Hello :
<span>4x - y =3........ ×3
2x+3y = 18
I'have : 12x-3y = 9
2x +3y = 18
</span><span>by the addition method : 14 x =27
</span> x = 27/14
4(27/14)-y = 3
y = 33/7
A= π(r)^2 so it would be A= π(7x7) and so A= π(49). Hope it helps :-)
Answer:
-74
Step-by-step explanation:
Answer:
Step-by-step explanation:
Recall that cos Ф = adj / hyp. If adj = 6 and hyp = 10, then by the Pythagorean Theorem, opp = 8: 6² + 8² = 10²
Then:
sin Ф = opp / hyp = 8/10 or 4/5
cos Ф is given: 6/10 or 3/5
tan Ф = opp / adj: 8/ 6 or 4/3
cot Ф = 1/sin Ф = 10/8 or 5/4
sec Ф = 1/ cosФ = 10/6 or 5/3
csc Ф = 1 / sin Ф = 10/8 or 5/4
9514 1404 393
Answer:
4230
Step-by-step explanation:
4.23×10³ = 4.23×<u>1000</u> = <u>4230</u>