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Zanzabum
3 years ago
5

Can you give me the answer? Ill give brainliest for the right answer

Mathematics
2 answers:
sveta [45]3 years ago
7 0

Answer:

A. -1

Step-by-step explanation:

ΔY/ΔX= 1/-1 =-1

Serga [27]3 years ago
3 0

Answer:

I believe the answer is b

Step-by-step explanation:

I might be wrong

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8a. Brian has $24 worth if pizzas delivered to his house for a $3 delivery fee.
dsp73

Answer:

32.94

Step-by-step explanation:

24(.22) [Both Sales tax and tip.] = $5.28 Add to the 27. You get $32.28

Or, you could be estimating based on the delivery fee too. Which the would be this:

27(.22) = 5.94 + 27 = 32.94

5 0
3 years ago
What is the range? The range is __
bearhunter [10]

Answer:

8

Step-by-step explanation:

Take the biggest value and smallest value, and subtract the smallest value from the biggest value:

9-1=8

3 0
2 years ago
Read 2 more answers
2. “The inverse of every function must be a function itself.” State whether you agree or disagree with the statement providing e
Jet001 [13]
Technically this is not necessarily true for all. A function has each input mapped to one output, therefore there can be two inputs that have the same output. However, when inverted, the input will have two outputs, which is not a function. For example with (1,3) (2,3) (3,4) (4,5) this is a function but switched (3,1) (3,2) ! Two inputs have the same output, which is not a function!
3 0
3 years ago
Read 2 more answers
To increase the value of estimated Cohen's d, a researcher increases the sample size. Will this change the value of d?
tatyana61 [14]

Answer:

a. A) Yes; as sample size increases, effect size increases.

b. A) The critical value increases.

Step-by-step explanation:

a.

If all possible samples of size N are drawn from a finite population, Np, without replacement, and the standard deviation of the mean values of the sampling distribution of means is determined then:

σx =d  √N

d = σx . √N

d ∞ N

from this, we can say d is directly proportional to √N

where σx is the standard deviation of the sampling distribution of  means and d is the standard deviation of the population’. The standard deviation of a sampling distribution of mean values is called the standard error of the means,

therefore, we can conclude that:

A) Yes; as sample size increases, effect size increases.

b.

In this estimate, tc is called the confidence coefficient for small samples,  d is the standard deviation of the sample, x is the mean value of the sample and N is the number of members in the sample.

When determining the t-value, given by

t =( (x−µ) /s) * \sqrt{N-1}

it is necessary to know the sample parameters x and s and the population parameter µ. x and s can be calculated for the sample, but usually an estimate has to be made of the population mean µ, based on the sample mean value.

from the above equation it can be deduced that t value is determined with the sample size, and as the sample size increases

A) The critical value increases.

3 0
3 years ago
Find the circumference and area of a circle with a diameter of 10 inches. Leave your answers in terms of pi. (4 points)
il63 [147K]
D=10 a=5
5×5×π=25π
a=25π
2×5×π=10π
c=10π

c. C = 10π A = 25π
3 0
3 years ago
Read 2 more answers
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