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stellarik [79]
3 years ago
15

Help plz ,I’m having some difficulties

Mathematics
2 answers:
kobusy [5.1K]3 years ago
6 0

Step-by-step explanation:

| x - 2 | < 4

Start at x=2.  Go 4 units in either direction: x=-2 and x=6.  Draw empty circles around each.  Since it's less than, the line goes between the circles, connecting them.  The result should look like this:

desmos.com/calculator/k2bujixjtx

| x + 2 | > 4

Start at x=-2.  Go 4 units in either direction: x=-6 and x=2.  Draw empty circles around each.  Since it's greater than, the line goes outside of the circles.  The result should look like this:

desmos.com/calculator/sk1cxob0tg

Murljashka [212]3 years ago
3 0

Answer:

Step-by-step explanation:

3.

|x-2|<4

-4<x+2<4

subtract 2 from each inequality

-4-2<x+2-2<4-2

-6<x<2

4.

|x+2|>4

x+2<-4 and x+2>4

or x+2-2<-4-2 and x+2-2>4-2

or x<-6 and x>2

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The number of miles driven by a truck driver falls between 300 and 700, and follows a uniform distribution.
Elena-2011 [213]

Answer:

(A) 0.125 probability

(B) 0.625 probability

(C) 660 miles

Step-by-step explanation:

The distance driven by a truck driver daily, falls between 300miles and 700miles and follows a uniform distribution.

(A) The probability that the truck driver goes more than 650 miles a day is:

[700 - 650] / [700 - 300]  = 50/400  = 0.125

(B) The probability that the truck driver goes between 400 and 650 miles a day is:

[650 - 400] / [700 - 300]  = 250/400  = 0.625

(C) The minimum number of miles the truck driver travels on the furthest 10% of days is given thus:

10% of 400  = 40

Subtract this from the farthest distance;

700miles - 40miles  = 660miles

7 0
2 years ago
The perimeter of a triangle is 56. The side lengths are x + 4, 3x + 7, and x + 9. What is the value of x?
Sidana [21]
<h3><u>Answer:</u></h3>
  • x = 7.2
<h3><u>Step-by-step explanation:</u></h3>
  • Perimeter: Side 1 + Side 2 + Side 3
  • => x + 4 + 3x + 7 + x + 9 = 56
  • => 5x + 20 = 56
  • => 5x = 56 - 20
  • => 5x = 36
  • => x = 7.2
<h3><u>Conclusion:</u></h3>

Therefore, the value of x is 7.2.

Hoped this helped.

BrainiacUser1357

5 0
2 years ago
32.54 = 4.313805 + 0.3012446(x)
Ghella [55]

32.54=4.313805+0.3012446(x)

x=

\frac{32.54 - 4.313805}{0.3012446}

x= 93.698592439499

7 0
3 years ago
Is B equal to C in this geometry problem? I just need to know, that and then I can solve the rest.
Arada [10]

In the right angled triangle ACD shown with isosceles triangle ABC and ADC, AB = AC = AD

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

A triangle is a polygon that has three sides and three angles. Types of triangles are<em> isosceles, equilateral and scalene</em>.

In the diagram shown:

AB = AC = AD

In the right angled triangle ACD shown with isosceles triangle ABC and ADC, AB = AC = AD

Find out more on equation at: brainly.com/question/2972832

#SPJ1

3 0
2 years ago
1.Walmart has ice skates on sale for 15% off the regular price. A pair of ice skates usually costs $89. Find the amount of the d
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Discount - 13.35 sale price - 75.65
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