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3 years ago

What is 65% of two hundred

2 answers:

8 0

When you are looking for a percent, the best way is to firstly find 10%. For this, you just divide your answer by 10, which in this case, gives 20. You should then divide the percentage that you are trying to find (65%) by ten. When you divide 65% by ten, you get 6.5%, and this is what you should multiply 20 by, in order to find your answer.
In this case, 6.5%x20= 130, hope this has been able to help you.

Irina18 [472]3 years ago

8 0

So you go on your calculator and type it in and you get 130

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Find all values of the angle θ (in radians, with 0 ≤ θ < 2π) for which the matrix a = cos θ −sin θ sin θ cos θ has real eigen

harina [27]

The matrix

$A=\begin{bmatrix}\cos\theta&-\sin\theta\\\sin\theta&\cos\theta\end{bmatrix}$

has eigenvalues $\lambda$ such that

$\det(A-\lambda I)=\begin{vmatrix}\cos\theta-\lambda&-\sin\theta\\\sin\theta&\cos\theta-\lambda\end{vmatrix}=0$

$(\cos\theta-\lambda)^2+\sin^2\theta=0$

$(\cos\theta-\lambda)^2=-\sin^2\theta$

$\cos\theta-\lambda=\pm\sqrt{-\sin^2\theta}$

$\lambda=\cos\theta\pm\sqrt{-\sin^2\theta}$

$\sin^2\theta\ge0$ for all values of $\theta$ , so we need to have $\sin\theta=0$ in order for $\lambda$ to be real-valued. This happens for

$\sin\theta=0\implies\theta=n\pi$

where $n$ is any integer, and over the given interval we have $\theta=0$ and $\theta=\pi$ .

4 0

3 years ago

Use the following regression equation regarding airline tickets to answer the question.

sertanlavr [38]

The interpretation of the slope is the price of an airline ticker per kilometer is 0.137

<h3>How to interpret the slope?</h3>

The regression equation is given as:

Price = 49 + 0.137 · (Distance)

A regression equation is represented as

y = b + mx

Where m represents the slope

By comparison, we have

m = 0.137

Slopes are used to represent average rates

This means that the interpretation of the slope is the price of an airline ticker per kilometer is 0.137

Read more about regression equation at:

brainly.com/question/14184702

#SPJ1

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2 years ago

Li enters a competition to guess how many jelly beans are in a jar.

olga_2 [115]

Answer 45

Step-by-step explanation:

if there is 300 jellybeans in the jar in all and his guess was 45 it means he added way more than what it was supposed to be he added 45 more

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3 years ago

Read 2 more answers

Which polygon has an interior angle sum of 360

lyudmila [28]

The four sided quadrilateral (option number 3)

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3 years ago

Tickets to a play cost $5 for adults and $2 for children. If 1,750 tickets were sold for a total of $7,100, how many children’s

Rina8888 [55]

A - quantity tickets for adults. It costs 5a dollars
c - quantity tickets for children. It costs 2c dollars.

There were 1750 tickets sold, so a+c=1750$. That's mean a = 1750 - c.

Total: 7 100$, That's mean 5a + 2c = 7 100. Substitute now 1750-c instead "a" :

5(1750-c) + 2c = 7100
8750 - 5c + 2c = 7100
-3c = -1650 |divide (-3)
c = 550

So a =1750 -c = 1750 - 550 = 1200

There were sold 1200 tickets for adults and 550 tickets for children

8 0

3 years ago