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Otrada [13]
3 years ago
6

Solve x 2 + 2x - 1 = 0

Mathematics
1 answer:
rjkz [21]3 years ago
7 0

Answer:

x=-1/2

Step-by-step explanation:

hope this helps

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What’s the surface area
STALIN [3.7K]

Answer: 38 in.^{2}


Step-by-step explanation:

1/ Find the area of the triangular sides. (1/2 x 2 x 6 = 6 in.^{2} for each triangular side)

2/ Find the area of each of the rectangular sides. In this case, the bottom (base) side is 2x6 = 12 in^{2}. The rectangular side on the left is 2x3 = 6 in.^{2}, and the rectangular side on the right is 4x2 = 8 in.^{2}.

3/ Add everything together. Rectangular Sides + Triangular Sides = Surface Area ---> 12 in.^{2} + 6 in.^{2} + 8 in.^{2} + 6 in.^{2} + 6 in.^{2} = 38 in.^{2}

4/ You have your answer, now hope it helps ! :)

4 0
4 years ago
Question 5 options: What is the approximate area of a circle with a radius of 11 cm? Use 3.14 for π. ______ cm2
kobusy [5.1K]

The area of circle is 379.94 cm².

Step-by-step explanation:

Given,

Radius of circle = 11 centimeters

We have to calculate the area of circle.

We know that;

Area of circle = \pi r^2

Here;

π = 3.14 , r = 11

Area of circle = 3.14*(11)^2

Area of circle = 3.14*121

Area of circle = 379.94 squared centimeters

The area of circle is 379.94 squared centimeters.

Keywords: area, circle

Learn more about circles at:

  • brainly.com/question/11921476
  • brainly.com/question/1232765

#LearnwithBrainly

8 0
4 years ago
Find the slope of the line that passes through the pair of points. <br> F(–6, 8), P(–6, –5)
asambeis [7]

-5-8 ÷ -6--6

-13 ÷ 6

gradient = -13/6

6 0
4 years ago
Find the minimum value of the function for the polygonal convex set determined by the given system of inequalities.
lutik1710 [3]

Answer:

Option b (4,1)

Step-by-step explanation:

The region given by the system of inequalities is shown in the graph. We must look within this region for the point that minimizes the objective function f(x, y) = 8x + 8y

The minimum points are found in the lower vertices of the region.

These vertices are found by equating the equations of the lines::

3x+2y=14\\-5x +5y=10

-------------------

x = 2\\y = 4

-8x + 3y = -29\\3x + 2y = 14

---------------------

x = 4\\y = 1

The lower vertices are:

(4, 1) (2, 4)

Now we substitute both points in the objective function to see which of them we get the lowest value of f(x, y)

f(4, 1) = 8(4) +8(1) = 40\\f(2, 4) = 8(2) + 8(4) = 48

Then the value that minimizes f(x, y) is (4,1).

Option b

5 0
3 years ago
What is the probability of getting either a sum of 6 or at least one 5 in the roll of a pair of​ dice
Gekata [30.6K]
In percentage you mean?
3 0
4 years ago
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