Refer to OP for Exercises 1-8. If SN and MT are diameters with m/ SPT 51 and m/ NPR 29, determine whether each arc is a minor ar
c, a major arc, or a semicircle. Then find the degree measure of each arc.
1. MNR
3. mTSR
2. MST
4. mMST
If MT= 15, find the length of each arc. Round to the nearest tenth.
5. NR
7. TSR
6. ST
8. MST
M
N
R
Geometry
1. MNR
3. mTSR
2. MST
4. mMST
If MT= 15, find the length of each arc. Round to the nearest tenth.
5. NR
7. TSR
6. ST
8. MST
M
N
R
Geometry
1 answer:
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First you must have the quadratic equal to zero. In order to do this you must subtract 7 to both sides
x^2 + 20x + (100 - 7) = 7 - 7
x^2 + 20x + 93 = 0
Now you must find two numbers who's sum equals 20 and their multiplication equal 93
Are there any? NO!
This means that you have to use the formula:
In this case:
a = 1
b = 20
c = 93
^^^We must simplify √28
√28 = 2√7
so...
simplify further:
-10 + √7
or
-10 - √7
***plus/minus = ±
Hope this helped!
~Just a girl in love with Shawn Mendes