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Vinil7 [7]
2 years ago
9

Given the points below, find

Mathematics
1 answer:
pashok25 [27]2 years ago
6 0

Answer:

XY=(-45,-8)

Step-by-step explanation:

XY=(-9,2)(5,-4)

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10. What is an expression for the perimeter of the triangle?
Whitepunk [10]

Answer:

See explanation, and comment for more details!

Step-by-step explanation:

10. The perimeter of any shape is the sum of the length of the sides, which means that the perimeter of this triangle is x+y+z.

11. Since this is a right triangle, the two legs form the height and base. The area of this triangle is therefore x*y/2.

12.

a. x=3, y=4, z=5

b. x=\sqrt{2}, y=\sqrt{2}, z=2

c.x= \sqrt{3}, y=2, z=\sqrt{7}

Hope this helps!

4 0
3 years ago
If you could put wings on any species of animal, what animal would you choose?
denis-greek [22]

Answer:

Humans

Explanation:

So I can have wings :)

5 0
2 years ago
Read 2 more answers
Melissa went for a drive in her new car. She took 9 hours to drive 460.8 miles. What was her speed?
Elis [28]

Answer:

Her speed was 51.2 and the work i did was 460.8 / 9

Step-by-step explanation:

5 0
3 years ago
A box contains four 75 W lightbulbs, three 60 W lightbulbs, and three burned-out lightbulbs. Two bulbs are selected at random fr
Law Incorporation [45]

Answer:

a. 0.689

b. 0.8

c. 0.427

Step-by-step explanation:

The given scenario indicates hyper-geometric experiment because because successive trials are dependent and probability of success changes on each trial.

The probability mass function for hyper-geometric distribution is

P(X=x)=kCx(N-k)C(n-x)/NCn

where N=4+3+3=10

n=2

k=4

a.

P(X>0)=1-P(X=0)

The probability mass function for hyper-geometric distribution is

P(X=x)=kCx(N-k)C(n-x)/NCn

P(X=0)=4C0(6C2)/10C2=15/45=0.311

P(X>0)=1-P(X=0)=1-0.311=0.689

P(X>0)=0.689

b.

The mean of hyper-geometric distribution is

μx=nk/N

μx=2*4/10=8/10=0.8

c.

The variance of hyper-geometric distribution is

σx²=nk(N-k).(N-n)/N²(N-1)

σx²=2*4(10-4).(10-2)/10²*9

σx²=8*6*8/900=384/900=0.427

6 0
2 years ago
Evaluate the expression for the given value of the variable<br> 3x + 5 when x = 5
Amiraneli [1.4K]

Answer:

Step-by-step explanation:

Putting value of x in the equation

3(5) + 5

= 15 + 5

= 20

5 0
2 years ago
Read 2 more answers
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