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Ymorist [56]
3 years ago
12

Evaluate each expression without using a calculator and write your answers in radians arccos 1

Mathematics
1 answer:
Alenkasestr [34]3 years ago
5 0
Arccos(1) = 0 . . . . . or any integer multiple of 2π
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5.62x0.7x1.35 helppp quickkk plsss
laila [671]

Answer:

5.3109

Step-by-step explanation:

5.62 x 0.7 is equal to 3.934, and this multiplied by 1.35 is equal to 5.3109.

3 0
3 years ago
Read 2 more answers
The graph represents two complex numbers, z1 and z2, as solid line vectors. Which points represent their complex conjugates?
REY [17]

Point <em>A</em> represents the complex conjugate z₁ and point L represents the complex conjugate of z₂ respectively

The complex conjugate of a complex number is a complex number that having equal magnitude in the real and imaginary part as the complex number to which it is a conjugate, but the imaginary part of the complex conjugate has an opposite sign to the original complex number

Therefore, graphically, the complex conjugate is a reflection of the original complex number across the x-axis because the transformation for a reflection of the point (x, y) across the x-axis is given as follows;

Preimage (x, y) reflected across the <em>x</em> axis give the image (x, -y)

Where in a complex number, we have;

x = The real part

y = The imaginary part

The reflection of z₁ across the x-axis gives the point <em>A</em>, while the reflection of z₂ across the x-axis gives the point <em>L</em>

Therefore;

Point <em>A</em> represents the complex conjugate z₁ and point L represents the complex conjugate of z₂

Learn more about complex numbers here;

brainly.com/question/20365080

4 0
3 years ago
A pharmaceutical company receives large shipments of aspirin tablets. The acceptance sampling plan is to randomly select and tes
DerKrebs [107]

Answer:

a) The probability that this whole shipment will be​ accepted is 30%.

b) Many of the shipments with this rate of defective aspirin tablets will be rejected.

Step-by-step explanation:

We have a shipment of 3000 aspirin tablets, with a 5% rate of defects.

We select a sample of size 48 and test for defectives.

If more than one aspirin is defective, the batch is rejected.

The amount of defective aspirin tablets X can be modeled as a binomial distribution random variable, with p=0.55 and n=48

We have to calculate the probabilities that X is equal or less than 1: P(X≤1).

P(X\leq1)=P(X=0)+P(X=1)\\\\\\P(0)=\binom{48}{0}(0.05)^0(0.95)^{48}=1*1*0.0853=0.0853\\\\\\P(1)=\binom{48}{1}(0.05)^1(0.95)^{47}=48*0.05*0.0897=0.2154\\\\\\P(X\eq1)=0.0853+0.2154=0.3007

8 0
3 years ago
A pair of boots has an original price of $95. they are on sale for 35 percent off. what number can you multiply $95 by to equal
Alex Ar [27]
Multiply it by .35
.35 is equal to %35.
4 0
4 years ago
emily just hired a new employee to work in your bakeshop . in one hour the empolyee burned 750 choclat chip cookies . if this re
Ivan
You planned on making 5000 cookies
4 0
4 years ago
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