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Effectus [21]
3 years ago
15

Apply the elimination method to solve the system of equations 2x+6y=8 and 3x+2y=2 which three statements are correct

Mathematics
1 answer:
omeli [17]3 years ago
6 0

Answer: x= -2/7, y = 10/7

Step-by-step explanation: 1) 2x +6y = 8 and 2) 3x + 2y = 2

Multiply equation 2) by -3 and you get -9x -6y = -6.

Add together and sum is -7x = 2 and x= -2/7 then insert to eat, 2) value of x:

3·(-2/7) +2y = 2 and 2y = 2+ 6/7 2y = 20/7 and y = 10/7

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What will an investment of 6000 Euro at 7% p.a compound interest amount to after 5 years if the interest is compounded:
Over [174]
S = P[1 + (r / m)]^(m * t) 

S = ? 

P = 6000 euro 

r = 0.07 

m = 12 

t = 5 

S = 6000[1 + (0.07 / 12)]^(12 * 5) 

S = 6000(1.00583)^(60) 

S = 6000(1.4176...) 

<span>S = 8505.75 euro

---------------------------

You can now do the rest which is anually and quarterly.</span>
5 0
4 years ago
4 1/2 - 1 2/4 as a mixed number if possible
givi [52]
You don’t need a mixed number because 4 1/2 - 1 2/4 = 3. It’s the same as 4 1/2 - 1 1/2
4 0
4 years ago
What is least common multiple of 15, 14, and 7
SpyIntel [72]

Answer:

210

Step-by-step explanation:

15 = 3 x 5

14 = 2 x 7

7 = 7

LCM = 3 x 5 x 2 x 7 = 210

6 0
3 years ago
Read 2 more answers
What is the domain of the exponential function shown below?
Phoenix [80]

The function will exist on all real numbers. Hence the domain of the exponential function given is all real numbers

<h3>Domain of a function</h3>

The domain are independent values of an expression for which it exist. The standard exponential equation is expressed as y = ab^x

Given the exponential function as shown:

y = 5(3)^x

The function will exist on all real numbers. Hence the domain of the exponential function given is all real numbers

Learn more on domain here: brainly.com/question/26098895

#SPJ1

7 0
2 years ago
Give a base class with at least one public member function, how many child classes can redefine that member function? a. 1 b. 0
solong [7]

Answer:

C. All of them

Step-by-step explanation:

The base class is the super/parent class of a child class; so a child class inherit from a base class.

When a child class inherit from a base class; it have access to redefine the member function that is declared public. 'public' is an access modifier which means it can be access from outside the class and modified.

Therefore, all the child class which inherit the base class can redefine the member function that are public.

3 0
3 years ago
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