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agasfer [191]
3 years ago
12

Help me pls pls pls pls ​

Mathematics
1 answer:
timurjin [86]3 years ago
4 0

Answer:

The valid point is (5/2, 5)

Step-by-step explanation:

In order to check which ones are valid we will apply all of them to the expression.

(5,15):

\frac{2}{5}x - \frac{1}{5}y \geq 0\\\\\frac{2}{5}5 - \frac{1}{5}15 \geq 0\\\\-1 \geq 0

False.

(1/2, 5):

\frac{2}{5}x - \frac{1}{5}y \geq 0\\\\\frac{2}{5}\frac{1}{2} - \frac{1}{5}5 \geq 0\\\\-\frac{4}{5} \geq 0

False.

(5/2, 5):

\frac{2}{5}x - \frac{1}{5}y \geq 0\\\\\frac{2}{5}\frac{5}{2} - \frac{1}{5}5 \geq 0\\\\0 \geq 0

True.

(2,5):

\frac{2}{5}x - \frac{1}{5}y \geq 0\\\\\frac{2}{5}2 - \frac{1}{5}5 \geq 0\\\\-\frac{1}{5} \geq 0

False

(-1,0):

\frac{2}{5}x - \frac{1}{5}y \geq 0\\\\\frac{2}{5}(-1) - \frac{1}{5}0 \geq 0\\\\-\frac{2}{5} \geq 0

False.

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Gekata [30.6K]
The answer to your math problem is m= 5/2
4 0
3 years ago
How would I figure this out?
andrew-mc [135]

Answer:

y = 23

x ≈ 13

Step-by-step explanation:

3y + (y+88) = 180

Solve for y

y =23

6x + 35 = y + 88

substitute y = 23

6x + 35 = 23 + 88

Solve for x

x ≈ 13

3 0
3 years ago
Read 2 more answers
Triangle ABC has vertices at A(–2, 3), B(–3, –6), and C(2, –1). Is triangle ABC a right triangle? If so, which angle is the righ
podryga [215]
We'll use rise over run to find the slopes of two of the sides of the triangle:

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

Because C is the rightmost point, we'll have it represent (x1,y1), and have A and B represent (x2,y2):

A to C
(-2,3) to (2,-1)

\frac{-1 - 3}{2 + 2} = \frac{-4}{4} = -1

The slope of the line from A to C is -1.

B to C
(-3,-6) to (2,-1)

\frac{-1 + 6}{2+3} = \frac{5}{5} = 1

The slope of the line from B to C is 1.

These lines intersect at (2,-1), and they have negative reciprocal slopes of each other, which creates a perpendicular angle. This means that triangle ABC is a right triangle, and angle ACB is the right angle.
4 0
3 years ago
Each of 150 volunteers was assigned at random to one of five rooms where they were asked to taste and rate a glass of wine. In o
uysha [10]

Answer:

a. Experiment

b. yes

Step-by-step explanation:

The study being conducted in this scenario is an experiment because different groups are being created and both an independant variable and dependant variable are being introduced. This means that there is researcher involvement and therefore makes this an experiment and not an observational study.

Yes, a case can be made for such a claim. This is because the music being played is the dependent variable in each of the groups. Meaning that the only difference in each of the groups was the music. Therefore, any differences in the data gathered can be connected to the music.

7 0
3 years ago
Miguel buys 100 feet of fence to enclose a rectangular area of his backyard so his dog can run freely. What is the maximum area,
sdas [7]
Suppose the length of the triangle is x, if the perimeter of the rectangle is 100 ft, the width of the rectangle will be (50-x) ft.
Area of rectangle will be:
A=length*width
A=x(50-x)
A=50x-x^2
at maximum area, dA/dx=0
thus
dA/dx=50-2x=0
solving for x we get
2x=50
x=25
thus for maximum area length=25 ft
the size of the width will be
50-x=50-25=25 ft
thus the maximum area will be:
25*25=625 sq. feet
5 0
3 years ago
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