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2 years ago

6

Find an equation for the ellipse that has its center at the origin and satisfies the given conditions. vertices v(0, ±5), passin

g through (3, 2)

1 answer:

Kryger [21]2 years ago

5 0

This should be the answer.

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Classifying the fruit in a basket as apple, orange, or banana, is an example of the ___________ level of measurement?

Serggg [28]

-ratio

-interval

-nominal

-ordinal

Answer:

Nominal

Step-by-step explanation:

-Ratio level of measurement means that you can build a fraction.

-interval level of measurement means that the distance that exists between values is important.

-Nominal means that the values are only named and there is no organization.

-Ordinal means that the values can be ordered by rank.

According to this, the answer is that classifying the fruit in a basket as apple, orange, or banana, is an example of the nominal level of measurement.

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3 years ago

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Find BC<br> (triangle)<br> sides = 20mi, 22mi<br> inside = 95 degrees

Hunter-Best [27]

To solve this problem you need to know the law of cosines.

7 0

3 years ago

If you take out a $5,000.00 loan with 10% interest how much do you pay

Paul [167]

Answer:

Step-by-step explanation:

I=PRT/100

I=5000*10*4=200,000/100

I=$2000

8 0

3 years ago

natima [27]

Answer:

See explanation

Step-by-step explanation:

Let x be the number of spade shovels, y -the number of flat shovels and z - the number of square showels sold that day.

The store keeps an inventory of 80 shovels, then

x+y+z=80

The store always buy twice as many spade shovels as square, so

x=2z

The total cost of all shovels is

16x+9.60y+12.80z=1,072

a) The system of three equations is

$\left\{\begin{array}{l}x+y+z=80\\ \\x=2z\\ \\16x+9.60y+12.80z=1,072\end{array}\right.$

b) In matrix form this is

$\left(\begin{array}{ccc}1&1&1\\ 1&0&-2\\ 16&9.60&12.80\end{array}\right)\cdot \left(\begin{array}{c}x\\y\\z\end{array}\right)=\left(\begin{array}{c}80\\0\\1,072\end{array}\right)$

c) The determinant is

$\left\|\begin{array}{ccc}1&1&1\\ 1&0&-2\\ 16&9.60&12.80\end{array}\right\|=0-32+9.60-0+19.20-12.80=-16$

d) Find three determinants:

$\left\|\begin{array}{ccc}80&1&1\\ 0&0&-2\\ 1,072&9.60&12.80\end{array}\right\|=0-2,144+0-0+1,536-0=-608$

$\left\|\begin{array}{ccc}1&80&1\\ 1&0&-2\\ 16&1,072&12.80\end{array}\right\|=0-2,560+1,072-0+2,144-1,024=-368$

$\left\|\begin{array}{ccc}1&1&80\\ 1&0&0\\ 16&9.60&1,072\end{array}\right\|=0+0+768-0-0-1,072=-304$

So,

$x=\dfrac{-608}{-16}=38\\ \\y=\dfrac{-368}{-16}=23\\ \\z=\dfrac{-304}{-16}=19$

e) If the store doubled all prices and inventory, then the new matrix is

$\left(\begin{array}{ccc}1&1&1\\ 1&0&-2\\ 32&19.20&25.60\end{array}\right)\cdot \left(\begin{array}{c}x\\y\\z\end{array}\right)=\left(\begin{array}{c}160\\0\\2,144\end{array}\right)$

7 0

3 years ago

Giving brainiest if you get it Right

Dafna1 [17]

Answer:

b or d

Step-by-step explanation:

7 0

2 years ago

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