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Monica [59]
3 years ago
15

If sec a = 5/4 and a is an angle in quadrant iv find the value of cos a

Mathematics
1 answer:
wariber [46]3 years ago
8 0
We know that
<span>sec a = 5/4
</span>sec(a)=1/cos(a)
then 
cos (a)=1/sec(a)
cos (a)=1/(5/4)=4/5---> is positive because the function cos is positive in IV quadrant

the answer is cos(a)=4/5
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So this problem can be solve using the formula:
F = P(1+i)^t
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F = 3500 (1+0.35)^t
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5 0
2 years ago
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5 0
3 years ago
In the figure to the right, can you conclude that triangle GHI is congruent to triangle KJI? Justify your reasoning.
inessss [21]

Answer:

No

Step-by-step explanation:

You cannot conclude that ΔGHI is congruent to ΔKJI, because although you can see/interpret that there all the angles are congruent with one another, like with vertical angles (∠GIH and ∠KIJ) and alternate interior angles (∠H and ∠J, ∠G and ∠K), we don't know the side lengths.

All the angles could be congruent, but the sides might be different. For example, ΔGHI might be a bigger triangle than ΔKJI, which could make them similar to one another, but not congruent.

For something to be congruent to another, everything must be exactly the same.

7 0
3 years ago
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Step-by-step explanation:

8 0
3 years ago
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Step-by-step explanation:

7 0
2 years ago
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