2 years ago

Describe the system of equations How many solutions does this system have.

Mathematics

1 answer:

alexgriva [62]2 years ago

7 0

Answer:

Step-by-step explanation:

One solution, at the point of intersection, (3,3)

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Find the exact value of T Image below

Elanso [62]

Answer:

a) 1/800 or 0.00125

b) i) 0.0013

ii) 0.001

c) 60%

Step-by-step explanation:

T = [tan(2×30)+1][2cos(30)-1] ÷ (y²-x²)

T = (tan60 + 1)(2cos30 - 1) ÷ (41² - 9²)

T = (sqrt(3) + 1)(sqrt(3) - 1) ÷ 1600

T = (3-1)/1600

T = 2/1600

T = 1/800

T = 0.00125

Error: 0.002 - 0.00125

0.00075

%error

0.00075/0.00125 × 100

60%

4 0

3 years ago

Troy’s canoe is 18 feet long. Ariel’s canoe is 5\6 the length of Troy’s canoe.

sukhopar [10]

5/6 = .83333333333333333333333333.... It goes on...
.833333333333333333 * 18 = 15
15 is your answer

Another way you could do it is 18/6 = 3
3+3+3+3+3 = 15

3 being 1/6th of 18 *Hope This Helps...*

6 0

2 years ago

What are the solutions of the quadratic equation (x + 3)(x +3) = 49? Ax = -2 and x = -16 Bx = 2 and x = -10 Cx = 4 and x = -10 D

Ivahew [28]

Answer:

4 and -10

Step-by-step explanation:

$\displaystyle (x + 3)(x +3) = 49 \\ x^2+3x+3x+9=49 \\ x^2 +6x+9=49 \\ x^2 + 6x + 9 - 49 = 0 \\x^2+6x-40=0 \\\\ \Delta=b^2-4ac \\ \Delta=6^2-4 \cdot 1 \cdot (-40) \\ \Delta=36+160 \\ \Delta=196 \\ \\ X_{1,2}=\frac{-b \pm \sqrt{\Delta} }{2a} \\ \\ X_1=\frac{-b+\sqrt{\Delta} }{2a} = \frac{-6+14}{2} = \frac{8}{2}=4 \\ \\ X_2=\frac{-b-\sqrt{\Delta} }{2a} = \frac{-6-14}{2}=\frac{-20}{2} = -10$

4 0

3 years ago

Find the distance CD rounded to the nearest tenth C=(5,6) D=(2,2)

Dmitriy789 [7]

2,2 is 3,4 away from 5,6 and 3²+4²=25=5² so CD=5

3 0

2 years ago

A rhombus, which is a quadrilateral with 44 equal sides, is plotted on the coordinate plane. The coordinates of the vertices are

Arturiano [62]

The rhombus is shown in the diagram below

The length of one side of the rhombus is 5 units, hence all the other sides are also 5 units each.

8 0

2 years ago