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2 years ago

What is the solution to the equation 4 + 3/2y = 6? y = 1 y=4 y = 500 y = 2000

Mathematics

2 answers:

Vinil7 [7]2 years ago

5 0

Answer: y=4

Step-by-step explanation:

devlian [24]2 years ago

3 0

Answer:

y=4/3

Step-by-step explanation:

First subtract 4

3/2y=2 then Divide by 3/2(or multiply by 2/3)

2*2/3

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One hundred rats with mothers that were exposed to high levels of tobacco smoke during pregnancy were put through a simple maze.

Paul [167]

Answer:

The 90% confidence interval for pis (0.7342, 0.8658).

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:

100 rats mothers, 80 went right. So $n = 100, \pi = \frac{80}{100} = 0.8$

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:

$\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.8 - 1.645\sqrt{\frac{0.8*0.2}{100}} = 0.7342$

The upper limit of this interval is:

$\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.8 + 1.645\sqrt{\frac{0.8*0.2}{100}} = 0.8658$

The 90% confidence interval for pis (0.7342, 0.8658).

3 0

2 years ago

the length of a box of colored pencils is 6 inches, the width is 4 inches, and the height is 3/8 inch. what is the volume of the

HACTEHA [7]

Answer:

9cm3

Step-by-step explanation:

6 x 4 x 3/8=9cm3

3 0

3 years ago

Read 2 more answers

Write and solve an equation to find the unknown side length x (in inches). Perimeter =24.2 in. Sides of the shape are 8.3, 8.3,

Anastasy [175]

Answer:

Perimeter of shape,which is a convex polygon i.e quadrilateral = 24.2 in

Sides are 8.3 in, 8.3 in, 3.8 in ,and length of fourth side be x in.

As , Perimeter = Sum of all sides

→ 24.2 = 8.3 + 8.3 + 3.8 + x

→ 24.2 = 16.6 +3.8 + x

→ 24.2 = 20 .4 + x

Keeping like terms on one side, of equation

→ 24.2 - 20.4 = x

→ 3.8 = x

→ x = 3.8

So, length of fourth side = 3.8 in

The given shape is definately either a Parallelogram or a kite.

7 0

3 years ago

Jon Kent's parents subtracted $3,500 from their adjusted gross income when they listed him as an exemption on their tax return .

NeX [460]

Answer: 3,917

Step-by-step explanation:

3 0

2 years ago

What is this fraction as a decimal?

tiny-mole [99]

0.4444444444444
is the answer for your question it repeats so your gonna want to put a bar notation.

8 0

3 years ago