Answer:
1st, 3rd and 4th
Step-by-step explanation:
Only 2nd is false
Answer:
The answer is 7(8 + 3)
Step-by-step explanation:
7 x 8 = 56
7 x 3 = 21
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Answer:
Cos A = (√51)/ 10
Step-by-step explanation:
sin is opposite/hypothenuse
cos is adjacent/hypothenuse
Pythagorus theorem says that c² = a² + b²
10² = 7² + b²
b² = 100 - 49
b = ±√51
It doesn't make sense for a length to be a minus number therefore, we will use +√51.
Cos A = (√51)/ 10
Tell me if I am wrong.
Can I get brainliest
Answer:
the answer is B, because triangle BCA is a rotation of triangle XYZ.
Step-by-step explanation:
Y=-2x-2 is the right answer