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3 years ago

HELPPPPPPP MEEEEEEE PLEASE

Mathematics

2 answers:

Ira Lisetskai [31]3 years ago

8 0

7. The answer is Airline 1. 8. The answer is 6/4/13. 5. 50+35 times n. 6. Bottom axis could be Number of People and left axis could be Cost of Family

sineoko [7]3 years ago

5 0

Take a better pic I can’t seee

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An mp3 player is on sale for 30% off the regular price of $39.98. How much is the discount? a. $11.99 b. $13.19 c. $13.33 d. $27

bagirrra123 [75]

Answer:

$11.99

https://www.percent-off.com/_30_%25+off_39.98_

(A calutor for you to use I used it to help my mom shop)

6 0

3 years ago

Given y = log3(x + 4), what is the range?

lora16 [44]

Answer:

The range is all real numbers.

The domain is all reals numbers that are greater than -4.

Step-by-step explanation:

$y=\log_3(x+4)$ only exists when $x+4$ is positive.

You can take the log of a negative or 0 number.

So $x+4>0$ implies $x>-4$ . (I just subtract 4 on both sides.)

So the domain is x>-4. You should see this also when you graph the curve that the curve only exist to the right of -4.

Now the range. The range is where the curve exist for the y-values.

The equivalent exponent form of $y=\log_3(x+4)$ is $3^{y}=x+4$

We can solve this for x be subtract 4 on both sides:

$x=3^y-4$

Now here y can be anything; there are no restrictions on the exponent.

Also if you look at the graph of $y=\log_3(x+4)$ you should see every y getting hit by the curve (look down to up; use the y-axis as a guide).

Let's think about the inverse I found above a little more (I'm going to swap x and y).

$y=3^x-4$ .

If we look at the domain and range of this we can just swap it to get the domain and range of $y=\log_3(x+4)$ .

$y=3^x-4$ is an exponential function of 3^x that has been moved down 4 units.

The range since it has been moved down 4 units is $(-4,\infty)$ .

The domain of an exponential function is all real numbers. There are no restrictions on what you can plug in for x.

So swapping these to find the domain and range of $y=\log_3(x+4)$ :

Domain: $(-4,\infty)$

Range : $(-\infty,\infty)$

4 0

3 years ago

Help me find the perimeter of this figure.

Alik [6]

Answer:

8+10+8+10=36+ 2 x 3.14 x radium/2

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Do you multiply area or add it

pogonyaev

It's the formula. Base times height.
For example: if 50 is the base and 10 is the height, just multiply them both.
50 x 10 = 500. And I don't think you add area-that's for finding the perimeter

5 0

3 years ago

Cons tents of proportionality

AnnyKZ [126]

Answer:

<h3>constant of proportionality - the constant value of the ratio of two proportional quantities x and y; usually written y = kx, where k is the factor of proportionality.</h3>

5 0

3 years ago