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vesna_86 [32]
3 years ago
14

Solve the equation 9 equals negative d + 17

Mathematics
2 answers:
pshichka [43]3 years ago
6 0

Step-by-step explanation:

1. substract 17 to both sides

2. know you have -8=-d

3. divide both sides by -1 in order to get a positive answer

4. total answer d= 8

crimeas [40]3 years ago
4 0

Answer:

Step-by-step explanation:

9=-d+17

(add d to both sides because it is the opposite of subtracting)

9+d=17

(subtract 9 from both sides because it is the opposite of adding)

d=17-9=8

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2 years ago
The joint probability mass function of XX and YY is given by p(1,1)=0p(2,1)=0.1p(3,1)=0.05p(1,2)=0.05p(2,2)=0.3p(3,2)=0.1p(1,3)=
inessss [21]

Answer:

P(Y=1|X=3)=0.125

Step-by-step explanation:

Given :

p(1,1)=0  

p(2,1)=0.1

p(3,1)=0.05

p(1,2)=0.05

p(2,2)=0.3

p(3,2)=0.1

p(1,3)=0.05

p(2,3)=0.1

p(3,3)=0.25

Now we are supposed to find the conditional mass function of Y given X=3 :  P(Y=1|X=3)

P(X=3) = P(X=3,Y=1)+P(X=3,Y=2) +P(X=3,Y=3)

P(X=3)=p(3,1) +p(3,2) +p(3,3)

P(X=3)=0.05+0.1+0.25=0.4

P(Y=1|X=3)=\frac{P(X=3,Y=1)}{P(X=3)} =\frac{p(3,1)}{P(X=3)}=\frac{0.05}{0.4}= 0.125

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8 0
3 years ago
The sum of 4 consecutive even integers is -4. What are the integers?
Lina20 [59]

Answer:

-4, -2, 0, 2

Step-by-step explanation:

the expression for the integers are; x, x +2, x + 4, x + 6

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your integers are; -4, -2, 0, 2

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8 0
3 years ago
Sand pouring from a chute forms a conical pile whose height is always equal to the diameter. If the height increases at a consta
Cerrena [4.2K]

Answer:

125\pi \frac{\text{ft}^3}{\text{min}}.

Step-by-step explanation:

Let x represent height of the cone.

We have been given that Sand pouring from a chute forms a conical pile whose height is always equal to the diameter.

We know that radius is half the diameter, so radius of cone would be \frac{x}{2}.

We will use volume of cone formula to solve our given problem.

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Upon substituting the value of height and radius in terms of x, we will get:

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Now, we will take the derivative of volume with respect to time as:

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Upon substituting x=10 and \frac{dx}{dt}=5, we will get:

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\frac{dV}{dt}=\pi\cdot 25\cdot 5

\frac{dV}{dt}=125\pi

Therefore, the sand is pouring from the chute at a rate of 125\pi \frac{\text{ft}^3}{\text{min}}.

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3 years ago
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