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HACTEHA [7]
3 years ago
13

Is the following relation a function?

Mathematics
1 answer:
abruzzese [7]3 years ago
7 0

Answer:

Yes bc the x is not repeating

Step-by-step explanation: Remember if the domain(x) is repeating like (4,4) (4,3) it is not a function because of the x and don't worrying about the y (range)  and if the domain is not repeating like (2,3)(3,8) it is a function bc of the domain (x) hope this help:)

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Mary bought 4 small cookies for 40 cents each and 2 large cookies for 90 cents each how much did she spend all together
babunello [35]

Answer:

$3.40

Step-by-step explanation:

4x.40 is 1.60

2x.90 is 1.80

Then you take 1.80+1.60 to get $3.40 Hope this helps!

4 0
3 years ago
Angad, Caroline and Sarah share some sweets in the ratio 7:4:3. Angad gets 52 more sweets than Sarah. How many sweets does Carol
padilas [110]
A = 7x, c = 4x, s = 3x

a = s+52
7x = 3x+52
4x = 52
x = 13

c = 4x = 52
Caroline gets 52.
7 0
3 years ago
A survey was taken of students in math classes to find out how many hours per day students spend on social media. The survey res
Yakvenalex [24]
The question would be:

Which is the best measure of center for first period and why?

Mean, because there are no outliers that affect the center

Median, because there is 1 outlier that affects the center

Interquartile range, because there is 1 outlier that affects the center
<span>
I think the answer would be the fourth choice "</span><span>Standard deviation, because there are no outliers that affect the center"
</span>
I hope my answer has come to your help. God bless and have a nice day ahead!
8 0
2 years ago
Help help help help
Zinaida [17]

Answer: The solution to this is <u><em>y=10x-4</em></u>

Step-by-step explanation:

Also please check out our yoo toobe channel that we have been working hard on, it is called Evimero Academy

thank you

6 0
2 years ago
Please help me with question 2
WARRIOR [948]

Answer:

sin(-a)= -15 /17

Step-by-step explanation:

Alright, lets remember that sin(x) is odd function, which means that

wherever you watch an expression like this: sin(-a), you can use the odd functions property, and turn it like the following

sin(-a)= - sin(a)

Now, other thing to remember: (sin(x))^{2}+(cos(x))^{2}=1

So, we can obtain any value for sin(x) function starting from the opposite function, cos(x), using the following:

sin(x)=\sqrt{1-(cos(x))^{2} }

So, if cos(a)= - 8 / 17, using the above equation we obtain the value for sin(a)

sin(a)=\sqrt{1 - (cos(a))^{2} } = \sqrt{1 - ( \frac{8}{17} )^{2}  }= \sqrt{\frac{225}{289} }  =15/17

Using the odd function property, we get the following result

sin(-a)= - sin(a) = -15/17

6 0
3 years ago
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