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NikAS [45]
2 years ago
11

What is the function in the equation f(x)=2x+1

Mathematics
1 answer:
oksano4ka [1.4K]2 years ago
6 0

Answer:

ok

Step-by-step explanation:

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HELP TUTOR…<br> ss<br> z<br> z<br> z<br> z
kondor19780726 [428]

Answer:

A)σ = 15.37 miles per hour

B) σ = 55.10 miles per hour

C) 39.73 miles per hour

Step-by-step explanation:

Formula for standard deviation is;

σ = √(Σ(x - μ)²)/(n - 1)

A) For large wild cats;

μ = Σx/n = (70 + 40 + 30 + 40 + 35 + 35 + 35 + 35 + 10)/9 = 36.67

σ = √((70 - 36.67)² + (40 - 36.67)² + (30 - 36.67)² + (40 - 36.67)² + (35 - 36.67)² + (35 - 36.67)² + (35 - 36.67)² + (35 - 36.67)² + (10 - 36.67)²)/(9 - 1)

σ = √236.1139

σ = 15.37

B) For various birds;

μ = Σx/n = (218 + 106 + 97 + 56 + 66 + 39 + 55 + 32 + 54 + 20 + 25 + 25)/12

μ = 66.0833

σ = √((218 - 66.0833)² + (106 - 66.0833)² + (97 - 66.0833)² + (56 - 66.0833)² + (66 - 66.0833)² + (39 - 66.0833)² + (55 - 66.0833)² + (32 - 66.0833)² + (54 - 66.0833)² + (20 - 66.0833)² + (25 - 66.0833)² + (25 - 66.0833)²)/(12 - 1)

σ = √3035.72

σ = 55.10

C) difference in standard deviations = 55.10 - 15.37 = 39.73 miles per hour

8 0
3 years ago
Jackie’s report is 5 pages longer than half the number of pages in Kane’s report. There are 14 pages in Kane’s report.
olga_2 [115]

Answer:

12

Step-by-step explanation:

If Jackie's report is longer than half kane's report, then

Jackie report=1/2 kane's report +5

1/2(14) +5

7+5

=12

therefore, Jackie's report =12

pls mark brainliest

5 0
2 years ago
Factor the following expression, and verify that the factored expression is equivalent to the original
Sunny_sXe [5.5K]

Answer:

Final answer

(4X+1)(4X-3)

5 0
3 years ago
Can someone help me solve this
ikadub [295]

Answer:

  1. 168.25 ft
  2. 3.125 s

Step-by-step explanation:

It is almost too easy to let a graphing calculator show you the solution. (See attached)

_____

You may be expected to use some actual algebra (or even calculus) to find the solution.

If you've spent any time with quadratics, you know the vertex of ax²+bx+c is located at x=-b/(2a). Here, that means the time to get to the highest point is ...

... t = -100/(2·(-16)) = 100/32 = 3.125 . . . . seconds

Then the highest point is ...

... h(3.125) = -16·3.125² +100·3.125 +12 = 168.25 . . . . feet

_____

Or, you can put the equation into vertex form.

... h(t) = -16t² +100t +12

... = -16(t² +6.25t) +12

... = -16(t² +6.25t +3.125²) +12 +16·3.125² . . . . . add the square of half the t coefficient inside parentheses; add the opposite of the same amount outside parentheses

... = -16(t +3.125)² +168.25 . . . . . simplify

This tells us the peak of the travel of the bullet is at 168.25 ft after 3.125 seconds.

6 0
3 years ago
Can anyone help. I really need it.
levacccp [35]

Answer:

x+ (x+1) = 55

27, 28

Step-by-step explanation:

Let x = first number

x+1 is the next consecutive number

x+ (x+1) = 55

Combine like terms

2x+1 = 55

Subtract 1 from each side

2x+1-1 = 55-1

2x = 54

Divide by 2

2x/2 = 54/2

x = 27

The numbers are 27 and 28

5 0
2 years ago
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