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2 years ago

What do the symbol mean

Mathematics

2 answers:

Lemur [1.5K]2 years ago

7 0

< means “Less than” and the other one means “less than or equal to”

zhannawk [14.2K]2 years ago

4 0

Answer:

≤ and ≥ means bigger / smaller or even.

x≤23 means that x is either smaller than 23 or it is 23

x≥23 means that x is either bigger than 23 or it is 23

< and > means bigger / smaller

x<23 means that x is smaller than 23

x>23 means that x is bigger than 23

hope it helps (:

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Answer two questions about Systems A and B:System A x+3y=−9 2x+y=4 System B 3x+4y=−9 2x+y=4

Jet001 [13]

Answer:

A=(21/5,-22/5) B=(5,-6)

Step-by-step explanation:

6 0

2 years ago

A ship leaves port at noon and has a bearing of S29oW. The ship sails at 20 knots. How many nautical miles south and how many na

ira [324]

Answer:

Approximately $58.2\; \text{nautical miles}$ (assuming that the bearing is ${\rm S$29^{\circ}$W}$ .)

Step-by-step explanation:

Let $v$ denote the speed of the ship, and let $t$ denote the duration of the trip. The magnitude of the displacement of this ship would be $v\, t$ .

Refer to the diagram attached. The direction ${\rm S$29^{\circ}$W}$ means $29^{\circ}$ west of south. Thus, start with the south direction and turn towards west (clockwise) by $29^{\circ}$ to find the direction of the displacement of the ship.

The hypothenuse of the right triangle in this diagram represents the displacement of the ship, with a length of $v\, t$ . The dashed horizontal line segment represents the distance that the ship has travelled to the west (which this question is asking for.) The angle opposite to that line segment is exactly $29^{\circ}$ .

Since the hypotenuse is of length $v\, t$ , the dashed line segment opposite to the $\theta = 29^{\circ}$ vertex would have a length of:

$\begin{aligned}& \text{opposite (to $\theta$)} \\ =\; & \text{hypotenuse} \times \frac{\text{opposite (to $\theta$)}}{\text{hypotenuse}} \\ =\; & \text{hypotenuse} \times \sin (\theta) \\ =\; & v\, t \, \sin(\theta) \\ =\; & v\, t\, \sin(29^{\circ})\end{aligned}$ .

Substitute in $\begin{aligned} v &= 20\; \frac{\text{nautical mile}}{\text{hour}}\end{aligned}$ and $t = 6\; \text{hour}$ :

$\begin{aligned} & v\, t\, \sin(29^{\circ}) \\ =\; & 20\; \frac{\text{nautical mile}}{\text{hour}} \times 6\; \text{hour} \times \sin(29^{\circ}) \\ \approx\; & 58.2\; \text{nautical mile}\end{aligned}$ .

7 0

2 years ago

5 times what equals 75

o-na [289]

The answer is 15.

First you would divide 75 by 5 to get 15, which would be your overall answer!

VOTE AS BRAINLIEST!!!!!! :):):):)

5 0

2 years ago

Read 2 more answers

6) f(x) = 2x - 1, g(x) = 3x + 7<br>Find (fg)(x)

loris [4]

Answer: (fg)(x) = 6x^2 + 11x - 7

Explanation:
(2x - 1)(3x + 7)
= 6x^2 + 14x -3x -7
= 6x^2 + 11x - 7

4 0

2 years ago

The length of each side of the square is decreased by 2 inches, so the perimeter is now 48 inches . What was the original length

Jet001 [13]

X=original length of each side of the square.
perimeter: sum of all sides=4(length of the side)
The length of each side of the new square will be= (x-2)
we can suggest this equation:

4(x-2)=48

We solve this equation:
4(x-2)=48
4x-8=48
4x=48+8
4x=56
x=56/4
x=14

Answer: the original length of each side of the square would be 14 in.

5 0

3 years ago