The time, t, in minutes, needed for clothes hanging on a line outdoors to dry, at a specific temperature, depends on the humidity, h. the time can be approximated by the equation t=2h²+90h+30, where h is the humidity expressed as a decimal number. find the length of time required for clothing to dry if there is 20% humidity.

The time required is 48.08 minutes

Step-by-step explanation:

In order to find the time required, you have to replace the value of humidity in the given formula and solve it for t (the time)

The humidity is expressed as a decimal number in the formula, so you have to replace the 20% as a decimal. The 20% can be expressed as 20 divided by 100. Therefore:

h= 20/100=0.2

Now you have the humidity as a decimal number.

Replacing it in the formula t=2h²+90h+30

t=2(0.2)²+90(0.2)+30

Solving for t:

t=0.08 + 18 + 30 = 48.08 minutes.

first anwser choice.

step-by-step explanation:

the greater/less or equal to symbol (> or < with the line at the bottom) is a closed/filled in circle.

-5c + 2 _< _27

subtract from both sides by 2

-5c _< _ 27

divide both sides by -5

c _< _ 5.4

flip the inequality sign

c _> _5.4

the only possible answer that would match the simplified inequality is the first answer choice