Answer:
3
Step-by-step explanation:
y+7=10
y+7-7=10-7
y=3
Answer:
The measure of angle BAC is 20°
Step-by-step explanation:
step 1
Find the measure of arc BC
we have that
m∠BOC=arc BC ------> by central angle
we have
m∠BOC=40°
therefore
arc BC=40°
step 2
Find the measure of angle BAC
we know that
The inscribed angle is half that of the arc it comprises
so
m∠BAC=(1/2)[arc BC]
we have
arc BC=40°
substitute
m∠BAC=(1/2)[40°]
=20°
Answer:
A) 2L + 2W = 70
B) L+7 = W
B) L -W = -7
B) 2L -2W = -14 then we add equation A)
A) 2L + 2W = 70
4L = 56
Length = 14 inches
Width = 21 inches
Step-by-step explanation:
