subject

Mathematics, 21.04.2020 19:22 Michael321

What’s the answer for this question ?!

What’s the answer for this question ?!

ansver

Answers: 3

Show answers

Answers

ansver

Answer from: Quest

the system of inequity is

$y\leq -x+4$

$3y> x$

step-by-step explanation:

from the given graph it is noticed that we have two related lines. one is solid and another is dashed.

if a line passing through two points, then the equation of line is

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

the solid line passing through the points (0,4) and (4,0).

$y-4=\frac{0-4}{4-0}(x-0)$

$y=-x+4$

the related equation of solid line is $y=-x+4$ .

similarly, find the related equation of dashed line. the dashed liune passing through the points (0,0) and (3,1).

$y-0=\frac{0-1}{3-0}(x-0)$

$3y=x$

the related equation of dashed line is $3y=x$

from the given graph it is noticed that the point (0,1) lies on the shaded region, therefore the point (0,1) must be satisfied by the related equations.

check the related equations by the point (0,1).

$1=-0+4$

$1=4$

this statement is true if the sign of inequality is < instead of equality. since it is an solid line therefore the sign of inequality will be $\leq$ . the required inequality is

$y\leq -x+4$

similarly, check the second related equation.

$3(1)=0$

it is a dashed line, so this statement is true if the sign of inequality is > . the required inequality is

$3y> x$

15 points write a system of inequalities to represent the shaded portion of the graph

ansver

Answer from: Quest

Volume is length times width times height so
20 times 8 times 30 which is 4,800
surface area is ph (p is perimeter of base), h is height.
so perimeter would be length+length+width+width so 20+20+8+8 which is 56. so multiply 56 times 30 which is 1680. hope this !

ansver

Answer from: Quest

answer-

the equation that models this pattern is $y=32000(0.5)^x$

solution-

a researcher placed a petri dish with 32,000 bacterial cells. one hour after being placed in the vacuum chamber, the number of cells in the petri dish had halved. another hour later, the number of cells had again halved.

this can be represented as exponential decreasing function,

$y=a(1 - r)^x$

where,

a = starting amount = 32000r = rate = 50% = 0.5 as the sample becomes halved in each hour x = hours

putting the values,

$\rightarrow y=32000(1 - 0.5)^x$

$\rightarrow y=32000(0.5)^x$

y-intercept means, where x=0, so

$\rightarrow y=32000(0.5)^0\\\\\rightarrow y=32000\times 1=32000$

the coordinate of this poin will be (0, 32000)

this means when x=0 or at the starting of the research, the number of bacteria cells was 32000.

after 3 hours, number of bacteria cells will be,

$\rightarrow y=32000(0.5)^3$

$\rightarrow y=32000\times 0.125$

$\rightarrow y=4000$

the coordinate of this point will be (3, 4000)

ansver

Answer from: Quest

1is the value of x.

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 14:30, nunnielangley0

The contents of 3838 cans of coke have a mean of x¯¯¯=12.15x¯=12.15. assume the contents of cans of coke have a normal distribution with standard deviation of σ=0.12.σ=0.12. find the value of the test statistic zz for the claim that the population mean is μ=12.μ=12.

Answers: 1

Mathematics, 21.06.2019 15:40, natalie4085

Use properties to rewrite the given equation. which equations have the same solution as 2.3p – 10.1 = 6.5p – 4 – 0.01p?

Answers: 2

Mathematics, 21.06.2019 17:00, edjiejwi

Determine the fraction of total interest owed. after the fourth month of a 12-month loan: the numerator is: {(n + ) + (n + ) + (n + ) + (n + )} = , and the denominator is: {(n) + (n + 1) + + (n + )} = . therefore, the fraction is numerator/denominator (to the nearest tenth) =

Answers: 1

Mathematics, 21.06.2019 18:00, evanwall91

Need on this geometry question. explain how you did it.

Answers: 2

You know the right answer?

What’s the answer for this question ?!
...

Questions in other subjects:

Konu

History, 11.01.2021 15:30

Where the aims of the League of Nations achievable?...

Konu

Chemistry, 11.01.2021 15:30

Draw a Lewis structure for ketene, C2H2O , which has a carbon‑carbon double bond. Include all hydrogen atoms and show all unshared electron pairs. None of the atoms bears a formal...

Konu

Mathematics, 11.01.2021 15:30

Use used to to write five sentences about major changes in your life.id Heritage Publishe1....

Konu

Chemistry, 11.01.2021 15:30

How do you separate a mixture of sodium chloride and potassium trioxonitrateV...

Konu

Business, 11.01.2021 15:30

Item1 1 points my workCheck My Work button is now enabled1Item 1 Lanni Products is a start-up computer software development firm. It currently owns computer equipment worth $30,00...

Konu

Mathematics, 11.01.2021 15:30

In your first peer posts, pick another confidence level, i. e. 90%, 99%, 97%, any other confidence level is fine. Have fun and be creative with it and calculate another T-confidenc...

Konu

Business, 11.01.2021 15:30

Compute the direct material costs for the year. B.Compute the indirect labor costs for the year. C.Compute the total factory overhead costs for the year. D.Compute the cost of good...

Konu

Medicine, 11.01.2021 15:30

A 77-year-old woman was cooking in the kitchen when she collapsed onto the floor. Her daughter called an ambulance and the woman was taken to the emergency room. She had suffered a...

Konu

Social Studies, 11.01.2021 15:30

Dillard is careful to place these opposing descriptions (of the natural and man made) side-by-side. How does this juxtaposition fit with or challenge what we have already read...

Konu

English, 11.01.2021 15:30

Think about this theme, which sometimes appears in literary works: "Work hard, and you will fulfill your dreams." On what philosophical assumption, or basic belief about life, is t...

More questions: Mathematics Another questions