1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lelechka [254]
3 years ago
13

Can someone please help me

Mathematics
1 answer:
Natalija [7]3 years ago
3 0
B. 

Using this will give you proper representations in similar triangles. 
You might be interested in
What is the next term in the​ sequence?
just olya [345]

if the sequence goes on without any changes

it will be d+8a

4 0
2 years ago
Read 2 more answers
The cost for 5 adults and 3 children to attend a show is $210. ( /5)
liraira [26]

Answer: i. Cost of adult ticket = $ 30

ii.  Cost of child ticket = $20

Step-by-step explanation:

Define variables:

Let x= cost of 1 adult tickets , y= cost of 1 child tickets.

Form linear equations:

5x+3y = 210      (i)

2x+5y= 160  (ii)

Multiply (i) by 2 and (ii) by 5

10x +6y = 420       (iii)

10x+25y = 800        (iv)

Eliminate (iii) from (iv)

19y = 380

⇒ y= 20

Put this in (i)

5x+3(20)=210\Rightarrow\ 5x+60 = 210\\\\\Rightarrow\ 5x=150\\\\\Rightarrow\ x=30

Hence, Cost of adult ticket = $ 30 and Cost of child ticket = $20

4 0
3 years ago
12 and 13 please I’m giving 71 points
Pavlova-9 [17]

Answers and Step-by-step explanation:

12: The 5s are worth a lot more than the 2s. The 5s are worth fifty thousand and five thousand whereas the 2s are only worth two hundred and twenty.

13: She needs 4 forks (2000 - 1996 = 4)

    She needs 255 knives (2000 - 1745 = 255)

    She has 226 extra spoons ( 2116 - 2000 =  116)

5 0
3 years ago
Read 2 more answers
You are constructing a tangent line from a point outside a given circle to the circle. You have drawn the circle, a point outsid
sveta [45]
Yikes I might go with C. 
6 0
3 years ago
Read 2 more answers
Regression analysis is a statistical procedure for developing a mathematical equation that describes how
Mila [183]

Answer: Regression analysis is a statistical procedure for developing a mathematical equation that describes how the dependent variable (y) is related to the independent variable(x).

Step-by-step explanation:

REGRESSION ANALYSIS

Regression analysis is a statistical method used to determine the relationship between two or more variables of interest way. It is a way of sorting out variables which have impact mathematically. It is a more sophisticated way of examining the relationship between two (or more) variables than is correlation. The major differences between correlation and regression are:

Regression can investigate the relationships between two or more variables.

It determines the direction of causality, from the explanatory variable (or variables) to the dependent variable.

The impact of each explanatory variable on the dependent variable is measured.

Regression analysis explains this causal relationship by fitting a straight line drawn through the data, which best summarises them. It is sometimes called ‘the line of best fit’ for this reason.

Regression analysis gives answers to such questions as:

Which factors matters most?

Which factors can be ignored?

How do these factors interact with each other?

Does the growth rate influence a country’s birth rate?

If the growth rate increases, by how much might a country’s birth rate be expected to fall?

Are other variables important in determining the birth rate?

In regression analysis, factors are called Variables. There are two (2) types of variables.

1. Dependent variables: This is the main factor you are trying to predict

2. Independent variables: This is the factor you suspect has an impact on the dependent variable.

The equation of the sample regression line may be written as

Zi = a + bXi

Where;

Zi is the predicted value of Y for observation

Xi is the value of the explanatory variable for observation

a is the bare fixed coefficients to be estimated. It measures the intercept of the regression line on the Y-axis

b measures its slope.

The regression analysis equation describes how the dependent variable (y) is related to the independent variable(x). It allows you to predict the outcome of a relatively small amount of error.

3 0
2 years ago
Other questions:
  • A new patio will be an irregular hexagon. The patio will have two long parallel sides and an area of 360 square feet. The area o
    13·2 answers
  • Please help. Sara drives 72 miles on 3.2 gallons of gas. She uses this information to calculate how many miles per gallon she ca
    7·2 answers
  • I need to know this question pls help someone​
    10·2 answers
  • PLEASE HELP ASAP (I'LL GIVE BRAINLY!!) How is an”or” inequality different from an “and” inequality? How are they similar? Ty! &l
    6·1 answer
  • 1 and 1/3 mineus 3/4
    5·2 answers
  • Help .................................................
    7·2 answers
  • aiko is biulding a tower out of paper she starts by making 2 congruent circular bases she then makes 1 curved surface sor the bo
    13·1 answer
  • What Is y=13-x slope and y intercrept
    7·1 answer
  • ANSWER ASAP!! DUE SOON! ONLY ANSWER IF YOU ARE CORRECT I CANNOT GET THIS WRONG!?
    14·2 answers
  • What statement is NOT true comparing the two<br> box and whisker plots?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!