I need help with mine assignment
Answer:
Z= 1.96
Explanation:
The Z score that corresponds to 95% is 1.96.
The catalysts are the compound that are used in the chemical reaction for lowering the activation energy.
<h3>What are catalysts?</h3>
The catalysts are the compound that is used in the reaction to increase the rate of reaction. The catalyst is not used in the reaction.
The rate of reaction is increased with the addition of the catalyst-reactant adduct and the reduction in the activation energy of the reactant thereby aiding the formation of the product.
Thus, the catalyst is given as the compound that increases the rate of reaction by lowering the activation energy.
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Answer:
c
Explanation:
it's fire try that one tho
The expression which represent the polar form of complex number -4i when converted into the polar form is 4(cos π+ isin π)
<h3>What is complex number?</h3>
A complex number is the combination of real and imaginary number. In a complex number, real part and imaginary part of number is written together. For example,
a+bi
Here, (a) is the real part while (b) is the imaginary part.
The complex number which need to convert into its polar representation is,
n=-4i
It can be rewritten as,
n=0-4i
The radius r of the polar form is,
r²=0²+(-4)²
r²=0+16
r=4
The value of cos theta is,
tan θ=0/-4
θ=tan⁻¹(0)
θ=π
Thus, the polar form is,
z=rcos θ+(r sin θ)i
z=-4(cos π+ isin π)
Thus, the expression which represent the polar form of complex number -4i when converted into the polar form is 4(cos π+ isin π)
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