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2 years ago

Simplify the expression. Did I do this right ??

Mathematics

1 answer:

STatiana [176]2 years ago

4 0

<h3>yes you simplify it right</h3>

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Terry Bergolt's bank granted him a single-payment loan of $4,400 at an interest rate of 6% exact interest. The term of the loan

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The correct answer is (b)

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3 years ago

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If x2 - 6x - 16, what are the x-intercepts?

romanna [79]

If that’s meant to be x^2 - 6x - 16
Then factorise to (x+2)(x-8)
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3 years ago

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Why can you multiply the numerator and the denominator of a fraction by the same number to find a equivalent fraction?

OLga [1]

Yes cause x*a/b*a=x/b

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3 years ago

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What is the solution to this system of equations? -5.9x-3.7y=-2.1 5.9x+3.7y=2.1

marin [14]

Answer:

There are infinite solutions that solve the system $y=0.57-1.59x$

Step-by-step explanation:

The solution can be expressed as $y=0.57-1.59x$ (there are infinite solutions that solve the system). This results from rearranging terms in the first or second equation.

This is because the first equation is a linear combination of the second one (this is, the first equation equals (-1) times the second equation). This means that the second equation does not add any information about x and y: it says exactly the same as the first equation about the relationship between x and y.

Then, in terms of solving the system, you have one unique expression (not repeated) that shows the relationship between y and x. This means that, any pair of (x,y) that meet the requirements expressed by $y=0.57-1.59x$ , will solve the system. Then we have infinite solutions.

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4 years ago

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Which of the following random variables is not discrete?

Ilia_Sergeevich [38]

Answer:

b) The annual rainfall in a city

Step-by-step explanation:

Remember, a discrete variable is one that can only take a finite number of values between any two values of a characteristic and a continuous variable is one that can take an infinite number of values between any two values of a characteristic.

a) Observe that the variable x='classes taken in one semester' can take the values 0,1,2,...,n.

Then the variable x is discrete

b) Observe that the variable x='annual rainfall in a city' can take the values 2in, 1.6in, 5.1 in, 0.1in

Then, the variable x can be take a infinite number of values between two number. So x isn't a discrete variable.

c) The variable x='attendance at a football game' can take the values 3000,5000... n. And never will be a decimal number because There cannot be a personal decimal number. Therefore, x is a discrete variable.

d) The variable x='patients treated at an emergency room in a day' can take the values 1,2,3,...,n. And never will be a decimal number because There cannot be a personal decimal number. Therefore, x is a discrete variable.

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3 years ago