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3 years ago

This relation is a function: {(0,-3), (0,-2), (0,-1), (0,0), (0,1)} : True or False

Mathematics

1 answer:

Crank3 years ago

7 0

To be a function, a single value in the Domain can not map into multiple values in the Range.

the Domain is <span>{0}</span> and
the Range is <span>{3,2,1}</span>

This is not a function.

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A plane is approaching an aircraft carrier at 25° angle of elevation from 3.2 miles away how far above sea level is the plane

s2008m [1.1K]

Answer:

$Height\approx 1.35\ miles$

Step-by-step explanation:

The angle of elevation $=25\textdegree$

It is $3.2\ miles$ away from the point.

If we imagine a right triangle having an angle $25\textdegree$ .

Hypotenuse $=3.2$ , Opposite=Height from sea level $(h)$

$\sin 25=\frac{opposite}{hypotenuse}\\\\\sin 25=\frac{h}{3.2}\\\\h=3.2\times \sin 25\\\\h=3.2\times 0.4226\\\\h=1.3524\approx 1.35\ miles$

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3 years ago

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16. The weather report gives the temperature as 35 degrees Celsius. Find the

musickatia [10]

Answer:

$F=95\°$

Step-by-step explanation:

we know that

$C=\frac{5}{9}(F\°-32)$

In this problem we have

$C=35\°$

substitute the given value in the formula and solve for F

$35\°=\frac{5}{9}(F\°-32)$

$F-32=\frac{9}{5}(35)$

$F=\frac{9}{5}(35)+32$

$F=95\°$

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3 years ago

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A population of 800 spiders is decreasing at a rate of 14% each week. How many weeks will it take for the population to be half

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2 years ago

Simplify the expression 1.5y2+6.3+6y-3.9-4y+y2

Lena [83]

Answer: $2.5y^{2} +2y+2.4$

Step-by-step explanation:

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3 years ago

The population of a certain type of seahorse grew by 13% from year to year.

Gekata [30.6K]

Answer: Exponential function

Step-by-step explanation:

A linear function is the form $f(x)=mx+c$ , where m is the constant rate of change of y with respect to x and c is the y-intercept.

An exponential growth function is in the form $f(x)=A(1+r)^x$ , where r is the rate of growth (generally in percent) and A is initial value.

If the population of a certain type of seahorse grew by 13% from year to year, then the rate of growth is 13% .

Hence it is an exponential equation.

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3 years ago