Answer:
Because of the range of the sine function.
Step-by-step explanation:
The reason why the value of the sine ratio for an acute angle
of a right triangle must always be a positive value less
than 1 has to do with the the range of the sine function.
The range of the sine function is
But in the first quadrant all y-values are positive and acute angles are less than 90°.
Therefore the range will now be 0≤y<1 for acute angles.
Sample Response: The sine ratio is the length of the side opposite a given acute angle divided by the length of the hypotenuse. Because the hypotenuse is the side opposite the largest angle, the 90° angle, it has to be the longest side. Thus, the ratio will have a denominator that is larger than the numerator, and the ratio will be less than 1.
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Answer:
Brain is 173/30 feet away from where he started.
Step-by-step explanation:
0 + 31/5 = 31/5 feet
31/5 - 4/3 = 73/15 feet
73/15 + 9/10 = 173/30 feet
Answer:
Step-by-step explanation:
31/5 - 4/3 + 9/10 =
186/30 - 40/30 + 27/30 =
213/30 - 40/30 =
173/30 or 5 23/30 ft <=====
Answer: 1 1/2 hours or 90 minutes
Step-by-step explanation: Painting 1/2 of her bedroom took 3/4 an hour or 45 minutes. At the same rate, it would take her another 3/4 of an hour or 45 more minutes. Add it together to get 90 minutes or 1.5 hours to paint the full room.
Answer:
OR = √65
Step-by-step explanation:
M and N are the midpoints of their respective sides, so O is the centroid of the triangle. That means ...
ON = QN/3 = 12/3 = 4
By the Pythagorean theorem, ...
OR² = NR² +ON²
OR² = 7² +4² = 65
OR = √65
Using the Pythagorean theorem, we can find the value of OR as √65 or approximately 8.06 .
In the given figure, we can use the Pythagorean theorem to find the value of OR.
The Pythagorean theorem is a formula that relates the lengths of the sides of a right triangle, which states that the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides.
This can be seen as c² = a² + b².
M and N are the midpoints of their respective sides, so O is the centroid of the triangle.
Given that QN is perpendicular to PR,ON = QN/3 = 12/3 = 4.
The value of ON =4, and the value of NR = PR/2
NR = 14/2(Because the N is midpoint for PR)
NR =7
By the Pythagorean theorem:-
OR² = NR² +ON²
OR² = 7² +4² = 65
OR = 8.06
Learn more about Pythagorean theorem here:
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Answer:
Distance travelled in hours is 659.17 miles .
Step-by-step explanation:
As given
Jill drives miles every hour .
i.e
Jill drives miles every hour .
Now find out the distance travelled in hours .
Distance travelled = 659.17 miles (Approx)
Therefore distance travelled in hours is 659.17 miles .