Whenever you're interested in computing the (absolute) difference between two values of a certain variable, you have to subtract the final value and the initial value. This is often written as delta:

$\Delta x = x_{\text{final}} - x_{\text{initial}}$

So, in this case, the final temperature is -30°F. The initial temperature is 115°F. So, the variation is

$\Delta T = T_{\text{final}} - T_{\text{initial}} = -30 - 115 = -145$

A negative delta indicates that the value decreased, which is our case.

7 0

4 years ago

A regular hexagon is rotated 360° about its center. How many times does the image of the hexagon coincide with the pre image dur

lianna [129]

The image of the regular hexagon coincides with the pre-image 6 times during rotation.

A regular hexagon is a polygon that has six equal sides and six equal angles.

In a single rotation which is usually the rotation of an object at 360°, the number of times in which the regular hexagon coincides with its pre-image is 6 times, this is because it has 6 equal sides and 6 equal angles.

Learn more about regular polygon here:

brainly.com/question/1592456

8 0

3 years ago

Which is bigger 40% of 120 or 1/4 of 200

Anvisha [2.4K]

40% of 120 is 48 1/4 of 200 is 50 1/4 of 200 is bigger.

3 0

3 years ago

I NEED HELP ASAP! the question is in the picture

kakasveta [241]

Sin30= x/18
•18 •18
18sin(30)=x

8 0

3 years ago