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LekaFEV [45]
2 years ago
8

How do you do this question?

Mathematics
1 answer:
oksian1 [2.3K]2 years ago
3 0

Answer:

(-2, 0)

Step-by-step explanation:

ƒ(x) <0 in the intervals where the function is below the x-axis.

The only interval where ƒ(x) < 0 is (-2.0, 0.0).

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help pleaseeee, i managed to get the right answer but the way i did it doesnt feel right, can somebody please answer so i can se
irga5000 [103]

Answer:

≈ 4,22 m

Step-by-step explanation:

volume = 20000L = 20000 dm^3 = 20 m^3

diameter = 2,4m

the volume of a cilinder is π * r^2 * h (height)

20 = π * 1,2^2 * h

h = \frac{20}{\pi * 1,44} \\ ≈ 4,42 m

4 0
1 year ago
Help angels this geometry is a pain in the 4$$
stich3 [128]

Answer:

1. 4.5

2. The scale factor is 3/4

Step-by-step explanation:

6 0
2 years ago
If x - 4 , x + 2 and 3x + 6 form a geometric sequence, find x.
Alex17521 [72]

Answer:

x =7

Step-by-step explanation:

Remark

  • A geometric sequence always has terms that are separated by a common ratio. For example 3 9 27 81 243 ....
  • Each term is multiplied by a common number and the term before it. In this case the common term is 3.
  • To get the next term after 9, you multiply 9 by 3.
  • To get the common ratio divide the second term by the first and then the third term by the second

Equation

(x + 2)/(x - 4) = (3x + 6)/ (x + 2)

Solution

I would begin this problem by taking out the common factor on the top right term. You'll see why in a second.

(x + 2)/(x - 4) = 3(x + 2)/ (x + 2)   Notice the two binomials on the right cancel.

  • (x + 2)/(x - 4) = 3/1                       Cross multiply
  • (x + 2)*1 = 3*(x - 4)                       Remove the brackets on the right.
  • x + 2 = 3x - 12                             Add 12 on both sides.
  • x + 2 + 12 = 3x - 12 + 12              Simplify
  • x + 14 = 3x                                  Subtract x from both sides
  • 14 = 3x - x
  • 2x = 14                                        Divide by 2
  • x = 14/2
  • x = 7
7 0
2 years ago
Shortest to longest in order<br><br> 1 mm, 1m, 1cm, 1 km
DanielleElmas [232]

Answer:

1mm, 1cm, 1m, 1km.

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Each day Diego's mother drives to her office in Baltimore. The driving distance from home to Baltimore, Maryland is 7 miles. On
Sidana [21]

Answer:

D

Step-by-step explanation:

(7+8)*3

6 0
2 years ago
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