Which of the following points would fall on the line produced by the point-slope form equation y - 8 = 4/5(x

Steve spent a total of $43.78 to buy some school supplies that would be needed for the year. He spent $27.86 for a backpack, and

Nataly_w [17]

You can multiply the price of the journals with the answer choices and add that amount with how much his backpack cost and that'll give you your final cost.

<h2>Answer: C. 4 notebooks</h2>

5 0

2 years ago

A sample of blood pressure measurements is taken for a group of adults, and those values (mm Hg) are listed below. The values

Slav-nsk [51]

Answer:

Systolic on right

$\hat{CV} =\frac{18.68}{127.5}=0.147$

Systolic on left

$\hat{CV} =\frac{12.65}{74.2}=0.170$

So for this case we have more variation for the data of systolic on left compared to the data systolic on right but the difference is not big since 0.170-0.147 = 0.023.

Step-by-step explanation:

Assuming the following data:

Systolic (#'s on right) Diastolic (#'s on left)

117; 80

126; 77

158; 76

96; 51

157; 90

122; 89

116; 60

134; 64

127; 72

122; 83

The coefficient of variation is defined as " a statistical measure of the dispersion of data points in a data series around the mean" and is defined as:

$CV= \frac{\sigma}{\mu}$

And the best estimator is $\hat {CV} =\frac{s}{\bar x}$

Systolic on right

We can calculate the mean and deviation with the following formulas:

[te]\bar x = \frac{\sum_{i=1}^n X_i}{n}[/tex]

$s= \frac{\sum_{i=1}^n (x_i -\bar X)^2}{n-1}$

For this case we have the following values:

$\bar x = 127.5, s= 18.68$

So then the coeffcient of variation is given by:

$\hat{CV} =\frac{18.68}{127.5}=0.147$

Systolic on left

For this case we have the following values:

$\bar x = 74.2 s= 12.65$

So then the coeffcient of variation is given by:

$\hat{CV} =\frac{12.65}{74.2}=0.170$

So for this case we have more variation for the data of systolic on left compared to the data systolic on right but the difference is not big since 0.170-0.147 = 0.023.

4 0

2 years ago

Pls help me on this question

Maksim231197 [3]

The answer is selections 1 and 4

7 0

2 years ago

There are two cell phone plans available from Cells Phones R Us company. Plan A charges $35 a month plus $0.05 for every text me

Yuri [45]

if PLAN A is cheaper than PLAN B then,

P (A) < P (B)

30+0.01t < 20+0.05t (subtract 0.05t from both sides)

29.95-0.04t < 19.95 (subtract 29.95 from both sides)

-0.04t < -10 (divide both sides by -0.04)

t > 250

So plan A is cheaper than plan B when you send more than 250 texts.

Hope it helps.

5 0

2 years ago

Which of the following is the solution to the system of linear equations x=2y + 5 x/3-y=4/3

Alex73 [517]

Answer:

(7, 1)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
Equality Properties

Algebra I

Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define systems

x = 2y + 5

x/3 - y = 4/3

Step 2: Solve for y

Substitute: (2y + 5)/3 - y = 4/3
Multiply 3 on both sides: 2y + 5 - 3y = 4
Combine like terms: -y + 5 = 4
Isolate y term: -y = -1
Isolate y: y = 1

Step 3: Solve for x

Define: x = 2y + 5
Substitute: x = 2(1) + 5
Multiply: x = 2 + 5
Add: x = 7

And we have our final answer!

3 0

1 year ago

Read 2 more answers

Which of the following points would fall on the line produced by the point-slope form equation y - 8 = 4/5(x - 1) when graphed​

Which of the following points would fall on the line produced by the point-slope form equation y - 8 = 4/5(x - 1) when graphed