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3 years ago

How do I solve the Question

Mathematics

2 answers:

ira [324]3 years ago

8 0

Subtract 200 to make each side equal

Mandarinka [93]3 years ago

5 0

Answer:

subtract 200

Step-by-step explanation:

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Find the perimeter of a square that is 3 3\4 inches on a side.

goldfiish [28.3K]

It is B!!! If you take 3 3/4 times the # of sides which in this case is 4 equals 15 in the end.

8 0

3 years ago

Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.

yan [13]

Answer:

1. ║u-z║= 5.66

2.║v-w║=6.0

3. ║w-u║=6.08

4.║v-u║=7.81

Step-by-step explanation:

The vectors are given as;

u = <-1, -3>, v = <5,-8>, w = <5, -2>, and z = <3, 1>.

To find the magnitude of the vectors;

1. ║u-z║

<-1 - 3> = <-4 and < -3 - 1> = <-4

║<-4,-4> ║= √{ -4²+-4²} = √32 = 5.66

2.║v-w║

<5,-8> - <5,-2>

<5-5> , <-8--2>

<0,-6>

║<0,-6>║= √{0²+ -6²} = √36 = 6

3. ║w-u║

<5,-2> - <-1,-3>

<5--1> , <-2--3>

<6,1>

║6,1║= √{6²+1²} = √36+1 = √37 = 6.08

4.║v-u║

<5,-8> - <-1,-3>

<5--1> , <-8--3>

< 6 , -5 >

║6,-5║= √{6²+-5²} = √36+25 =√61 = 7.81

5 0

3 years ago

Suppose that the probabilities of a customer purchasing 0, 1, or 2 books at a book store are 0.20.2, 0.30.3, and 0.50.5, res

PIT_PIT [208]

Answer:

0.78

Step-by-step explanation:

We have the next probability distribution:

X P(X)

0 0.2

1 0.3

2 0.5

As we can see when we add all the probabilites the result is 1. Now calculating the mean we have:

$mean=\mu=(0\times0.2)+(1\times 0.3)+(2\times 0.5)=0+0.3+1=1.3$

The standard deviation is:

$\sigma=\sqrt{\sum(x-\mu)^{2}(P(x))}$

Then using the data that we have:

$\sigma=\sqrt{\sum(x-\mu)^{2}(P(x))}\\\sigma=\sqrt{(0-1.3)^{2}(0.2)+(1-1.3)^{2}(0.3)+(2-1.3)^{2}(0.5)}\\\\\sigma=\sqrt{(-1.3)^{2}(0.2)+(-0.3)^{2}(0.3)+(0.7)^{2}(0.5)}\\\\\sigma=\sqrt{(1.69)(0.2)+(0.09)(0.3)+(0.49)(0.5)}\\\\\sigma=\sqrt{0.338+0.027+0.245}\\\\\sigma=\sqrt{0.61}\\\\\sigma=0.78\\$