Assuming you didn't forget parentheses, it's C. Hope this helped.
Answer:
Step-by-step explanation:
The quadrilateral has 4 sides and only two of them are equal.
A) to find PR, we will consider the triangle, PRQ.
Using cosine rule
a^2 = b^2 + c^2 - 2abcos A
We are looking for PR
PR^2 = 8^2 + 7^2 - 2 ×8 × 7Cos70
PR^2 = 64 + 49 - 112 × 0.3420
PR^2 = 113 - 38.304 = 74.696
PR = √74.696 = 8.64
B) to find the perimeter of PQRS, we will consider the triangle, RSP. It is an isosceles triangle. Therefore, two sides and two base angles are equal. To determine the length of SP,
We will use the sine rule because only one side,PR is known
For sine rule,
a/sinA = b/sinB
SP/ sin 35 = 8.64/sin110
Cross multiplying
SPsin110 = 8.64sin35
SP = 8.64sin35/sin110
SP = (8.64 × 0.5736)/0.9397
SP = 5.27
SR = SP = 5.27
The perimeter of the quadrilateral PQRS is the sum of the sides. The perimeter = 8 + 7 + 5.27 + 5.27 = 25.54 cm
Answer:
The minimum distance (perihelion) of Uranus from the sun is 2,749,040,972.
Step-by-step explanation:
Consider the provided information.
The length of the half of the major axis is 2,876,769,540 kilometers, and the eccentricity is 0.0444.
The eccentricity (e) of an ellipse is the ratio of the distance from the center to the foci (c) and the distance from the center to the vertices (a).
Substitute a = 2,876,769,540 and e = 0.0444 in above formula and solve for c.
Minimum distance of Uranus from the sun is:
Hence, the minimum distance (perihelion) of Uranus from the sun is 2,749,040,972.
Answer:
75° quadrant I
120° quadrant II
–30° quadrant IV
–200° quadrant II
Step-by-step explanation:
just did it and these were the answers
