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2 years ago

NEED help Iam stuck on where to start on this problem

Mathematics

2 answers:

Karo-lina-s [1.5K]2 years ago

8 0

Well what I'll do first is get rid of the fraction by multiplying by 6 on both sides.

HOPE THIS HELPS! ^_^

Elanso [62]2 years ago

3 0

Subtract 11 from both sides of the equation. What do you get?

Next, multiply both sides of your result by 6. This will isolate "z" on the left side.

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Find the zeros of polynomial functions and solve polynomials equations.<br> f(x)=2x^3+2x^2-4x

vladimir2022 [97]

f(x)=2x^3+2x^2-4x

The zeros of polynomial functions

2x^3 + 2x^2 - 4x = 0

2x(x^2 + x - 2) = 0

2x(x - 1)(x + 2) = 0

2x = 0; x = 0

x - 1 = 0; x = 1

x + 2 = 0; x = -2

Answer

x = -2 , 0 , 1

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3 years ago

Paul has a number of counters two less than seven

valentinak56 [21]

The answer is 5 cause two less then 7 is 5.

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3 years ago

The rectangular area measures 30 ft by 25ft. The fencing that will be used comes in 25 ft sections. How many sections will you n

lbvjy [14]

Answer:

Step-by-step explanation:

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3 years ago

An article regarding interracial dating and marriage recently appeared in the Washington Post. Of the 1,709 randomly selected ad

VMariaS [17]

Answer:

The 95% confidence interval for the percent of all black adults who would welcome a white person into their families is (0.8222, 0.8978).

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:

323 blacks, 86% of blacks said that they would welcome a white person into their families. This means that $n = 323, p = 0.86$

95% confidence level

So $\alpha = 0.05$ , z is the value of Z that has a pvalue of $1 - \frac{0.05}{2} = 0.975$ , so $Z = 1.96$ .

The lower limit of this interval is:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.86 - 1.96\sqrt{\frac{0.86*0.14}{323}} = 0.8222$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.86 + 1.96\sqrt{\frac{0.86*0.14}{323}} = 0.8978$

The 95% confidence interval for the percent of all black adults who would welcome a white person into their families is (0.8222, 0.8978).

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3 years ago

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shepuryov [24]

Answer:

2^4 is 16 and 3^5 is 243

Step-by-step explanation:

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3 years ago

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