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2 years ago

13

I need number 28 please

1 answer:

expeople1 [14]2 years ago

5 0

X=310 square feet you have to plant so you don't have enough space

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What are the missing angles?

saw5 [17]

Answer:

that is the solution is to the question

8 0

2 years ago

Please help me!! 1st question 9−32÷4 2nd question 108÷9⋅(−12)÷6−(100÷5) 3rd question 6 + 8 ÷ 2 4th question 40÷[24−4×(2+3)] 5th

erma4kov [3.2K]

Answer:

1. 1

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3 0

2 years ago

How can you make your answer (41-13i)/(25) into a+bi form?

KengaRu [80]

Hello, do you know that for any a, b and c real numbers with c different from 0 the following is correct?

$\dfrac{a+b}{c}=\dfrac{a}{c}+\dfrac{b}{c}$

Then,

$\dfrac{41-13i}{25}=\dfrac{41}{25}-\dfrac{13}{25}i$

So,

$a=\dfrac{41}{25}\\\\b=\dfrac{-13}{25}$

Thank you.

5 0

2 years ago

Suppose I have an urn with 9 balls: 4 green, 3 yellow and 2 white ones. I draw a ball from the urn repeatedly with replacement.

Mrrafil [7]

Answer:

$E(X_n)=\frac{2(n-1)}{27}$

$E(y)=\frac{14}{9}$

Step-by-step explanation:

From the question we are told that:

Sample size n=9

Number of Green $g=4$

Number of yellow $y=4$

Number of white $w=4$

Probability of Green Followed by yellow P(GY) ball

$P(GY)=\frac{4}{9}*\frac{3}{9}$

$P(GY)=\frac{4}{27}$

Generally the equations for when n is even is mathematically given by

$Probability of success P(S)=\frac{4}{27}$

$Probability of Failure P(F)=\frac{27-4}{27}$

$Probability of Failure P(F)=\frac{23}{27}$

Therefore

$E(X_n)=\frac{n}{2}*P$

$E(X_n)=\frac{n}{2}*\frac{4}{27}$

$E(X_n)=\frac{2n}{27}$

Generally the equations for when n is odd is mathematically given by

$\frac{n-1}{2}$

$E(X_n)=\frac{n-1}{2}*\frac{4}{27}$

$E(X_n)=\frac{2(n-1)}{27}$

b)

Probability of drawing white ball

$P(w)=\frac{2}{9}$

Therefore

$E(w)=\frac{1}{p}$

$E(w)=\frac{1}{\frac{2}{9}}$

$E(w)=\frac{9}{2}$

Therefore

$E(y)=[E(w)-1]\frac{4}{9}$

$E(y)=[\frac{9}{2}-1]\frac{4}{9}$

$E(y)=\frac{14}{9}$

5 0

2 years ago

Eric and his family drove 452 km in one day how many meters is this?

vodomira [7]

Answer:

452 km is 452,000 meters

Step-by-step explanation:

This question can be solved using a rule of three.

1 km is 1000 meters.

How many meters are 452 km?

1km - 1000m

452km - xm

x = 1000*452

x = 452,000

452 km is 452,000 meters

4 0

3 years ago