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3 years ago

Marla did 65 sit-ups each day for one week.Use the distributive property to find out the number of sit-ups Marla did

2 answers:

7 0

All this question is asking you to do is multiply 65 and 7. The 7 comes from the amount of days in a week. The product of these numbers is 455.

Maria did 455 sit-ups in a week.

weeeeeb [17]3 years ago

4 0

65 times 7= 455 sit-ups in a week

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Can anyone help with this problem?

Pie

Answer:

The numerator factors to

$(x + 2)(x - 1)$

The denomenator factors to

$(x + 4)(x - 1)$

7 0

2 years ago

Need some more help please!

Vikki [24]

For this case we have that by definition $\pi$ equals 180 degrees.

We must convert 135 degrees to radians, then:

$135 * \frac {\pi} {180} =\\135 * \frac {3.14} {180} =\\\frac {423.9} {180} = 2.355$

Rounding off we have:

2.4 radians.

Answer:

2.4 radians

3 0

3 years ago

Consider the function and its inverse.

Ber [7]

Answer:

The domain of $f(x)$ is restricted to $x\leq 0$ , and the domain of $f^{-1}(x)$ is restricted to $x\geq 4$ .

Step-by-step explanation:

From Function Theory we know that domain of a function is the set of values such that an image exist. Let $f(x) = x^{2}+4$ and $f^{-1}(x) = \sqrt{x-4}$ the function and its inverse, respectively.

At first glance we notice that function is a second order polynomial and every polinomial is a continuous function and therefore, there exists an image for every element of domain.

But domain of its inverse is restricted to every value of x so that $x-4 \geq 0$ , which means that $x\geq 4$ .

Finally, we concluded that following answer offers the best approximation to our result:

The domain of $f(x)$ is restricted to $x\leq 0$ , and the domain of $f^{-1}(x)$ is restricted to $x\geq 4$ .

6 0

2 years ago

What function is graphed below?

erik [133]

Because the graph is shifted up three units from the original mother function (f(x) = log x), and therefore, the answer is f(x) = log x + 3.

3 0

3 years ago

Read 2 more answers

14. Define a Variable

andreyandreev [35.5K]

Answer: In mathematics, a variable is a symbol which functions as a placeholder for varying expression or quantities, and is often used to represent an arbitrary element of a set. In addition to numbers, variables are commonly used to represent vectors, matrices and functions

Step-by-step explanation:A symbol for a value we don't know yet. It is usually a letter like x or y.

Example: in x + 2 = 6, x is the variable.

Why "variable" when it may have just one value? In the case of x + 2 = 6 we can solve it to find that x = 4. But in something like y = x + 2 (a linear equation) x can have many values. In general it is much easier to always call it a variable even though in some cases it is a single value.

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3 years ago