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
larisa86 [58]
4 years ago
6

Please please help me with this

Mathematics
1 answer:
Olegator [25]4 years ago
7 0

Answer:

Step-by-step explanation:

First find the equations of the lines, then fill in the proper inequality sign.  The upper line has a y-intercept of 1 and a slope of 1/2, so the equation, in slope-intercept form is

y=\frac{1}{2}x+1

Since the shading is below the line, the inequality sign is less than or equal to.  The inequality, then, is

y\leq \frac{1}{2}x+1

But the solutions are in standard form, so let's do that:

-\frac{1}{2}x+y\leq  1

AND they do not like to lead with negatives, apparently, so let's change the signs and the way the inequality is facing, as well:

\frac{1}{2}x-y\geq  -1

Let's do the sae with the lower line.  The equation, in slope-intercept form is

y=\frac{3}{2}x-3 since the slope is 3/2 and the y-intercept is -3.  Now, since the shading is above the line, the inequality is greater than or equal to:

y\geq \frac{3}{2}x-3

In standard form:

-\frac{3}{2}x+y\geq  -3 and not leading with a negative gives us

\frac{3}{2}x-y\leq  3

Those 2 solutions are in choice B, I do believe.

You might be interested in
Someone help please. A sports website writing team tries to predict the number of visits to their site based on the number of po
dimaraw [331]

Answer:

The scatter plot shows a positive correlation because the number of website visit increases as the number of posts increases

Step-by-step explanation:

The scatter plot shows a positive correlation because the number of website visit increases as the number of posts increases

6 0
3 years ago
Which function does NOT represent exponential growth?
DedPeter [7]
When a decimal is multiplied to a power, it decreases exponentially. Therefore, y=3(0.2)^x does NOT represent exponential growth.
6 0
4 years ago
Read 2 more answers
5. Find the slope that intersects the x-axis at (1,3) and the y-axis at (4,7).
kotykmax [81]

For this case we have that by definition, the slope of a line is given by:

m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}}

Where:

(x_ {1}, y_ {1})\\(x_ {2}, y_ {2})

They are two points through which the line passes.

According to the statement we have two points:

(x_ {1}, y_ {1}) :( 1,3)\\(x_ {2}, y_ {2}) :( 4,7)

Substituting we have:

m = \frac {7-3} {4-1} = \frac {4} {3}

Thus, the slope of the line is:

\frac {4} {3}

Answer:

\frac {4} {3}

4 0
3 years ago
Dina discovered a water leak in her basement and called a plumber to fix and drain it. W(t) the amount of water in the basement
solniwko [45]

Answer:

x-intercept: The plumber drained all the water out after 9 hours.

Relative maximum or minimum: The amount of water reached 70 liters before the draining began.

Increasing or decreasing interval: Over the first 5 hours, the leak just got bigger and bigger.

Step-by-step explanation:

W(t) is the amount of water in the basement. When W(t) = 0, there is no water in the basement. When W(t) = 0, W(t) is a x-intercept. So, x-intercept: The plumber drained all the water out after 9 hours.

The water level gets to a relative maximum after about 5 hours, when the water reaches about 70 liters. So, relative maximum or minimum: The amount of water reached 70 liters before the draining began.

The water level keeps increasing until the relative maximum. That is at 5 hours when the water level is 70 liters. After that point, the water level decreases as the water is being drained until the water level is 0 at 9 hours. So, the increasing or decreasing interval: Over the first 5 hours, the leak just got bigger and bigger.

Hope this helps!

5 0
3 years ago
Using π = 3.14, find the area of a circle with a radius of 16.
timama [110]
29 because the original answer would have been 28.26
7 0
3 years ago
Other questions:
  • A scientist was studying a population of elephants. the first year, he counted a population of 80. over the next eight years, th
    10·2 answers
  • judith's family went on a cross-country trip. they drove exactly 232 miles a day for 12 days. how many miles did they drive?​
    8·1 answer
  • The product of two consecutive odd integers is 143 find their sum
    9·1 answer
  • What is the height of the triangular prism below if the volume equals 1,638 cubic millimeters? 65 mm 63 mm 26 mm 28 mm.
    13·1 answer
  • If n - 2 = 6 -2(7 + n), then n = ?
    5·1 answer
  • Co-payment is 20% of $23,890 , her co-payment is
    7·1 answer
  • 1. Can cross multiplication be used to solve this problem? Why or why not?<br><br><br> HELP
    10·2 answers
  • Find the equation of the linear function x 1 2 3 4 y 6 9 12 15​
    9·1 answer
  • Taylor pays $5.25 for 0.5 yards of fabric. what is the cost per yard? $1.05$10.05 $10.50$105.00
    13·1 answer
  • Radius of a circle is 5 units what is the diameter
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!