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Yanka [14]
3 years ago
6

which of the following inequalities matches the graph? graph of an inequality with a solid line through the points 0, negative 2

and 2, 1 with shading above the line
Mathematics
1 answer:
gladu [14]3 years ago
3 0
1) Equation of the line
Slope, m = [-2 -1]/[0 - 2] = -3 / -2 = 3/2y-intercept, b = -2
y = 3x/2 - 2

2) InequalityThe points over the line have y-coordinate greaetr than the value of the line, then
y ≥ 3x/2 - 2
2y ≥ 3x - 4
3x - 2y ≤ 4
3) Answer: 3x - 2y less than or equal to 4.
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Plsss help. Thanks!!
slava [35]

Answer:

401

Step-by-step explanation:

1. Approach

To solve this problem, one first has to think about the given figure in a certain way. In the figure, one can see that it is a circle attached on either side of a rectangle. To find the perimeter of the figure, one has to find the circumference of the circle and then add two sides of the rectangle to the answer

2. Circumference of the circle

The formula to find the circumference of a circle is;

2r(pi) or d(pi)

~ diameter times the value (pi)

Normally to find the circumference of a semicircle, one would have to divide this formula by 2, but since in this case, one has to add two congruent semicircles, so therefore, the effect of dividing the equation by two, only to multiply by two again cancels, and hence, there is no need to divide by 2.

Substitute in the values;

(78)(pi)

~ 245

3. Find the perimeter of the entire object

Now, one has to add the two additional sides of the figure, to the circumferences of the semicircles to get the final answer;

78 + 78 + 245

= 401

3 0
2 years ago
Read 2 more answers
Suppose you have a data set that includes the values 20, 30, and 50. If you add a fourth value to this data set, and after doing
olya-2409 [2.1K]

Answer:

D. 100

Step-by-step explanation:

Mean = Sum of all numbers divided by the count of all numbers

Mean = 50

Let say that the sum of all numbers = X

50 = X / 4

200 = X

X = (20+30+50) + The 4th Value

200 = 100 + 4th Value

The 4th Value = 100

8 0
2 years ago
Is b+b+b+c+c+c is a equivalent expression?<br> A. True <br> B. False
Rama09 [41]

Answer:

A. True

Step-by-step explanation:

......................................................................................

5 0
3 years ago
When can you use proportional reasoning to solve a problem?
Natali [406]

Answer:

B

Step-by-step explanation:

I DID THAT

7 0
3 years ago
Read 2 more answers
What is the length of the each side? <br> please someone help
blondinia [14]

Answer:

each side 5

Step-by-step explanation:

with 2 equal internal base angles, we know this is an isosceles triangle

this being isosceles also tells us that the 2 opposite sides are also equal

Therefore: x + 2 = 3x - 4

solving for x

x - 3x = -4 -2

-2x = -6

x = -6 ÷ -2

× = 3

substituting x:

x +2 = 3 + 2 = 5

3x-4 = 9 - 4 = 5

7 0
3 years ago
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