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2 years ago

The sum of four consecutive odd numbers is 40 what is the greatest of the four numbers

Mathematics

2 answers:

TEA [102]2 years ago

7 0

Answer:

Step-by-step explanation:

First find the average the numbers (40 / 4 = 10)

2 are more and 2 are less

7, 9, 11, 13

allsm [11]2 years ago

3 0

An odd number can be written as 2n+1, where n is an integer. Four consecutive odd numbers can be written as 2n-3, 2n - 1, 2n + 1 and 2n + 3. Adding these together gives you 8n, which we are told is 40. So n is 5 and the four consecutive odd numbers are 7, 9, 11 and 13.

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Suppose you do an analysis of the starting salaries of 100 recent Lehman graduates. You find that the average starting salary is

madreJ [45]

Answer:

a) (59180,60820)

b) (59020,60980)

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = $60,000

Standard Deviation, σ = $5,000

Sample size, n = 100

a) 90% critical values

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.10} = 1.64$

$60000 \pm 1.64(\frac{5000}{\sqrt{100}} ) = 60000 \pm 820 = (59180,60820)$

b) 95% critical values

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$60000 \pm 1.96(\frac{5000}{\sqrt{100}} ) = 60000 \pm 980= (59020,60980)$

5 0

2 years ago

What is the y cordinate of the solution<br>solve 8 and 9<br>

Flauer [41]

Answer:

8) The y coordinate of the solution: 4

9) Average of change from x = 2 to x = 4: 11

Step-by-step explanation:

y = 2x + 2

y = x^2 + 3

x^2 + 3 = 2x + 2

x^2 - 2x + 3 - 2 = 0

x^2 - 2x + 1 = 0

(x - 1)^2 = 0

x - 1 = 0

x = 1

Plug in x = 1 into either those 2 equations to find y

y = 2(1) + 2 = 4

y = (1)^2 + 3 = 1 + 3 = 4

Answer:

The y coordinate of the solution is 4

p(x) = x^2 + 5x - 2

p(2) = 2^2 + 5(2) - 2 = 4 + 10 - 2 = 12

p(4) = 4^2 + 5(4) - 2 = 16 + 20 - 2 = 34

Average of change from x = 2 to x = 4:

[p(4) - p(2)]/[(x(4) - x(2)] = (34 - 12)/(4-2) = 22 /2 = 11

Answer:

Average of change from x = 2 to x = 4 :11

4 0

3 years ago

How u solve 55-[(5*2×3)-5*2]

slava [35]

Answer:

Step-by-step explanation:

55-[(5x2x3)-5x2]

55-[30-5x2]

55-20

6 0

3 years ago

If w = 9, x = 10, and y = 3, what does 6x over 5y equal?

nirvana33 [79]

Answer:

6x = 6 (10) => 60

5y = 5 (3) => 15

$\frac{6x}{5y} = > \frac{60}{15} = > 4$

hope that helps uhh!!

3 0

2 years ago

Read 2 more answers

Which rule, test, or theorem will help you find the probable number of positive and negative real zeros of a polynomial function

Orlov [11]

The number of positive and negative roots or zeros of a polynomial function is predicted through the Descartes Rule of Sign. This was first described by Rene Descartes in his work La Geometrie. The technique is for determining an upper bound on the number of positive and negative real roots.

3 0

3 years ago