-5.7+(-4.2)=-9.9 is this correct? Also I'm getting off after this have a great day!.

AfilCa [17]

Answer:

7

Step-by-step explanation:

<h2>to smome in your body and the difference between the difference between a person who is a good thing to smome and a few people are a different type and you are not sure how to make them better or a person with a better sense than the other person in a different type and you are a good relationship is the difference is the difference is the difference is the difference is that the answer to smome </h2>

3 0

3 years ago

Evaluate the expression for n=-4 n-1

KonstantinChe [14]

Answer:

Step-by-step explanation:

Step 1: Add 4n to both sides.

n+4n=−4n−1+4n

5n=−1

Step 2: Divide both sides by 5.

5n

5

=

−1

5

n=

−1

5

4 0

3 years ago

Find all complex solutions of 2x^2+x+6=0. (If there is more than one solution, separate them with commas.)

ankoles [38]

Answer:

x=-1/4+i*sqrt(47)/4 and x=x=-1/4-i*sqrt(47)/4

Step-by-step explanation:

Using quadratic formula, x=(-1±sqrt(1-48))/4.

x=-1/4+i*sqrt(47)/4 and x=x=-1/4-i*sqrt(47)/4

4 0

3 years ago

Read 2 more answers

A researcher plants 22 seedlings. After one month, independent of the other seedlings, each seedling has a probability of 0.08 o

Andrews [41]

Answer:

E(X₁)= 1.76

E(X₂)= 4.18

E(X₃)= 9.24

E(X₄)= 6.82

a. P(X₁=3, X₂=4, X₃=6;0.08,0.19,0.42)= 0.00022

b. P(X₁=5, X₂=5, X₄=7;0.08,0.19,0.31)= 0.000001

c. P(X₁≤2) = 0.7442

Step-by-step explanation:

Hello!

So that you can easily resolve this problem first determine your experiment and it's variables. In this case, you have 22 seedlings (n) planted and observe what happens with the after one month, each seedling independent of the others and has each leads to success for exactly one of four categories with a fixed success probability per category. This is a multinomial experiment so I'll separate them in 4 different variables with the corresponding probability of success for each one of them:

X₁: "The seedling is dead" p₁: 0.08

X₂: "The seedling exhibits slow growth" p₂: 0.19

X₃: "The seedling exhibits medium growth" p₃: 0.42

X₄: "The seedling exhibits strong growth" p₄:0.31

To calculate the expected number for each category (k) you need to use the formula:

E(X $E(X_{k}) = n_{k} * p_{k}$