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3 years ago

Solve photo question. Mathematics

Mathematics

2 answers:

bekas [8.4K]3 years ago

4 0

We can substitute each and check if it gives us the answer 13

1st one:
4(1)+3(6) = 13
4 + 18 = 13
22 ≠ 13
It does not satisfy the equation!

therefore, The last one is the answer after checking them all.

4(4) + 3(-1) = 13
16 - 3 = 13
13 = 13

(4, -1)

irakobra [83]3 years ago

3 0

(4,-1). 4x+3y=13. You do 4(4)+3(-1)=13. hope that helps.

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A company with n employees publishes an internal calendar, where each day lists the employees having a birthday that day. What i

lutik1710 [3]

Answer: $1-(\frac{364}{365})^n$

Step-by-step explanation:

Binomial probability formula :-

$P(x)=^nC_xp^x(1-p)^x$ , where P(x) is the probability of getting success in x trials, n is the total number of trials and p is the probability of getting success in each trial.

We assume that the total number of days in a particular year are 365.

Then , the probability for each employee to have birthday on a certain day :

$p=\dfrac{1}{365}$

Given : The number of employee in the company = n

Then, the probability there is at least one day in a year when nobody has a birthday is given by :-

$P(x\geq1)=1-P(x$

Hence, the probability there is at least one day in a year when nobody has a birthday = $1-(\frac{364}{365})^n$

5 0

3 years ago

Which is the longest? A. 2 km B. 25 m C. 2,500 cm D. 3,000 mm

Leona [35]

2km=2000m
25m=25m
2500cm=25m
3000mm=3m

Hence the longest is 2km=2000m

8 0

3 years ago

Find the area of the rhombus.

Inessa [10]

A=24

Find the area by multiplying both diagonals and dividing them by 2. Like so: And you might be wondering how to do that. By using the pythagorean theorem and some simple addition, you could get the answer. One diagonal is 8 and the other is 6....so, 8x6=48....48/2=24

Please let me know if you have any other questions!

3 0

3 years ago

Read 2 more answers

Five decreased by twice a number is same as five less than three times the number.

sergejj [24]

Answer: If you are suppose to write an algebraic expression it is: 5 - 2x = 3x - 5
If you are suppose to solve the answer is:
5-2x=3x-5
-2x=3x-10
-5x=-10
x=2

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2 years ago

Eaches seven science classes. He needs 12 liters of water for each class to perform an upcoming experiment. How many milliliters

Angelina_Jolie [31]

Answer:

Step-by-step explanation:

7 × 12 = 84

84 × 1000 = 84000

84000 mililetre

7 0

3 years ago