After reading a low of -16°F at 10 P. M.,
the temperature began rising an average
of 3 degrees an hour. What was the
thermometer reading at 1 A. M.?

-7

Step-by-step explanation:

First determine the number of hours that have past from 10PM to 1 AM

10PM to 11 PM is 1 Hour

11PM to 12 AM is 1 Hour

12AM to 1 AM is 1 hour

for a total of 3 hours

Next multiply the average number of degrees the temperature is rising by the number of hours that passed

3 x 3 =9 which is the total number of degrees the temperature has risen by.

Now add 9 to -16

-16 + 9 = -7

b. an equilateral triangle inscribed in a circle

step-by-step explanation:

we are given the figure of two circles having a triangle inside.

now, we know that,

"when a figure is lying inside an another figure, then the outside figure is known as circumscribed figure and the figure lying inside is referred to as the inscribed figure".

as we see that, the circles are containing the triangle completely.

thus, the circles are the circumscribed figures and the triangle is the inscribed figure.

hence, we get, 'an equilateral triangle is inscribed in a circle'.

c

step-by-step explanation: