Answer: 335ft
Step-by-step explanation:
The tangent of the angle of elevation is the ratio of the dam height h to the horizontal distance downriver of the observer. This gives us two equations for the height:
h= atan(1.1) = (155+a) tan(0.8)
⟹a= h/tan(1.3), 155+a= h/tan(0.8).
Subtracting the first equation from the second,
155=(155+a)−a =h/tan(0.8)−h/tan(1.1)
=h(1/tan(0.8)−1/tan(1.1)).
Solving for h,
h=155 ft (1tan(0.8)−1tan(1.1))−1
155(0.9713 - 0.5090)^-1
155(2.1631) ≈335 ft .
Answer:
48
Step-by-step explanation:
3(22)+4(32)
=(3)(4)+4(32)
=12+4(32)
=12+(4)(9)
=12+36
=48
Step-by-step explanation:
wnich grade you are in
please answer fast
Answer:
The combined length is 61 inches
Step-by-step explanation:
we know that
To find out the combined length of all the pieces Meg measured, multiply each measure by the number of pieces and then sum all the values
Let
x -----> the combined length
we know that
we have
1 piece of 3 inches
2 pieces of 5 inches
3 pieces of 6 inches
3 piece of 7 inches
1 piece of 9 inches
so
therefore
The combined length is 61 inches
Answer:
<u>Turn 6 2/3 into an Improper Fraction</u>
Multiply and get 18. Now add and get .
<u>Do Keep Change Flip</u>
Keep:
Change: ÷ into ×
Flip: 20/3 into 3/20
Your new Problem:
<u>Multiply</u>
<u>Simplify</u>