You did not attach any
picture to solve this problem. We cannot calculate for the value of A’ and D’
without the correct graph. However, I think I found the correct graph (see
attached), please attach it next time.
So we are given that the
figure is dilated by a factor of, meaning that all of its end points are
multiplied by 2. By this rule, all we have to do is to simply multiply the
initial coordinates of A and D by 2 to get A’ and D’, that is:
A’ = (-1 * 2, -1 * 2) = (-2,
-2)
<span>D’ = (2 * 2, -1 * 2) = (4,
-2)</span>
Answer:
See proof below
Step-by-step explanation:
show that
sinx/1+cosx=tanx/2
From LHS
sinx/1+cosx
According to half angle
sinx = 2sinx/2 cosx/2
cosx = cos²x/2 - sin²x/2
cosx = cos²x/2 - (1- cos²x/2)
cosx = 2cos²x/2 - 1
cos x + 1 = 2cos²x/2
Substitute into the expression;
sinx/1+cosx
= (2sinx/2 cosx/2)/2cos²x/2
= sinx.2/cos x/2
Since tan x = sinx/cosx
Hence sinx/2/cos x/2 = tan x/2 (RHS)
This shows that sinx/1+cosx=tanx/2
Answer:
Width is 20cm
Step-by-step explanation:
Step one:
Given data
let the width be x
W= x
L= x+5
P= 90
Step two:
The expression for the perimeter is
P= 2L+2W
90= 2*x+2(x+5)
90= 2x+2x+10
collect like terms
90-10=4x
80= 4x
divide both sides by 4
x= 80/4
x= 20
Answer:
A & D for sure. Probably B
Step-by-step explanation:
Students don't own their homes. Homeowners in your neighborhood might not meet the definition of Random.
Replace <span>y</span> with <span>0</span> and solve for <span>x</span>.<span>x=−<span><span>3−3i<span>√3</span></span>2</span>,−<span><span>3+3i<span>√3</span></span><span>2
there is 2 real roots!</span></span></span>
