Find 2.1 x 32 Find 2.3 x 5.8 Find 7.5 x 23.4
2 answers:
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Answer:
249.6
Step-by-step explanation
There are 4 identical equilateral triangle,
we can find the area of one and multiply by 4
area of triangle =
now 62.4*4 = 249.6
Answer:
Step-by-step explanation:
First, rewrite the given equation in the form of y=mx+c.
m is the gradient while c is the y-intercept.
3x-5y=8
5y= 3x -8
Thus, the gradient of the given equation is ⅗.
The product of the gradients of perpendicular lines is -1.
(gradient of line)(⅗) = -1
gradient of line= -1 ÷⅗
gradient of line=
To find the value of c, substitute a coordinate.
When x=3, y=7,
7= -5 +c
c= 7+5
c= 12
Hence, the equation of the line is .
Answer:
Step-by-step explanation:
Given
The length of the shadow is 78 ft
the angle of elevation is
Suppose the height of the building is
From the figure, we can write
The height of the building is 45.03 ft
