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
fredd [130]
1 year ago
13

PLEASE HELP QUICK

Mathematics
1 answer:
aivan3 [116]1 year ago
6 0

Answer: The solution of this system of equations is the point of cut of these line.

Point of cut is when x is close to -1, and y is close to 0; therefore the best estimate of the solution would be:

A) (-1,0)

We can check it out our answer solving the system of equations:

-3x+y=2

-4x+7y=1

We solve this system by substitution method.

-3x+y=2   ⇒  y=2+3x

-4x+7(2+3x)=1

-4x+14+21x=1

-4x+21x=1-14

17x=-13

x=-13/17=-0.764....≈-1

y=2+3x

y=2+3(-0.764)

y=2-2.292

y=-0.292≈0

The approximate solution will be (-1,0)

You might be interested in
Sung loo worked 54 hours during a special sale at the store. 10 hours was time and a half, and 4 hours were at double time. Her
DanielleElmas [232]

Answer:

$432.18

Step-by-step explanation:

Time and a half = 50% more pay rate / 1.5*6.86 = $10.29 per hour

Double time = 2*6.86 = $13.72 per hour

Rest of the time => At regular rate

Total Amount = 10(10.29) + 4(13.72) + (54 - 10 - 4)(6.86)

                       = 10(10.29) + 4(13.72) + (40)(6.86)

                       = $ 432.18

6 0
3 years ago
Read 2 more answers
A researcher reports a 98% confidence interval for the proportion of Drosophila in a population with mutation Adh-F to be [0.34,
Fantom [35]

Answer:

0.34 \leq p \leq 0.38

For this case we can conclude that with 98% of confidence the true proportion of Drosophila in a population would be between 0.34 and 0.38.

But that doesn't means that we have 98% of PROBABILITY that the true proportion would be between 0.34 and 0.38, because we are constructing a confidence interval with sample data and we can't analyze this using probability.

Then the best answer is:

2. False

Step-by-step explanation:

For this case we have a confidence interval for the proportion of Drosophila in a population with mutation Adh-F to be given by:

0.34 \leq p \leq 0.38

For this case we can conclude that with 98% of confidence the true proportion of Drosophila in a population would be between 0.34 and 0.38.

But that doesn't means that we have 98% of PROBABILITY that the true proportion would be between 0.34 and 0.38, because we are constructing a confidence interval with sample data and we can't analyze this using probability.

Then the best answer is:

2. False

3 0
4 years ago
1. Is the function below linear or non linear? y = -8X2 + 9??​
romanna [79]
Linear because it’s in y=mx+b form
3 0
3 years ago
DetermIne the inverse function of f(x) = 1/3 + 6 <br> Please show work
yawa3891 [41]

Answer:

f(x)⁻¹ = 3x - 18

Step-by-step explanation:

I'm going to assume that 1/3 is the coefficient of the x.

f(x) = 1/3x + 6

y = 1/3x + 6

x = 1/3y + 6

x - 6 = 1/3y

3x - 18 = y

f(x)⁻¹ = 3x - 18

8 0
3 years ago
Write an equation of the line in slope-intercept form.<br> y =
SVETLANKA909090 [29]
The slope is - 4 / 3

Therefore the equation is

y = - 4x / 3
4 0
3 years ago
Other questions:
  • If one of the angles formed by the perpendicular lines has a measure of 4x - 10, what is the value of x?
    5·1 answer
  • Find (12y-1) + (-10y+7)
    5·1 answer
  • at he grand opening of a new store every 9th customer will receive a balloon and every 12th customer will receive a $10 gift cer
    7·1 answer
  • Which of the following data would best be displayed on a scatter plot? A. Number of babies born at several different hospitals B
    8·1 answer
  • 4 is 1/4 of what number? Plzzzzzz help
    11·1 answer
  • Ophia earned $2,000 last month. She used 35 of her earnings to pay her bills. With the remaining money, she bought two shirts fo
    9·1 answer
  • A druggist has two mixtures of a certain chemical and water, one containing 10% of the chemical and the other containing 40% of
    8·2 answers
  • Using the equation y = 2x – 3, what would the input need to be for an output of 7?
    7·2 answers
  • W what is the volume of this cube?
    8·2 answers
  • Use the distributive property to find the equivalent expression.<br> 10(8 + 3h) =
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!