Answer:
8.2
Step-by-step explanation:
Area of triangle is calculated by multiplying height to the base and that divided by two
20 × h ÷ 2 = 56^2
h = 5.6
The square length of CD is equal to sum of square length of height and base
6^2 + 5.6^2 = CD^2
CD = 8.2
Try this solution:
1. Given: α:4x-y+2z=-4 and β:x+y-4z=3.
if vector n₁⊥α and n₂⊥β, then required cosine is:
where n₁*n₂=4*1+(-1)*1+2*(-4) and |n₁|*|n₂|=√(4²+1²+2²)*√(1²+1²+4²).
2. Using the formula of cosine:
answer: ≈0.2572
Answer: It is asking you to use methods that you've learned to prove that the x-inter and the y-inter of this "Function" or "Equation" have equal values.
Step-by-step explanation:
Answer:
X Intercept (-2,0), (-3,0) and Standard form y = -4x^2 - 20x - 24
Step-by-step explanation:
To write a polynomial in standard form, simplify, and then arrange the terms in descending order.
y = ax^2 + bx + c
y = (−4x−8) (x+3)
Expand (−4x−8) (x+3) using the FOIL Method
y = −4x ⋅ x − 4x ⋅ 3 − 8x−8 ⋅ 3
Simplify and combine like terms.
y = −4x^2 − 20x − 24
Hope this can help
For this case we can model the problem as two similar rectangle triangles.
We then have to simulate triangles:
Rewriting we have:
From here, we clear the value of x:
Answer:
the tree is 20 feet tall