9x² + 7y² = 42
7y² = 42 - <span>9x²
</span>
y² = (42 - <span>9x²)/7</span>
Complete Question
A person standing 213 feet from the base of a church observed the angle of elevation to the church's steeple to be 33 ∘. Find the height of the church
Answer:
138.3 ft
Step-by-step explanation:
We solve this question above using using the Trigonometric function of Tangent.
tan θ = Opposite/Adjacent
Where:
Opposite = Height of the church = x
Adjacent = Distance for the base of the church = 213ft
Angle of elevation θ = 33°
Hence:
tan 33 = x /213 ft
Cross Multiply
x = tan 33 × 213 ft
x = 138.32381735 ft
x = Opposite Approximately = 138.3 ft
Therefore, the height of the church = 138.3 ft
Answer:
a.) Graph is attached; blue is Petunia's and red is Billy's
b.) Number of Hours: 4 | Cost: 32 Pounds
Unit Form Is
Like
123 Unit Form
1 hundredth, 2 tenths, 3 ones
Answer:
B. 67°
Step-by-step explanation:
An acute angle is an angle that has a degree that's less than 90°. This eliminates answers "C," and "D."
The information above states that the triangle is right, meaning that one of its angles is 90°, and there's another angle that's 23°.
So add these together, and subtract from 180 (all triangles are 180°), to get the other acute angle:
90 + 23 = 113
180 - 113 = 67°
<u>The missing acute angle is 67°</u>