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
erastovalidia [21]
2 years ago
12

PLEASE SOLVE FOR BOTH THE STARS AND SQUARES! BRAINLIEST AND 5 STARS! URGENT

Mathematics
2 answers:
MAVERICK [17]2 years ago
8 0

Answer:

1 to 2

1:2

1/2

Step-by-step explanation:

Oliga [24]2 years ago
7 0

Answer:

Ze anser is 1:3 (づ。◕‿‿◕。)づ

Step-by-step explanation:  

You might be interested in
What is the equation in point slope form of the line that passes through the points (-3,5) and (2,-3)?
SOVA2 [1]

Answer:

y - (-3) = -8/5 (x - 2)

Step-by-step explanation:

-3 -5 = -8

2 - (-3) = 5

slope = -8/5

y - (-3) = -8/5 (x - 2)


3 0
3 years ago
Find the value of y.<br> 24<br> 18<br> у<br> Answer:
stiv31 [10]

Answer:

12

Step-by-step explanation:

It has been going down by 6 because 24-6=18 and 18-6=12.

6 0
3 years ago
Jensen Tire &amp; Auto is in the process of deciding whether to purchase a maintenance contract for its new computer wheel align
sasho [114]

Answer:

Step-by-step explanation:

Hello!

The given data corresponds to the variables

Y:  Annual Maintenance  Expense ($100s)

X: Weekly Usage  (hours)

n= 10

∑X= 253; ∑X²= 7347; \frac{}{X}= ∑X/n= 253/10= 25.3 Hours

∑Y= 346.50; ∑Y²= 13010.75; \frac{}{Y}= ∑Y/n= 346.50/10= 34.65 $100s

∑XY= 9668.5

a)

To estimate the slope and y-intercept you have to apply the following formulas:

b= \frac{sumXY-\frac{(sumX)(sumY)}{n} }{sumX^2-\frac{(sumX)^2}{n} } = \frac{9668.5-\frac{253*346.5}{10} }{7347-\frac{(253)^2}{10} }= 0.95

a= \frac{}{Y} -b\frac{}{X} = 34.65-0.95*25.3= 10.53

^Y= a + bX

^Y= 10.53 + 0.95X

b)

H₀: β = 0

H₁: β ≠ 0

α:0.05

F= \frac{MS_{Reg}}{MS_{Error}} ~~F_{Df_{Reg}; Df_{Error}}

F= 47.62

p-value: 0.0001

To decide using the p-value you have to compare it against the level of significance:

If p-value ≤ α, reject the null hypothesis.

If p-value > α, do not reject the null hypothesis.

The decision is to reject the null hypothesis.

At a 5% significance level you can conclude that the average annual maintenance expense of the computer wheel alignment and balancing machine is modified when the weekly usage increases one hour.

b= 0.95 $100s/hours is the variation of the estimated average annual maintenance expense of the computer wheel alignment and balancing machine is modified when the weekly usage increases one hour.

a= 10.53 $ 100s is the value of the average annual maintenance expense of the computer wheel alignment and balancing machine when the weekly usage is zero.

c)

The value that determines the % of the variability of the dependent variable that is explained by the response variable is the coefficient of determination. You can calculate it manually using the formula:

R^2 = \frac{b^2[sumX^2-\frac{(sumX)^2}{n} ]}{[sumY^2-\frac{(sumY)^2}{n} ]} = \frac{0.95^2[7347-\frac{(253)^2}{10} ]}{[13010.75-\frac{(346.50)^2}{10} ]} = 0.86

This means that 86% of the variability of the annual maintenance expense of the computer wheel alignment and balancing machine is explained by the weekly usage under the estimated model ^Y= 10.53 + 0.95X

d)

Without usage, you'd expect the annual maintenance expense to be $1053

If used 100 hours weekly the expected maintenance expense will be 10.53+0.95*100= 105.53 $100s⇒ $10553

If used 1000 hours weekly the expected maintenance expense will be $96053

It is recommendable to purchase the contract only if the weekly usage of the computer is greater than 100 hours weekly.

4 0
2 years ago
Find slope of the graph 9x-3y=15
LekaFEV [45]
<h3><u>Explanation</u></h3>
  • Convert the equation into slope-intercept form.

y = mx + b

where m = slope and b = y-intercept.

What we have to do is to make the y-term as the subject of equation.

9x - 3y = 15 \\ 9x - 15 = 3y \\  \frac{9x - 15}{3}  = y

  • Simplify

\frac{9x}{3}  -  \frac{15}{3}  = y \\ 3x - 5 = y  \\ y = 3x - 5

From y = mx+b, the slope is 3.

<h3><u>Answer</u></h3>

\large \boxed {slope = 3}

4 0
3 years ago
The drama club had a car wash as a fundraiser where they washed a total of 41 vehicles. Members washed
Dimas [21]

Answer:

<em>Solution: (26,15) </em>

<em> </em>

<em>Cars washed=26 </em>

<em> </em>

<em>Trucks washed=15</em>

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • Fine the slope of the line through each pair of points . (-8,-20),(5,2)
    15·2 answers
  • Write a function rule for "The output is four more than the input." Let x represent the input and let y represent the output.
    14·1 answer
  • On the graph of the equation 3x + 2y = 18, what is the value of the y-intercept? (1 point) a −9 b −6 c 6 d 9
    8·1 answer
  • Evaluate c−2c-2 c−2 when c=7c=7 c=7 .
    14·2 answers
  • Find the slope of the line through (3, 7) and (–1, 4)
    7·2 answers
  • Pls help with 19 its due in 15
    7·2 answers
  • A. Explain how you know that Triangle ABC is similar to Triangle A'B'C'. (use complete sentences and show all your work to get f
    10·1 answer
  • Which is the coefficient of the expression - 3a²c-7?<br> -7<br> -3<br> 2<br> 3
    12·2 answers
  • What is 3.64 as a mixed number in its simplified form
    6·2 answers
  • PLZZ HELP?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!