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padilas [110]
3 years ago
14

Quick is this right??? Answer and question in pic

Mathematics
1 answer:
Olin [163]3 years ago
3 0

Answer:

-199

Step-by-step explanation:

  • put -6 in place of x in equation
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A highway passes under a road. The clearance height is 7.75 feet write and graph an inequality that represents the height of a v
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0 is less than or equal X is less than 7.75
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Lashonda started to run on a treadmil, after setting it's timer for 64 minutes, The display states that she has finnished 68% of
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Step-by-step explanation:

It is 64*0.32=20.48 minutes or 20.5 minutes.

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3 years ago
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Factorise 24e^2-28e-12
Helga [31]

Answer:

4(2e - 3)(3e + 1)

Step-by-step explanation:

Given

24e² - 28e - 12 ← factor out 4 from each term

= 4(6e² - 7e - 3) ← factor the quadratic

Consider the factors of the product of the e² term and the constant term which sum to give the coefficient of the e- term.

product = 6 × - 3 = - 18 and sum = - 7

The factors are - 9 and + 2

Use these factors to split the e- term

6e² - 9e + 2e - 3 ( factor the first/second and third/fourth terms )

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= (2e - 3)(3e + 1)

Then

24e² - 28e - 12 = 4(2e - 3)(3e + 1) ← in factored form

8 0
3 years ago
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

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\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
3 years ago
Which of the following numbers are irrational? Check screenshot.
Law Incorporation [45]

Answer:

d

Step-by-step explanation:

i think it's d because it's negative

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