The weather forecast states that the temperature will be lower than –5°F tonight. Let t represent the temperature in degrees Fahrenheit. Which inequality models this situation?a. t < –5 and t may be a negative number
b. t < –5 and t must be a positive number
c. t > –5 and t may be a negative number
d. t > –5 and t must be a positive number

Answers

Answer 1

Answer: I think it is a because it says the temperature is less than -5 degrees Fahrenheit
so you know the sign will have to be t<-5 degrees Fahrenheit now you are left with is t a positive or negative number a positive number would automatically be greater than -5 degrees Fahrenheit so there is no way it can be a positive number thus leaving you with one option.

Answer: a

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What is -7nx+2nx+2n+7x equal to

Answers

-7nx + 2nx + 2n + 7x ...combine like terms
-5nx + 2n + 7x

5nx+2n+7x which is combined like terms all you do is cut the problem down.

What is 3/8 plus 5/16

Answers

3/8 + 5/16 = (3/8)*(2/2) + 5/16
= (3*2)/(8*2) + 5/16
= 6/16 + 5/16
= (6+5)/16
= 11/16

An online media service offers video and music downloads. Each download of a song costs $1. Each download of a video costs 5 times as much as the song download. You have a credit of $70. How many songs can you purchase after buying 12 videos?

Answers

Answer:

6.3

Step-by-step explanation:

You want to add 1, 5, and 70 up. Then you would get 76. Next you want to divide 76 into 12. And there you go, 6.3 is the answer

(I hoped this helped. This was a bit confusing to me and difficult but i wanna try to be useful for once lol..)

Answer:

5.83

Step-by-step explanation:

70 / 12

Adam builds model rockets. Where he lives , his backyard is 12 feet below sea level. When he ignites his rocket, it flies a maximum of 350 feet straight up into the air before releasing its parachute. What is the altitude of adams rocket at its highest point, as measured from sea level?

Answers

Answer:

The answer is 338 feet.

Step-by-step explanation:

Adam builds model rockets. Where he lives , his backyard is 12 feet below sea level.

The rocket flies a maximum of 350 feet straight up into the air before releasing its parachute.

So, the altitude of Adams rocket at its highest point, as measured from sea level = $350-12=338$ feet

350 _ 12= 338 ft above sea level.

an edge of cube a is 8 inches and an edge of cube b is 5 inches to the nearest tenth how many times greater is the volume of cube a than cube b

Answers

the areas of the cubes are
$a = {8}^(3) = 512 \n \n b = {5}^(3) = 125$

so the answer is
$512 / 125 = 4.1$

good luck

Find sin(7pie/4) using exact values

Answers

$sin( ( 7\pi )/(4) )=-sin(2 \pi - ( 7\pi )/(4) )=-sin ( \pi )/(4) =- (1)/( √(2) )$

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