No 7x3/5 is 4.2 and 4x1/5 is 0.8
9514 1404 393
Answer:
32.7°
Step-by-step explanation:
Solve the given equation for C, then fill in the given values and evaluate.
C = arccos((a² +b² -c²)/(2ab))
Y = arccos((50² +90² -55²)/(2·50·90)) = arccos(7575/9000) ≈ 32.7°
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Y is angle A in the attached triangle solver.
Answer:
a and c are correct
b and are wrong
bc length=ab length=4 squres
so triangle is isosceles.a is correct
abc angle is right angle.so c is correct
triangle has only one line of symmetry.that will be the line joining b and the mid point of ac
ac side is bigger than other two sides.so d is incorrect
Answer:
B.
Step-by-step explanation:
Use elimination, or you can plug the answer choices into the eguations. Plugging in the answer choices does take a while though. If you don't know how to do elimination then basically you try to make one of the three values equal to the other in the opposite equation. MAKE SURE TO DO THE FACTOR FOR ALL OF THE VALUES IN THE EQUATION. once you solved it, you then plug in the value back into one of the equations and you find the other value.
Answer:
2, -1/3
Step-by-step explanation:
Uhh.. I don't see any of the following!
But okay, so first, we assume the stuff inside the absolute value is positive (+7, in this case).
We solve!
6x - 5 = 7
6x = 12
x = 2
And then, we assume that the stuff is negative (-7) because even if it's negative, the absolute value signs will turn it positive (+7).
6x - 5 = -7
6x = -2
x = -2/6 or -1/3
Hope that helps!
