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erastovalidia [21]
2 years ago
10

PLEASE HELP MEEEEEEEEEEEEE!!!!!

Mathematics
2 answers:
marusya05 [52]2 years ago
8 0

Answer:help with what???

Step-by-step explanation:

Naya [18.7K]2 years ago
4 0
With what I don’t see anything.?
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Solve using the method of elimination and determine if the system has 1 solution, no solutions, or infinite solutions
Minchanka [31]

\begin{array}{rrrrr} 10x&-&18y&=&2\\ -5x&+&9y&=&-1 \end{array}~\hfill \implies ~\hfill \stackrel{\textit{second equation }\times 2}{ \begin{array}{rrrrr} 10x&-&18y&=&2\\ 2(-5x&+&9y&)=&2(-1) \end{array}} \\\\[-0.35em] ~\dotfill\\\\ \begin{array}{rrrrr} 10x&-&18y&=&2\\ -10x&+&18y&=&-2\\\cline{1-5} 0&+&0&=&0 \end{array}\qquad \impliedby \textit{another way of saying \underline{infinite solutions}}

if we were to solve both equations for "y", we'd get

10x-18y=2\implies 10x-2=18y\implies \cfrac{10x-2}{18}=y\implies \cfrac{5}{9}x-\cfrac{1}{9}=y \\\\\\ -5x+9y=-1\implies 9y=5x-1\implies y=\cfrac{5x-1}{9}\implies y = \cfrac{5}{9}x-\cfrac{1}{9}

notice, the 1st equation is really the 2nd in disguise, since both lines are just pancaked on top of each other, every point in the lines is a solution or an intersection, and since both go to infinity, well, there you have it.

8 0
2 years ago
Using a story of ratios or tape diagram answer this question. A taxi cab in Myrtle Beach charges $2 per mile and $1 for every pe
ollegr [7]
Y = 2m + p
12 = 2m + 2
10 = 2m
5 = m

The taxi cab traveled 5 miles.
7 0
3 years ago
Read 2 more answers
Use the long division method to find the result when 12x3 + 1732 + 12x + 4 is<br> divided by 3x + 2.
zhenek [66]
The answer is 13 duh boy
6 0
3 years ago
Create a word problem using addition<br> your problem should include tress grown in UAE
Alborosie

Answer:

Practice the worksheet on word problem on addition and subtraction.

1. In a village, there are 4,318 men, 3,624 women and 5,176 children. What is the total population of the village?

2. In a school, there are 860 children in the pre-primary section, 1,200 children in the primary section and 1,540 children in the upper primary section. What is the total strength of the school?

3. A new movie at a theatre was released. On the first day 5,602 tickets, on the second day 5,890 tickets and on the third day 6,145 tickets were sold. Find the total number of tickets sold in these three days.

4. In a fruit gardens, there are 5,146 mango trees, 4,318 orange trees and 3,645 guava trees. Find the total number of trees in the graden.

5. In a godown, there are 1,274 bags of rice, 1,322 bags of wheat and 722 bags of pulses. How many bags of food grains in all are stored in the godown?

5 0
2 years ago
Read 2 more answers
Consider randomly selecting a student at a certain university, and let A denote the event that the selected individual has a Vis
Mice21 [21]

Answer:

Step-by-step explanation:

Given that,

Visa card is represented by P(A)

MasterCard is represented by P(B)

P(A)= 0.6

P(A')=0.4

P(B)=0.5

P(B')=0.5

P(A∩B)=0.35

1. P(A U B) =?

P(A U B)= P(A)+P(B)-P(A ∩ B)

P(A U B)=0.6+0.5-0.35

P(A U B)= 0.75

The probability of student that has least one of the cards is 0.75

2. Probability of the neither of the student have the card is given as

P(A U B)'=1-P(A U B)

P(A U B)= 1-0.75

P(A U B)= 0.25

3. Probability of Visa card only,

P(A)= 0.6

P(A) only means students who has visa card but not MasterCard.

P(A) only= P(A) - P(A ∩ B)

P(A) only=0.6-0.35

P(A) only=0.25.

4. Compute the following

a. A ∩ B'

b. A ∪ B'

c. A' ∪ B'

d. A' ∩ B'

e. A' ∩ B

a. A ∩ B'

P(A∩ B') implies that the probability of A without B i.e probability of A only and it has been obtain in question 3.

P(A ∩ B')= P(A-B)=P(A)-P(A∩ B)

P(A∩ B')= 0.6-0.35

P(A∩ B')= 0.25

b. P(A ∪ B')

P(A ∪ B')= P(A)+P(B')-P(A ∩ B')

P(A ∪ B')= 0.6+0.5-0.25

P(A ∪ B')= 0.85

c. P(A' ∪ B')= P(A')+P(B')-P(A' ∩ B')

But using Demorgan theorem

P(A∩B)'=P(A' ∪ B')

P(A∩B)'=1-P(A∩B)

P(A∩B)'=1-0.35

P(A∩B)'=0.65

Then, P(A∩B)'=P(A' ∪ B')= 0.65

d. P( A' ∩ B' )

Using demorgan theorem

P(A U B)'= P(A' ∩ B')

P(A U B)'= 1-P(A U B)

P(A' ∩ B')= 1-0.75

P(A' ∩ B')= 0.25

P(A U B)'= P(A' ∩ B')=0.25

e. P(A' ∩ B)= P(B ∩ A') commutative law

Then, P(B ∩ A') = P(B) only

P(B ∩ A') = P(B) -P(A ∩ B)

P(B ∩ A') =0.5 -0.35

P(B ∩ A') =0.15

P(A' ∩ B)= P(B ∩ A') =0.15

5 0
2 years ago
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