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Firlakuza [10]
2 years ago
9

3. Evaluate and graph the solution. 3. E the "the 5x + 9-3x s 21 + ++

Mathematics
1 answer:
choli [55]2 years ago
5 0

Answer:

x=6

Step-by-step explanation:

5x+9-3x=21

5x-3x=21-9

2x=12

x=6

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No, it would only reach -3600 feet
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Graph the equation y-1=-3(x-3)
trapecia [35]

Answer:

y= -3x +10

the y-intercept is at 10 and then go 3 down one to the right

Step-by-step explanation:

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2) An $80 text book was on sale for $49.60 at the used book store. By
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Answer:

38%

Step-by-step explanation:

Original price = $ 80

Price after reduction = $ 49.60

Reduction = 80 - 49.60  = $30.40

Percentage of decrease = \frac{reduction price}{original price}*100

                                         = \frac{30.40}{80}*100\\\\=\frac{3040}{80}

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Find the value of x so that L is parallel to M. State the converse used!
galben [10]

Answer:

<h3>6 degrees</h3>

Step-by-step explanation

Find the diagram attached. In Line geometry, there is a theorem that states that the sum of the adjacent interior angles is 180 degrees. According to the diagram, the adjacent interior angles are 7x- 15 and 24x + 9.

The sum of this angles must give 180 degrees as shown;

7x-15 + 24x + 9 = 180

7x+24x-15+9 = 180

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3 0
2 years ago
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Step2247 [10]

Answer:

The volume of the finished cylinder is 4486.2 m^3

Step-by-step explanation:

To find the volume of the finished cylinder, we have to first find the volume of the hole (with 14 cm diameter and a height of 28 cm) and subtract it from the volume of the original cylinder (with diameter of 20 cm and a height of 28 cm).

Note: The hole is also cylindrical in shape.

The volume of a cylinder is given as:

V = \pi r^2h

where r = radius, h = height

VOLUME OF THE HOLE

The diameter of the hole is 14 cm, hence, its radius is 7 cm (14 / 2 = 7)

Its volume is:

V = \pi *7^2 * 28\\V = 4310.3 m^3

VOLUME OF THE ORIGINAL CYLINDER

The diameter of the cylinder is 20 cm, hence, its radius is 10 cm (20 / 2 = 10)

Its volume is:

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Hence, the volume of the finished cylinder will be:

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The volume of the finished cylinder is 4486.2 m^3

8 0
2 years ago
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