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Amanda [17]
3 years ago
6

4,4,4,6,7,7,9,9,13,14,15,15,16

Mathematics
1 answer:
Llana [10]3 years ago
7 0

Answer:

what to do????????????????

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I need help on this one <br> find x (3,7), (x,4) m= 3/5 and with this one<br> (x,-2), (6,-4) m= -1/2
gavmur [86]

Answer:

x (3,7), (x,4) m= 3/5   x=2      (x,-2), (6,-4) m= -1/2    x=5

Step-by-step explanation:

5 0
3 years ago
What is the slope of a line that is parallel to the line represented by the equation?
zaharov [31]

Answer:

y= -2/5x + 4/5

The slope is -2/5

3 0
3 years ago
This is my last problem and I don't know whether or not this is right. Can someone please help me? &lt;3 &lt;3 &lt;3 (7th grade
uysha [10]

You got the total number of pages correct, but the equation gets you 39 total pages. Instead of multiplying by 1/3, you multiply by 3 because 114+3 is 1/3 of the total pages. So:

(114+3) · 3 = p

351 = p

6 0
3 years ago
Read 2 more answers
Which expression is equivalent to 3(4m − 5)?
Elena L [17]
Hello!

your answer is:
<span>using the distributive property of multiplication, the equivalent expression is:</span>
12m-15

<em>I hope this helps, and have a nice day!</em>


5 0
3 years ago
What is the probability that all the roots of x2 + bx + c = 0 are real? [0,1]?
notsponge [240]

x^2+bx+c will have real roots when the discriminant of the quadratic, \Delta=b^2-4c, is non-negative, i.e.

b^2-4c\ge0\implies b^2\ge4c

Your question about probability is currently impossible to answer without knowing exactly what the experiment is. Are you picking b,c at random from some interval? Is the choice of either distributed a certain way?

I'll assume the inclusion of "[0,1]" in your question is a suggestion that both b,c are chosen indepently of one another from [0, 1]. Let B,C denote the random variables that take on the values of b,c, respectively. I'll assume B,C are identical and follow the standard uniform distribution, i.e. they each have the same PDF and CDF as below:

f_X(x)=\begin{cases}1&\text{for }0

F_X(x)=\begin{cases}0&\text{for }x

where X is either of B,C.

Then the question is to find P(B^2\ge4C). We have

P(B^2\ge4C)=P\left(C\le\dfrac{B^2}4\right)

and we can condition the random variable C on the event of B=b by supposing

P\left(C\le\dfrac{B^2}4\right)=P\left(\left(C\le\dfrac{B^2}4\right)\land(B=b)\right)=P\left(C\le\dfrac{B^2}4\mid B=b\right)\cdot P(B=b)

then integrate over all possible values of b.

=\displaystyle\int_{-\infty}^\infty P\left(C\le\dfrac{b^2}4\right)f_B(b)\,\mathrm db

=\displaystyle\int_{-\infty}^\infty F_C\left(\dfrac{b^2}4\right)f_B(b)\,\mathrm db

=\displaystyle\int_0^1\dfrac{b^2}4\,\mathrm db=\frac1{12}

4 0
3 years ago
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