frac{\pi }{5}

\frac{\mathrm{d} A}{\mathrm{d} t}=\frac{35\times cos(\frac{\pi }{5})}{2}\times 0.9

\frac{\mathrm{d} A}{\mathrm{d} t}=12.74 ft^2/s

4 0
3 years ago
Mattie's house consists of two stories and an attic the first floor is 8 and 5 six feet tall the second floor is 8 &amp; a half
Hitman42 [59]
This is telling you to do area and then add the two numbers you get
6 0
3 years ago
Thomas needed a loan to buy a car. He borrowed $24,000 from the bank at a rate of 8.25% simple interest for 36 months. What was
Leya [2.2K]

Answer:

5,940.00

Step-by-step explanation:

Well its was really simple your welcome

8 0
3 years ago
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