Answer:
84.4 m
Step-by-step explanation:
We are given that
The new angle,
Slop of the present bank=210 ft
We have to find the horizontal distance into the bank must they dig.
The horizontal distance they have to dug=191.8-107.4=84.4 m
Step-by-step explanation:
<u><em>f(a):</em></u>
So for this you simply plug in "a" as x, and this doesn't really do anything beside replace all values with x, so you just have the equation:
<u><em>2 f(a):</em></u>
So for this one, you want to represent f(a) using the equation it's equal to (5a + 4), and substitute it in for f(a). In doing so, you get the expression:
2*f(a) -> 2(5a + 4) -> 10a + 8
<u><em>f(2a):</em></u>
So this is very similar to the first question, although you will have to do some multiplication. So just plug in 2a as "x" to get the equation:
<u><em>f(a+2):</em></u>
Basically the same process, you plug in (a+2) as "x" and simplify:
<u><em>f(a) + f(2)</em></u>:
This is similar to the second question, and you simply want to replace the f(a) with the equation that represents it (5a + 4) and same thing for f(2) = 5(2) + 4
<h2>(3x+4)+2(3x+4)=117</h2>
<h2>= (3x+4)+(6x+8)=117</h2><h2>= 3x+4+6x+8=117</h2><h2>= 9x+12=117</h2><h2>= 9x = 117-12 </h2><h2>= 9x = 105</h2><h2>= x =105 ÷ 9</h2><h2>= x = 11.6666666667</h2>
<h2>Hence,x = 11.6666666667</h2>
You add the three sides together. The problem does help you itself.
"<span>The perimeter of a triangle can be found by adding the lengths of its three sides. "
Convert 5 3/4 to decimal form, to make it easier to solve.
5 3/4= 5.75
3.4+5.75+7.32= 16.47 inches</span>
Answer:
12
Step-by-step explanation:
Let the unknown number be x.
8 = -4(1) + x
8 = -4 + x
x - 4 = 8
x = 8 + 4
x = 12