If the temperature after 4.4 degree Celsius drop was -2.5 degree Celsius, what was the temperature at noon

If the temperature after 4.4 degree Celsius drop was -2.5 degree Celsius, ° was the temperature at noon

Step-by-step explanation:

Here we have , If the temperature after 4.4 degree Celsius drop was -2.5 degree Celsius . We need to find what was the temperature at noon . Let's find out:

Let us suppose that initially we have temperature x° , So the temperature after 4.4 degree Celsius drop was -2.5 degree Celsius , i.e.

⇒

Adding 4.4 both sides:

⇒

⇒

⇒ °

Therefore , If the temperature after 4.4 degree Celsius drop was -2.5 degree Celsius, ° was the temperature at noon .

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.