Answer:
EF=10
Step-by-step explanation:
If they are corresponding,
AB = 2 x Scale factor of 5 = 10
<u>Answer</u>
320 cm³
<u>Explanation</u>
Firstly, find the constant of proportionality.
V ∝ 1/p
V = k/p Where V= volume, k = constant and p = pressure of the gas.
1600 = k/4
k = 1600 × 4
= 6,400
The equation will be,
V = 6,400/p
For p =20 Kg/cm²,
V = 6,400/20
= 320 cm³
The complex number -7i into trigonometric form is 7 (cos (90) + sin (90) i) and 3 + 3i in trigonometric form is 4.2426 (cos (45) + sin (45) i)
<h3>What is a complex number?</h3>
It is defined as the number which can be written as x+iy where x is the real number or real part of the complex number and y is the imaginary part of the complex number and i is the iota which is nothing but a square root of -1.
We have a complex number shown in the picture:
-7i(3 + 3i)
= -7i
In trigonometric form:
z = 7 (cos (90) + sin (90) i)
= 3 + 3i
z = 4.2426 (cos (45) + sin (45) i)




=21-21i
After converting into the exponential form:

From part (b) and part (c) both results are the same.
Thus, the complex number -7i into trigonometric form is 7 (cos (90) + sin (90) i) and 3 + 3i in trigonometric form is 4.2426 (cos (45) + sin (45) i)
Learn more about the complex number here:
brainly.com/question/10251853
#SPJ1
Answer:
125
Step-by-step explanation:
u do 5 to the power of 3 then to the power of 1. yw.
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