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Hitman42 [59]
3 years ago
14

NEED AN ANSWER ASAP WILL GIVE BRAINLIEST

Mathematics
1 answer:
Usimov [2.4K]3 years ago
4 0

No, it is not.

Explanation:

A function is a relation in which each element of the domain, or x-value, is mapped to one element of the range, or y-value.

The question we are asked is if cost is a function of the activity type.  This means that cost would be the range and activity type would be the domain.

If this is a function, then each activity type would have only one cost.  However, on different days of the week each activity type has different prices; this means there is more than one cost for each activity type, and it is not a function.

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A survey of 500 randomly selected adults found that 57% say that they would take a ride in a fully self-driving car. The 95% con
Novay_Z [31]

Answer:

Yes; Since the confidence interval limits are both greater than 50%, we can reasonably conclude that more than half of all adults would take a ride in a fully self-driving car.

Step-by-step explanation:

From the question we are told that

     The sample size is  n =  500

     The sample proportion is  \r  p  =  0.57

     The  95% confidence interval is (0.5266, 0.6134)

Looking at the 95% confidence level interval we see that the sample proportion is within the interval and given that the confidence interval limits are both greater than 50%, we can reasonably conclude that more than half of all adults would take a ride in a fully self-driving car.

4 0
3 years ago
Please help!!!
labwork [276]
Y=5x+7 is the answer i think
6 0
3 years ago
Complete the square x​^2​​+2x+1
IrinaK [193]
(x+1)^2

hope it helps!
8 0
3 years ago
Which number should be added to the expression x^2-8x to change it into a perfect square trinomial?
vovangra [49]

The perfect square (x-a)^2 can be expanded as follows:

(x-a)^2=x^2-2ax+a^2

So, we have to think of the term -8x as -2ax, which implies a=4.

Thus, we have to add a^2, i.e. 16, to complete the perfect square:

(x-4)^2 = x^2-8x+16

3 0
3 years ago
16: 2r - 6 =22 <br> 17: 3g + 7 = 31<br> 18: 3f - 7 = 38
cricket20 [7]
<span>16: 2r - 6 =22 
2r = 22  + 6
2r = 28
r =28/2
r = 14

17: 3g + 7 = 31
3g = 31 - 7
3g = 24
g = 24/3
g= 8

18: 3f - 7 = 38
3f = 38 +7
3f = 45
f = 45/3
f = 15</span>
8 0
3 years ago
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