A number plus three and seven-tenths Write as an algebraic expression
1 answer:
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Answer:
A
Step-by-step explanation:
using the sine ratio in the right triangle, then
sin 45° = =
multiply both sides by 5
note the exact value of sin 45° =
x = 5 × sin 45° = 5 × =
Answer:
Step-by-step explanation:
Pythagorean Theorem:
In this case, a = 9, b = a, and c = 15.
The, we subtract 81 from both sides getting:
,
Then,