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Kay [80]
3 years ago
15

Solve for x if 7x =21 a. X=-3 b.x=14 c. =3 d. X= -14

Mathematics
1 answer:
vaieri [72.5K]3 years ago
5 0
I hope this helps you



7x÷7=21÷7



x=3
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Is the product of two integers positive, negative, or zero? How can you tell?
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Answer:

When you multiply a negative number by a positive number then the product is always negative. When you multiply two negative numbers or two positive numbers then the product is always positive. 3 times 4 equals 12. Since there is one positive and one negative number, the product is negative 12.

Step-by-step explanation:

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A neighbor farmer had some chickens. She had 24 feet of wire fencing to
Paraphin [41]

Answer:

A rectangle is defined by its length = L, and its width = W.

So the perimeter of the of the rectangle can be written as:

Perimeter = 2*L + 2*W.

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Now, we do not have any other restrictions, so to know the different dimensions now we can write this as a function, by isolating one of the variables.

2*L = 24ft - 2*W

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L(W) = 12ft - W.

Such that:

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And W must be smaller than 12ft (because in that case we would have zero or negative length)

Then the possible different dimensions are given by:

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3 years ago
Which functions represent exponential growth? y = f(x) y = h(x) y = g(x) y = k(x).
Ymorist [56]

All are the exponential function.

<h2>Exponent</h2>

Exponential notation is the form of mathematical shorthand which allows us to write complicated expressions more succinctly. An exponent is a number or letter is called the base. It indicates that the base is to raise to a certain power. c is the base and x is the power.

<h3>Which functions represent exponential growth?</h3>

1.  y = f(x) is a exponential function.

Because the range of the exponential function is from 0 to ∞ for all values of x. And it is 1 at x = 0.

2.  y = h(x) is a exponential function.

Because the range of the exponential function is from 0 to ∞ for all values of x. And it is 1 at x = 0.

3.  y = g(x) is a exponential function.

Because the range of the exponential function is from 0 to ∞ for all values of x. And it is 1 at x = 0.

4.  y = k(x) is a exponential function.

Because the range of the exponential function is from 0 to ∞ for all values of x. And it is 1 at x = 0.

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More about the exponent link is given below.

brainly.com/question/5497425

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2 years ago
What is the square root of 124
marysya [2.9K]

Answer:

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Step-by-step explanation:

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A calculator can tell you the numerical value. It is an irrational number near ...

  11.135528725660043844...

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