12.6 × 0.25 = 3.15
i hope this helps
Answer:
x = 9.3
Step-by-step explanation:
tan 25° = x/20
0.4663 = x/20
x = 9.3
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Find Slope :
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y = -2/7x + 9
Slope = -2/7
Perpendicular slope= 7/2
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Find y - intercept :
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y = mx + b
y = 7/2 x + b
At (4, -6)
-6 = 7/2 (4) + b
-6 = 14 + b
b = -6 - 14
b = -20
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Form equation :
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y = mx + b
y = 7/2 x - 20
2y = 7x - 40
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Answer: 2y = 7x - 40
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-9x=-36
divide both sides by -9
to get x by itself
to get +x
-9x/-9= -36/-9
cross out -9 and -9, then becomes -1*-1*x= x
x= -36/-9
answer:
x= 4
