Answer:
sure
Step-by-step explanation:
Answer:
A) ERROR
B) ∠C = 26°
Step-by-step explanation:
Houston, We have a problem!!! too much information
If we had a legit triangle, the law of sines would hold
19/sin138 = 8/sin20
28.395 = 23.390
as this is NOT an equality, the triangle does not exist as described.
IF it did, we'd get different results depending on which set we used
∠F = 180 - 138 - 20 = 22°
Law of sines
19/sin138 = DE/sin22 ⇒ DE = 19sin22/sin138 = <u>10.63697...</u>
or
8/sin20 = DE/sin22 ⇒ DE = 8sin22/sin20 = <u>8.762211...</u>
If we attempt to use Law of cosines
DE² = 19² + 8² - 2(19)(8)cos22 = <u>11.9639...</u>
so really none is correct because we attempt to use trig calculations to a non-triangle.
12) AC² = 15² + 19² - 2(15)(19)cos120
AC = 29.51270...
29.51270 / sin120 = 15/sinC
C = arcsin(15sin120/29.51270) = 26.1142... <u>26°</u>
Answer:
14
Step-by-step explanation:
1 hour = 60 minutes
5*60=300 minutes
300+15 minutes
315/45
7*2=14
....................................................
Yes
For example: Cut an apple into 9ths and another one into 8ths. Which has a bigger slice?
8/m-9=6/m-8
Move -9 to the other side. Sign changes from -9 to +9.
8/m-9+9=6/m-8+9
8/m=6/m+1
Move +6m to the other side. Sign changes from +6m to -6m.
8/m-6/m=6/m-6/m+1
2m could also equal to : 1/2m
1/2m=1
Multiply by 2/1 for 1/2m and 1.
1/2(2/1)m=2/1(1)
Cross out 2 and 2, divide by 2. Cross out 1 and 1, divide by 1.
m=2
Answer: m=2
