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3 years ago

Please help me for this question

Mathematics

2 answers:

lesya [120]3 years ago

7 0

The perimeter is 58 yards..........

Artist 52 [7]3 years ago

6 0

7+14+15+5+8 + 9 =58 yard

answer 58 yd

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Nina wants to put color tiles on a square three color tiles fit across the top of the square how many rows and Columns of the sq

Nonamiya [84]

Nina will need 3 columns,3 rows and she will use 9 squares in all.
Hope that helped

8 0

3 years ago

8 3/4 is 25% of what number

Hunter-Best [27]

If 8 3/4 is 25% (1/4) of a number, you can multiply 8 3/4 (8.75) by 4 to get the answer, because 1/4 multiplied by 4 equals one.
(you should get 35)

6 0

3 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

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

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

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

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

3 years ago

I dont really know how to do this and its due today, please help

Novay_Z [31]

Answer:

I THINK it is A

Step-by-step explanation:

I did this question before

5 0

3 years ago

Read 2 more answers

If a woman takes an early pregnancy test, she will either test positive, meaning that the test says she is pregnant, or test neg

k0ka [10]

Answer:

0.0098

Step-by-step explanation:

Probability of being pregnant:100/1000

=1/10.

98% chance:=98/100 ×1/10

=98/1000

Therefore the probability that she really is pregnant is: 0.098

3 0

3 years ago