Answer:
its eather a or c
Step-by-step explanation:
Answer:
2h-3a
Step-by-step explanation:
First Find f(a+h)
f(a+h) =-a-h
Then find f(a)
f(a) =2a-3h
Then f(a+h) - f(a)= - a-h-(2a-3h)=2h-3a
Answer:
(5,7)
Step-by-step explanation:
8x + 7y = 89
2x + 5y = 45
Multiply the second equation by 4
4(2x + 5y) = 45*4
8x +20y = 180
Subtract the first equation
8x +20y = 180
-8x -7y = -89
--------------------------
13y = 91
Divide each side by 13
13y/13 = 91/13
y =7
Now solve for x
2x+5y =45
2(x) +5(7) = 45
2x +35 = 45
Subtract 35 from each side
2x+35-35 = 45-35
2x =10
Divide each side by 2
2x/2 = 10/2
x=5
Answer:
QR=8
QU=76
Measure of arc ST=114°
Measure of arc QR=114°
Measure of arc XT=57°
Step-by-step explanation:
Given that,
YU=YV
ST=16
mQS=34
mRT=98
We will use pythagoras theorem,
QR=8
QU=76
QR=ST
Since they span the same arc, let the arc be x.
360 - QS - RT = QR + ST
Recall that QR=ST
360 - 34 - 98 = x + x
228 = 2x
Divide both side by 2
X= 228/2
X=114°
Therefore, the measure of the arc ST and the arc QR=114°
Measure of span of arc XT will be:
= 1/2× (arc ST)
= 1/2 × 114
= 57°
5 x (-1) - 7 x 5 + 5^2
-5 - 35 +25
-40 + 25
= -25