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3 years ago

Is this a function ? please explain your reasoning. someone please help me !!

Mathematics

1 answer:

Nimfa-mama [501]3 years ago

6 0

Answer:

yeah thats a function

Step-by-step explanation:

if you were to draw a vertical line through any point on that graph, you could tell that there would be no point above another, which makes this data set a function. basically, there must be no more than one y-value for every x-value in a data set for it to be considered a function.

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a coffee mug collection includes four red mugs, eight yellow mugs and two white mugs. What is the probability of selecting two w

Kruka [31]

Assuming that the selection process was done without replacement, the probability of selecting two white mugs without replacement is 1/28

<h2>Given data</h2>

Sample Space

Red mugs = 4

yellow mugs = 8

white mugs = 2

Sample Size = 4+8+2 = 14

We are going to assume the selection was done with out replacement

Hence the probability of selecting the first white mug is

<em>The probability of selecting the second white mug is </em>

<em />

Hence the probability of selecting two white mugs one after another

= 1/4*1/7

=1/28

Learn more about probability at:

brainly.com/question/25839839

6 0

2 years ago

The shadow of a tree measures 25 feet from its base. The angle of elevation to the Sun is 31º How tall is the tree? Round your a

grigory [225]

Answer: 15 feet

Step-by-step explanation:

Hi, since the situation forms a right triangle (see attachment) we have to apply the next trigonometric function.

Tan α = opposite side / adjacent side

Where α is the angle of elevation to the sun, , the opposite side (x) is the height of the tree, and the adjacent side is the length of the shadow.

Replacing with the values given:

Tan 31 = x /25

Tan 31 (25) =x

x = 15 feet

Feel free to ask for more if needed or if you did not understand something.

4 0

4 years ago

4(x-11)^2=25

netineya [11]

Expand the square: 4(x-11)^ =25
4(x-11)(x-11)=25

Distribute : 4(x-11)(x-11)=25
4(x(x-11)-11(x-11))=25

Distribute: 4(x(x-11)-11(x-11))=25
4(x^-11x-11(x-11))=25

Solution: x=17/2
x=27/2

hope that helps

8 0

3 years ago

Plz help question is in pic 20 points!!

emmasim [6.3K]

Answer:

AB/2 = 6 and 12 = AB

Step-by-step explanation:

5 0

2 years ago

Ellen types 205 words in five minutes. Which student has the same typing speed as Ellen?

Arada [10]

Answer:

B. Bradley

Step-by-step explanation:

We know that Ellen can type 205 words in 5 minutes. To start comparing to the other students, we need to find out how many words she can type per minute. We can divide 205 by 5 to get our answer.

$x=\frac{205}{5}$

$x=41$

<u>Ellen can type 41 words per minute</u>. To find our answer we must find how many words per minute the other students can type. Lets start with the first and go down from there:

Alissa:

$x=\frac{220}{20}$

$x=11$

It can't be Alissa.

Bradley:

$x=\frac{328}{8}$

$x=41$

Your answer is B. Bradley

6 0

4 years ago