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3 years ago

Q4). Solve the equation 2x+1 = 2(1x/2 - 1) are represent the solution (s)

Mathematics

1 answer:

In-s [12.5K]3 years ago

8 0

Answer:

<h3><u>Given :-</u></h3>

2X+1 = 2 [ (1X/2)-1]

Solve the equation and represent the solution on the number line and on the Cartesian plane?

<h3><u>Solution :-</u></h3>

Given equation is 2X+1 = 2 [ (1X/2)-1]

=> 2X+1 = 2[(1X-2)/2]

=> 2X+1 = 2(X-2)/2

=> 2X+1 = X-2

=> 2X-X = -2-1

=> X = -3

Therefore, X = -3

The graph is parallel to Y-axis

The coordinates are (-3,0),(-3,1),(-3,2),...

<h3><u>Scale :-</u></h3>

On X - axis 1 cm = 1 unit

On Y - axis 1 cm = 1 unit

<h3><u>Answer :-</u></h3>

The solution for the given equation is -3.

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The answer would be -21

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What is (r/s) (3) =

Natasha2012 [34]

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Edgar accumulated $11,000 in credit card debt. If the interest rate is 30% per year and he does not make any payments for 3 year

Gennadij [26K]

Answer:

= 1.38778e-141 which makes interest a large amount 139 million and 108 hundred thousand and fourhundred and four.

Step-by-step explanation:

The equation is A= P 1+ r/n ^nt

So we input for A = (11000) x 1.30/11000 ^ 36 x 3

= 1.38778e-141 which makes interest a large amount 139 million and 108 hundred thousand and fourhundred and four.

The formula used in the compound interest calculator is A = P(1+r/n)(nt)

A = the future value of the investment

P = the principal investment amount

r = the interest rate (decimal)

n = the number of times that interest is compounded per period

t = the number of periods the money is invested for

Year Year Deposits Year Interest Total Deposits Total Interest Balance

1 $0.00 $245,278.94 $11,000.00 $245,278.94 - $256,278.94

2 $0.00 $5,714,529.54 $11,000.00 $5,959,808.47 - $5,970,808.47

3 $0.00 $133,137,595.61 $11,000.00 $139,097,404.08-$139,108,404.08

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3 years ago

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A survey of 542 consumers reveals that 301 favor the new design for a product. Construct a 90% confidence interval for the true

kodGreya [7K]

Answer:

The 90% confidence interval for the true proportion of all consumers who favor the design is (0.52, 0.59).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

In which

z is the zscore that has a pvalue of $1 - \frac{\alpha}{2}$ .

For this problem, we have that:

$n = 542, \pi = \frac{301}{542} = 0.555$

90% confidence level

So $\alpha = 0.1$ , z is the value of Z that has a pvalue of $1 - \frac{0.1}{2} = 0.95$ , so $Z = 1.645$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.555 - 1.645\sqrt{\frac{0.555*0.445}{542}} = 0.52$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.555 + 1.645\sqrt{\frac{0.555*0.445}{542}} = 0.59$

The 90% confidence interval for the true proportion of all consumers who favor the design is (0.52, 0.59).

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3 years ago

WORTH 35 POINTS :))

Alenkasestr [34]

Answer:

7.5

Step-by-step explanation:

8x÷4=12÷4

2x=3

x=3/2=1.5

2y+10=22

2y=12

y=6

1.5+6=7.5=7½

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