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olga nikolaevna [1]
3 years ago
5

Solve each system of equations or inequalities by graphing 3x - 2y = 6 2x + y = 4

Mathematics
1 answer:
gregori [183]3 years ago
4 0

Answer:

x=2    y=0

Step-by-step explanation:

y=4-2x

3x-2y=6

3x-8+4x=6

7x-8=6

7x=14

x=2

y=4-4

y=0

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Trigonometry<br> Special Right Triangles<br> Find the exact value of tan 30* + sin 90* + cot 60*.
fredd [130]

Answer:

1 + 2sqrt(3)/3

Step-by-step explanation:

tan(30) = sqrt(3)/3

sin(90) = 1

tan(60) = sqrt(3)

cot(60) = 1/sqrt(3) = sqrt(3)/3

sqrt(3)/3 + 1 + sqrt(3)/3

1 + 2sqrt(3)/3

3 0
3 years ago
Write each quotient as a fraction or mixed number.<br><br>SHOW WORK
12345 [234]

Answer:

4 ÷ 5 = 2/5

5 ÷ 4 = 1 1/4

12 ÷ 30 = 2/5

30 ÷ 12 = 2 1/2

6 0
2 years ago
I NEED HELP RNNNNNNNNNN!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Law Incorporation [45]
The answer is the last option 32x8 hope this helps
3 0
3 years ago
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A plane flying horizontally at an altitude of 3 mi and a speed of 440 mi/h passes directly over a radar station. find the rate a
Amiraneli [1.4K]
Let α represent the acute angle between the horizontal and the straight line from the plane to the station. If the 4-mile measure is the straight-line distance from the plane to the station, then
  sin(α) = 3/4
and
  cos(α) = √(1 - (3/4)²) = (√7)/4

The distance from the station to the plane is increasing at a rate that is the plane's speed multiplied by the cosine of the angle α. Hence the plane–station distance is increasing at the rate of
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8 0
3 years ago
I need the mid point
Anestetic [448]

Answer:

(14,\frac{-7}{2})

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Midpoint Formula: (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})

Step-by-step explanation:

<u>Step 1: Define</u>

Point (18, 13)

Point (10, -20)

<u>Step 2: Find Midpoint</u>

Simply plug in your coordinates into the midpoint formula to find midpoint

  1. Substitute [MF]:                    (\frac{18+10}{2},\frac{13-20}{2})
  2. Add/Subtract:                       (\frac{28}{2},\frac{-7}{2})
  3. Divide:                                  (14,\frac{-7}{2})
7 0
3 years ago
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