3 years ago

The sum of a number and 2

Mathematics

1 answer:

mezya [45]3 years ago

3 0

Step-by-step explanation:

due to how you asked

x + 2

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Brianna has 4 pink bracelets . One third of all her bracelets are pink. How many bracelets does Brianna have?

HACTEHA [7]

4/x=1/3 Cross multiply.
X=12 12 bracelets.

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3 years ago

1. An amusement park gives away gifts to celebrate its grand opening. Every 2nd visitor will receive a

Mademuasel [1]

Answer:

Every 200 visitors, the visitor will receive all 4 gifts.

Step-by-step explanation:

With the given numbers, the lowest common number would be 200.

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3 years ago

Which function has an inverse function?

daser333 [38]

Answer: Option B

Step-by-step explanation:

By definition, only those functions that are one to one have an inverse function.

A function is one by one if there are not two different input values, $x_1$ and $x_2$ , that have the same output value y

Note that the function $f(x)= \frac{|x+3|}{5}$ is not a one-to-one function

When x=2 $f(x)= \frac{|2+3|}{5}=1\ ,\ \ y=1$

When x=8 $f(x)= \frac{|-8+3|}{5}=1\ \ ,\ y=1$

Note that the function $f(x)= \frac{x^4}{7}+ 27$ is not a one-to-one function

When x=1 $f(x)= \frac{(1)^4}{7}+27\ ,\ \ y=\frac{190}{7}$

When x=-1 $f(x)= \frac{(-1)^4}{7}+27\ ,\ \ y=\frac{190}{7}$

Note that the function $f(x)= \frac{1}{x^2}$ is not a one-to-one function

When x=1 $f(x)= \frac{1}{(1)^2}\ ,\ \ y=1$

When x=-1 $f(x)= \frac{1}{(-1)^2}\ ,\ \ y=1$

Then the answer is the option B.

You can verify that The function $f (x) = x ^ 5-3$ is a one-to-one function and therefore its inverse is a function

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3 years ago

It is 3 miles around Westwood Park exercise trail. After skating around the trail 5½ times, Mr. Zorn lost a wheel. How many mile

mart [117]

I hope this helps you

5 1/2=5.2+1/2=11/2

3.11/2

33/2

15 3/2

16,5

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3 years ago

(MATH, RATIOS) help please I really need to get this done

Marysya12 [62]

Where’s the picture?

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3 years ago