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Fudgin [204]
4 years ago
11

Each quadratic equation can have as many as ______ solutions because the degree is 2.

Mathematics
1 answer:
kompoz [17]4 years ago
7 0

Given statement is "Each quadratic equation can have as many as ______ solutions because the degree is 2."

Now we have to figure out about what will go into the blank space so that given statement becomes sensible.


We know that any quadratic equation looks like in shape of

y=ax^2+bx+c

Which is a polynomial of degree 2 because the highest exponent on the variable x is 2.

We know that a polynomial of degree n, can have as many as "n" solutions.

So using that logic, quadratic equation of degree 2 will also have 2 solutions.

Hence final answer thta will go into the blank space is "2".

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A service station has both self-service and full-service islands. On each island, there is a single regular unleaded pump with t
zaharov [31]

Answer:

a. 0.2

b. 0.42

c. 0.7

d. the solution is in the explanation

e. x and y are not independent

Step-by-step explanation:

a. from the joint probability mass function table,

p(x=1) and p(Y= 1)

= p(1,1) = 0.2

b. prob(0,0)+prob(0,1)+prob(1,0)+prob(1,1)

= 0.10 + 0.04 + 0.08 + 0.20

= 0.42

P(X ≤ 1 and Y ≤ 1) = 0.42

c. prob {X ≠ 0 and Y ≠ 0}

= prob(1,1) + prob(1,2) + prob(2,1) + prob(2,2)

= 0.20 + 0.06 + 0.14 + 0.30

= 0.7

d. we have to calculate the marginal pmf of x and y here.

<u>we have the x values as 0,1,</u>2

prob(x=0) = 0.1 + 0.04 + 0.02

= 0.16

prob(x=1) = 0.08 + 0.2 + 0.06

= 0.34

prob(x=2) = 0.06+0.14+0.3

= 0.50

<u>we have y values as 0,1,2</u>

prob(y=0) = .1+.08+.06

= 0.24

prob(y=1) = .04+.2+.14

= 0.38

prob(y = 2) = 0.02+0.06+0.3

= 0.38

P(X ≤ 1) = prob(x=0)+prob(x=1)

= 0.34+0.16

= 0.50

e. from the joint table we have this,

prob(1,1) = 0.2

prob(x=1) = 0.34

prob(y=1) = 0.38

then prob(x=1)*prob(y=1)

= 0.34*0.38

= 0.1292

therefore prob(1,1) is not equal to prob(x=1)*prob(y=1)

0.2≠0.1292

x and y are not independent

7 0
3 years ago
Complete the table for the given rule y=x/4
vichka [17]
Since they only give you the y values in the table, it would be easier if you isolated the x in the rule:

y = x/4

Multiply both sides by 4

4y = x

Now you can simply substitute the y values into the rule to get the x

4(4) = 16

4(2) = 8

4(9) = 36

~~hope this helps~~

4 0
3 years ago
Help? I know number 3 is yes but I don’t remember why.
elena-s [515]

3. Yes, the shapes are congruent, because all the corresponding sides are the same lengths.

The figure that isn't labeled with any letters was reflected across the X-axis at X =1

4)

JKL was rotated 180 degrees, then shifted 2 units to the left.

4 0
4 years ago
I WILL GIVE BRAINLIEST AND 10 POINTS IF ANSWERED QUICKLY!!!!!!!!!!!!!
vladimir1956 [14]

Answer: A=100(12)t5.27


Step-by-step explanation:

Assume / and ^ got lost from eqns.

A(t) = initial × (1/2)^(t/halflife)

So initial = 100, halflife = 5.27,

A=100(12)t5.27 means A=100(1/2)^(t/5.27)

so that A is 50 when t is 5.27

7 0
3 years ago
Find the equation of the line with Slope = -4 and passing through (-1,8). Write your equation in the form
Thepotemich [5.8K]

Answer:

y= -4x+4

Step-by-step explanation:

y=mx+b

where x=-1, y=8, and m=-4

8=(-4)(-1)+b

8=4+b

4=b

Thus, y= -4x+4

8 0
3 years ago
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