This question is incomplete, the diagram is missing. The complete diagram is uploaded along this answer.
Answer: (3) 2.5
Step-by-step explanation:
From the diagram, given that;
BF = 2.3, DF = x, FC = 5, FE = 4.6,
Now
by theorem
BF * FC = DF * FE
so we substitute
2.3 * 5 = x * 4.6
11.5 = 4.6x
x = 11.5 / 4.6
x = 2.5
therefore the value of x is 2.5
Answer:
The displacement is: - 80 i
Step-by-step explanation:
In order to answer the question, you have to apply the displacement formula, which is:
ΔX= Xf-Xi
Where ΔX is the displacement, Xf is the final position and Xi is the initial position. The formula represents the change in the position of an object from the origin.
Let the origin be in 0 km,with the x-axis positive to te right.
Notice that the displacement is a vector. The positions are:
Xf=163 km (i)
Xi= 243 km (i)
Because John starts in 243 km and finishes in 163 km.
Where i is the unit vector in the x direction.
Therefore:
ΔX= 163 i - 243 i
Solving:
ΔX= -80 i
Notice that for calculating the displacement you just need the initial and final position. It doesn't depend on the distance traveled.
Im pretty sure number 15 is D
Answer:
if you divide both sides of -5x > 0 you get z > <em>0. </em>This is incorrect because if you choose a value from the possible solutions such as z=6 and substitute it into the original equation you get <em>-30</em> > 0, which is <em>not true</em>
I put the answers in bold
hope this helps!
Step-by-step explanation:
F(q)=0
so, q^2 - 125 = 0
(q)^2 - (5)^2 = 0
(q+5) (q-5) = 0
q = 5, -5
