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AnnZ [28]
2 years ago
6

What is the verbal expression for 6f^2+5f

Mathematics
1 answer:
pychu [463]2 years ago
5 0

Answer:

f = 5/6 = 0.833  or f = 0

Step-by-step explanation:

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The lenghts of two in an isosceles triangle are 8 cm and 4 cm then the perimeter of the triangle is ............cm
anastassius [24]
<h2>20cm</h2><h2>-------------------------------</h2>

<u>Step-by-step explanation:</u>

sides are 4cm, 8cm, 8cm ----( because isosceles triangle have 2 sides equal )

so, perimeter = sum of all sides

= 4 + 8 + 8

<h3> = 20cm</h3><h2>-------------------------------------</h2><h2>FOLLOW ME</h2>
7 0
3 years ago
From a July 2019 survey of 1186 randomly selected Americans ages 18-29, it was discovered that 248 of them vaped (used an e-ciga
jasenka [17]

Answer:

The 90% confidence interval is (0.1897, 0.2285).

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 interval 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:

From a July 2019 survey of 1186 randomly selected Americans ages 18-29, it was discovered that 248 of them vaped (used an e-cigarette) in the past week. This means that n = 1186, \pi = \frac{248}{1186} = 0.2091

Construct a 90% confidence interval to estimate the population proportion of Americans age 18-29 who vaped in the past week.

So \alpha = 0.10 , z is the value of Z that has a pvalue of 1 - \frac{0.10}{2} = 0.95, so z = 1.645.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2091 - 1.645\sqrt{\frac{0.2091*0.7909}{1186}} = 0.1897

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2091 + 1.645\sqrt{\frac{0.2091*0.7909}= 0.2285

The 90% confidence interval is (0.1897, 0.2285).

3 0
3 years ago
How do I factor 8x^2+12+48?
wolverine [178]
<h3><u>4(2x^2 + 3x + 12)</u></h3>

We can factor a 4 out of this expression.

4(2x^2 + 3x + 12)

Now that the expression is simplified, we can see if splitting the middle term is possible.

<em><u>Display factors of 24.</u></em>

1 * 24

-1 * - 24

2 * 12

-2 * -12

3 * 8

-3 * - 8

4 * 6

-4 * -6

All factors of 24 have been listed, and none of these digits satisfy the criteria.

Trinomial cannot be further factored.

8 0
3 years ago
1.588 x 10 to the negative 4th power
damaskus [11]
1588 is the answer hope this helps you
4 0
3 years ago
Read 2 more answers
Estimate the unit rate to the nearest hundredth $2.35
Scilla [17]
It would be $2.40. 4 or less just ignore 5 or more add 1 more
8 0
3 years ago
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