Answer:
Step-by-step explanation:
Given
Required
The total length in metres (this completes the question)
The total length is:
Convert mm to m
<em>The total length of the wood is 9.65 metres</em>
Answer:
(x, y) = (1, 3)
Step-by-step explanation:
given the 2 equations
x + y = 4 → (1)
y = 3x → (2)
Substitute y = 3x into (1)
x + 3x = 4
4x = 4 ( divide both sides by 4 )
x = 1
Substitute x = 1 into (2) for corresponding value of y
y = 3 × 1 = 3
solution is (1, 3 )
Answer:
a: $18 b: $108 c: $21.60 if you need the answers to the second question tell me.
Step-by-step explanation:
90 / 5 = 18 + 90 = 108 / 5 = 21.60
Answer:
(1.82, 3.17)
Step-by-step explanation:
Given the curve:
y = cosh(x)
we need that the tangent has slope 3. The tangent of a curve in a given point is found with its derivative.
dy/dx = sinh(x) = 3
From the plot of sinh(x), we get:
x ≈ 1.82
Replacing into cosh(x), we get:
y = cosh(1.82) ≈ 3.17
Then, at point (1.82, 3.17) the tangent is 3
16x+9x+5=180 because, they form a straight line
25x+5=180
25x=175
x=7
25(7)+5=180, now sub 7 for x
9(7)+5=4y
63+5=4y
68=4y
68/4=y
17=y
Answer:x=7, y=17
