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Stolb23 [73]
3 years ago
5

The following observations 40, 42, 45, x-1, x +1, 51, 54, 62 are arranged in

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
4 0

Step-by-step explanation:

Here n = 8 (even number)

\therefore \:  \frac{n}{2}  =  \frac{8}{2}  = 4 \\  \\\&\:\:   \frac{n}{2}  + 1 = 4 + 1 = 5 \\  \\ hence \:  \\ median = \frac{ {4}^{th} term +  {5}^{th} term}{2}  \\  \\  \therefore \:  49 =  \frac{x - 1 + x + 1}{2}  \\  \\  \therefore \:  49 =  \frac{2x}{2} \\  \\  \therefore \:  49 = x \\  \\  \huge \purple { \boxed{\therefore \: x = 49}}

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Which expression represents the length of the spring after Gerard removes some weight? Gerard adds weight to the end of the hang
Andreyy89

Answer: p+(-q)

Step-by-step explanation:

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2 years ago
What is the answer to #3?
Rudiy27
I believe the answer is the last option choice. 
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The following equation represents the total distance (d) that the Benson family has traveled from their home, after traveling 10
Oksanka [162]

The distance from their house the Bensons' after 412 hours will be 18, 640 miles

<h3>What is a function?</h3>

A function is an expression or rule that explains the relationship between a dependent and independent variable.

Given the function;

d= 45 t + 100

Where;

  • d is the total distance
  • t is the time taken

If t = 412 hours

Substitute into the formula

d = 45 ( 412) + 100

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Thus, the distance from their house the Bensons' after 412 hours will be 18, 640 miles

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brainly.com/question/2456547

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6 0
1 year ago
Standard deviation of 300, 785, 670, 187, 760, 724
White raven [17]
STEP 1

Mean = \frac{300+785+670+187+760+724}{6} = \frac{3426}{6}=571

STEP 2

Subtract the mean from each data value then square the answer
300-571=-271 ⇒ (-271)^{2} =73441
785-571=214 ⇒ (214)^{2}=45796
670-571=99 ⇒ (99)^{2}=9801
187-571=-384 ⇒ (-384)^{2} =147456
760-571=189 ⇒ 189^{2}=35721
724-571=153 ⇒ 153^{2} =23409

STEP 3

Add the squared answers in STEP 2 then find the mean

\frac{73441+45796+9801+147456+35721+23409}{6}= \frac{335624}{6}=55937.3

STEP 4

Square root the answer in STEP 3
\sqrt{55937.3} =236.5

Standard deviation is 236.5
 
7 0
3 years ago
Whats -4 (x - 5) = 40
Stels [109]

Answer:

x=-5

Step-by-step explanation:

-4(x-5)=40

-4x+20=40

-4x=40-20

x=20/-4

x=-5

7 0
2 years ago
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