Algebra 2 semester 2 activity 4.1.1

A retailer purchased an electric bicycle for Rs. 35000 and sold at a profit of 16% to a customer. How much did the customer pay

motikmotik

Answer:

Rs. 45,150

Step-by-step explanation:

Given data

Cost =Rs. 35000

Profit=16%

VAT=13%

Let us find the profit to be added

=16/100*35000

=0.16*35000

=Rs. 5,600

Let us find the VAT to be added

=13/100*35000

=0.13*35000

=Rs. 4,550

Hence the cost of the bike is

=4,550+ 5,600+ 35000

=Rs. 45,150

8 0

3 years ago

The data show systolic and diastolic blood pressure of certain people. Find the regression equation, letting the first variable

MakcuM [25]

Full Question:

The data show systolic and diastolic blood pressure of certain people. Find the regression equation, letting the first variable be the independent (x) variable. Find the best predicted diastolic pressure for a person with a systolic reading of 113. use a significance level of 0.05.

Systolic| 150 129 142 112 134 122 126 120

Diastolic| 88 96 106 80 98 63 95 64

a. What is the regression equation?

^y = __ + __x (Round to two decimal places as needed.)

b. What is the best predicted value?

^y is about __ (Round to one decimal place as needed.)

Answer:

A. yhat = a + bx = -10.64 + 0.75x

B. 74.0

Step-by-step explanation:

A. To find the regression equation here, we apply the formulas and then apply it to find the value of y given value of x:

calculate xbar and ybar which is the average of the variables:

Where n(number of values in x or y)=8

xbar = sum of x/n = 129.375

ybar = sum of y/n = 86.25

to calculate b

b= [Sum x^2 * Sum y - Sum x * Sum x*y] / [N*Sum x^2 - (Sum x)^2]

b = 0.74891

To calculate a

a = ybar - b * xbar = -10.64023

Regression equation:

y=mx+b= -10.64 + 0.75x

B. given x = 113,

y = -10.64023 + 0.74891 * 113

y= 74.0

5 0

3 years ago

Can someone please help me with this? My mind is blank after doing a lot of questions.

Annette [7]

Answer:

6 Hours

Step-by-step explanation:

No.of leaflets---no.of people---work hours

1000 ————. 4. - — — — — — — 5

1500 — — — —5 — — — — — ,— —?

If work increase, no.of people needed more

So, the required ratio is 1500/1000

If work men increase, no of hours decrease

So, the required ratio is 4/5

(1500/1000)× (4/5)×5 = 6

No.of hours required to distribute 1500 leaflets by 5 people = 6 hours

3 0

2 years ago

PLEASE HELP WITH QUIZ!!!!!!!! 25 POINTS!!!!!!!!!!!!!

MAVERICK [17]

Answer:

1. The correct options are 2 and 4.

2. The measure of angle 6 is 60°.

Step-by-step explanation:

1.

It is given that a∥b , and c is not parallel to a or b. So, we can not establish any relationship among the angles on the line a,b and angles on the line c.

If a traversal line intersect two parallel line, then corresponding angles, alternate exterior angle and alternate interior angles are equal.

$\angle 2=\angle 6=\angle 3=\angle 7$

$\angle 1=\angle 5=\angle 4=\angle 8$

Therefore correct options are 2 and 4.

2.

It is given that AB∥CD and m∠3=120°.

Statements Reasons

m∥nm∠1=120° Given

∠5≅∠1 Corresponding angles are equal

m∠5=m∠1 Angle Congruence Postulate

m∠5=120° Substitution Property of Equality

m∠6+m∠5=180° Supplementary angle property

m∠6+120°=180° Substitution Property of Equality

m∠6=60° Subtraction Property of Equality

Therefore the measure of angle 6 is 60°.

8 0

4 years ago

Read 2 more answers

The base of a parallelogram and a triangle are the same length, and both figures have the same area. What is true about height o

BartSMP [9]

If you divide the area from the length your answer is the height of the triangle.

5 0

3 years ago