Plz hurry it's
what is 639.745 rounded to the tenths place?
a. 630 b. 639.7 c. 639.8 d. 640

639.745 rounded to the nearest tenths place would be :

= 639.7

The tenths place in decimals is the first digit to the right of the decimal point. For example, 15.2 is fifteen and two tenths.

639."7"45 4 isn't high enough to change the 7 to an 8 so we keep it as it is.

So the correct answer is B.

Hope this helps,

Davinia. xo

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.

144.50

step-by-step explanation:

21.5 x 13.4=288.10 divide by 2