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just olya [345]
3 years ago
13

If a = b and b = c, which statement must be true? A. a=c B. c = c.-a=c D. -a = -6

Mathematics
2 answers:
Sindrei [870]3 years ago
8 0
The answer is d -a = -6
nexus9112 [7]3 years ago
7 0
This is an example of the transitive rule, which states that if a = b and b = c, then a = c. Therefore, statement A is true.
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(20 points!) Find the median, mode, range, Q1, Q2, Q3, IQR and outliers, if any, of the data set. Round to the nearest tenth of
shtirl [24]

Answer:

1:49

2:62

Step-by-step explanation:

it mightbe wrong idk

3 0
3 years ago
A whole number is squared. The result is between 200 and 260. The number is between:
Anton [14]

Answer:

B

Step-by-step explanation:

b is correct

7 0
2 years ago
The heights (in inches) and pulse rates (in beats per minute) for a sample of 40 women were measured. Using technology with the
Viktor [21]

Answer:

There is not sufficient evidence  to support the claim that there is a linear correlation between the heights and pulse rates of women

Step-by-step explanation:

The correlation coefficient between the variables h(height in inches) and pulse rates (in beats per minute) is 0.202

Sample size n=40

Level of significane alpha = 0.01

Create null and alternate hypothesis as:

H0: r=0

Ha: r not equal 0

(Two tailed test at 1% significance level)

Sample r = 0.202

r difference = 0.202

test statistic t = \frac{r\sqrt{n-2} }{\sqrt{1-r^2} } \\=\frac{0.202(\sqrt{38} )}{\sqrt{0.9592} } \\=\frac{1.25}{0.9794} \\=1.271

df =n-2 =38

t critical value for 0.01 and df =38 is 2.704

Since our test statistic lies below 2.704, we accept null hypothesis

There is not sufficient evidence  to support the claim that there is a linear correlation between the heights and pulse rates of women

7 0
3 years ago
Item 11 The height of the house is 26 feet. What is the height <br> x of each story?
Black_prince [1.1K]
26/ by the number of stories
4 0
3 years ago
Pleaseeee helppp!!!
tigry1 [53]

Answer:

(a) Brenda saved $23.50.

(b) The rate at which Brenda is saving money is<u> 0.5 dollars per day</u>.

(c) money saved on J(14) is <u>$27.</u>

Step-by-step explanation:

Given:

Initial amount in the jar is, J(0)=\$20

Amount in the jar after a week or 7 days is, J(7)=\$23.50

Brenda is saving money at a linear rate.

(a)

Now, money at the end of the week is the total money saved by Brenda.

Therefore, total money saved by Brenda is equal to the money saved at the end of the week. So,

Total money saved by Brenda = J(7)=\$23.50

(b)

The rate of change of a function is given as:

Rate=\frac{f(x_2)-f(x_1)}{x_2-x_1}

Here, x_1=0,x_2=7, f(x_1)=J(0),f(x_2)=J(7)

Therefore, the rate at which Brenda saves money is given as:

Rate=\frac{J(7)-J(0)}{7-0}\\Rate=\frac{23.50-20}{7}\\Rate=\frac{3.5}{7}=0.5\ dollars/day

Therefore, the rate at which Brenda is saving money is<u> </u>0.5 dollars per day.

(c)

A linear function is of the form f(x)=mx+b, where 'm' is the rate and 'b' is the initial value of the function.

Therefore, the linear function for the money saved by Brenda can be written as:

J(x)=(Rate)x+J(0)\\J(x)=0.5x+20

Now, J(14) is given by plugging in 14 for 'x' in the above expression. So,

J(14)=0.5\times 14+20\\J(14)=7+20=\$27

Therefore, money saved on J(14) is $27.

4 0
3 years ago
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