Answer: 97 meters
Step-by-step explanation:
Draw 2 right triangles KLM and ABC.
ML=3.2 m ( is a pole) KL =1.29 m( pole's shadow).
(The triangle KLM is right because we suppose that pole is staying vertically).
In triangle AB is tower's shadow= 39.25 m and BC is the height og tower=x meters?
Triangles KLM and ABC are similar .
So ML/KL=x/AB
3.2/1.29=x/39.25
x=3.2*39.25/1.29= approx 97.36 meters= 97 meters
Answer with Step-by-step explanation:
We are given that an equation of curve
We have to find the equation of tangent line to the given curve at point
By using implicit differentiation, differentiate w.r.t x
Using formula :
Substitute the value x=
Then, we get
Slope of tangent=m=
Equation of tangent line with slope m and passing through the point is given by
Substitute the values then we get
The equation of tangent line is given by
This is required equation of tangent line to the given curve at given point.
Answer: 28.33
Step-by-step explanation: 72+22-5-4+3x PEMDAS
94-5-4+3x
89-4+3x
85+3x
3x 3x
28.33=x
Correct question:
Which reaction describes a beta emission? 2659Fe→ 2759Co + −10e, 88226Ra→ 86222Rn + 24He, 94239Pu + 24He→ 96242Cm + 01n, 54118Xe→ 53118I + +10e
Answer:
2659Fe→ 2759Co + 1e
Step-by-step explanation:
General equation for beta decay is given as;
where;
A is the atomic mass of the element
z is atomic number of the element
X is the parent atom
Y is the daughter element
β is beta emission
In beta emission, there is loss of one electron and zero proton, the will cause the daughter element to gain on electron in order to balance the reaction.
Based on beta decay equation above, we select the reaction that describes beta emission.
2659Fe→ 2759Co + 1e
Here;
A = 59
z = 26
z + 1 = 27