The actual length of a building is 168 feet and its width is 152 feet. If the scale length of the bulding in the drawing is 21 inches and the width is 19 inches what scale was used in the drawing

40

Step-by-step explanation:

1 inch = 8 feets

Step-by-step explanation:

Actual Length = 168 feets

Scale length = 21 inches

168 / 21 = 8

Actual width = 152 feets

Scale width = 19 inches

152 / 19 = 8

Hence, we can conclude that

Scale used :

1 inch = 8 feets

That is 1 inch in drawing equals 8 feets of the actual size

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.

b. f(x) = –√x + 3this is the correct answer