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3 years ago

What is the best approximation for the solution to the system if equations?

Mathematics

2 answers:

nikdorinn [45]3 years ago

8 0

Answer:

(-2.2,-3)

Step-by-step explanation:

n200080 [17]3 years ago

7 0

Answer:

the answer is c

Step-by-step explanation:

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The area of a parallelogram is six square units. Both the height and the length of the base are whole numbers. What are the poss

nexus9112 [7]

well, the area of a parallelogram is simply A = bh.

we know that "b" and "h" are whole numbers or namely integers, and we know the area is 6, doing a quick prime factoring of 6 we simply get

6 = 2 * 3

2 and 3 are both prime, in how many ways can we arrange them? just 2 and 3 or 3 and 2, so those are the only possible values for "b" and "h".

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3 years ago

The amount of sales of single scoop ice-cream cones during the summer s(c0 varies directly with the number of customers c. Ten c

Nikolay [14]

Answer:

s(c)= 4.4c

Step-by-step explanation:

7 0

3 years ago

Which is the x-value of the solution of the system of equations? y=3x^2+15 y=5x^2-17

Readme [11.4K]

Answer:

C. x = ±4

Explanation:

<u>Given two equation's</u>:

y = 3x² + 15
y = 5x² - 17

Solve them simultaneously:

y = y

3x² + 15 = 5x² - 17

5x² - 3x² = 15 + 17

2x² = 32

x² = 16

x = ±√16

x = ±4

8 0

3 years ago

Plz solve I’ve been stuck on how to start it and I just can’t

AleksAgata [21]

Answer:

x and y = 0

the question looks weird and almost wrong because when you subtract the equations, you are left with nothing

Step-by-step explanation:

Multiply the top equation by 3 to make the -x a -3x instead.

Then do the top equation - the bottom equation

At this point you should be left with x

7 0

3 years ago

Read 2 more answers

during a particular period a university's information technology office received 20 service orders for problems with printers, o

stira [4]

Answer:

0.2384 = 23.84% probability that 3 were laser printers.

Step-by-step explanation:

The printers will be chosen without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x sucesses is given by the following formula:

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

In which:

x is the number of sucesses.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this question:

20 orders means that $N = 8$

8 were laser printers, which means that $k = 8$

Sample of 5 means that $n = 5$

What is the probability that 3 were laser printers?

This is P(X = 3).

$P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}$

$P(X = 3) = h(3,20,5,8) = \frac{C_{8,3}*C_{12,2}}{C_{20,5}} = 0.2384$

0.2384 = 23.84% probability that 3 were laser printers.

4 0

3 years ago