Number of adults = 12
Number of children = 17
Step-by-step explanation:
Step 1:
Let a be the number of adults and c be the number of children
Given that the total admission fees paid is $222
Cost for adults is $10 and cost for children is $6
So we have,
10 a + 6 c = 222
Step 2 :
Total people attending is 29
So, a + c = 29
=> a = 29 - c
Step 3 :
Substituting the value for a in the equation in step 1 ,we have
10( 29-c) + 6 c = 222
290 - 10 c + 6 c = 222
-4 c = 222-290 = -68
=> c = -68/-4 = 17
substituting this value of c in the equation in step 2 we have
a = 29 - 17 = 12
So we have 12 adults and 17 children visiting the zoo.
The domain of the function g(x) = –⌊x⌋ + 3 is (a) {x| x is a real number}
<h3>How to determine the domain?</h3>
The function is given as
g(x) = –⌊x⌋ + 3
The above is a step function, and the domain is the set of input values it can accept
Step functions of the given form can accept any real value of x
Hence, the domain of the function g(x) = –⌊x⌋ + 3 is (a) {x| x is a real number}
Read more about domain at:
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<u>Complete question</u>
The graph of the step function g(x) = –⌊x⌋ + 3 is shown. What is the domain of g(x)? {x| x is a real number} {x| x is an integer} {x| –2 ≤ x < 5} {x| –1 ≤ x ≤ 5}
The first one can be written as a fraction because it is a repeating decimal.
The second one can be written as a fraction because it is a repeating decimal.
The third one can not be written as a fraction since it is nether terminating nor repeating.
The last one can be written as a fraction since it is a terminating decimal.
Answer:
Check the answers to the questions below
Step-by-step explanation:
a) If is the average learning rate of the 6th graders without background noise level and is the average learning rate of the 6th graders with background noise level
The Null Hypothesis is that the learning rate of the 6th graders is not affected by the background noise level.
Null hypothesis,
b) The Alternative Hypothesis is that the learning rate of the 6th graders is affected by the background noise level.
Alternative hypothesis,
<u>c) Assumptions that must be met about the data before she can correctly use independent t-test</u>
There must be random selection of the 6th graders
That the two groups are normally similar in their learning abilities
The division of students into the two groups should be at random
d) She has to make these assumptions to prevent bias and inaccuracy of results. If these assumptions are not made, the outcome of the experiment may not reflect the true effect of background noise on the learning of the 6th graders.
She can still get accurate results if she include some bias in the selection to prove a particular result.
Answer:
20,000
Explanation:
Mass of the saturn = 5.683 × 10^26
Mass of the mercury = 3.285 × 10^23
Now divide them
(5.683 × 10^26)/3.285×10^23
= 18.668.655
so approximately
it is 20,000 times greater than mercury.