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4 years ago

Need help and ASAP again please

Mathematics

2 answers:

xenn [34]4 years ago

7 0

Answer:

A=60

Step-by-step explanation:

iren [92.7K]4 years ago

5 0

Answer:

60 degrees alternate interior

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How many 1/4 of an hour segments does it take to make 1 hour

aniked [119]

Answer:

Step-by-step explanation:

because if you divide 60 by four you get fifteen which is the number of segments that is divisible by 60 because if you divde 60 by anything else you wont get the perfect divisible.

3 0

3 years ago

Maria is 19 years old. Her age is 4 more than 3 times some number, x.

musickatia [10]

Answer: x = 5

Step-by-step explanation:

We can set up an equation to solve for x:

3x + 4 = 19

We can subtract 4 from both sides:

3x = 15

We can divide both sides by 3:

x = 5

8 0

3 years ago

Read 2 more answers

4. Steve has a card collection. He keeps 12 of the cards in a pocket, which

BabaBlast [244]

Answer:

I think 80

Step-by-step explanation:

100/15=6.66666667

12x6.67=80.4

4 0

3 years ago

A survey conducted in July 2015 asked a random sample of American adults whether they had ever used online dating (either an onl

Natasha2012 [34]

Answer:

The 99% confidence interval is (0.0787, 0.1613).

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:

The survey included 411 adults between the ages of 55 and 64, and 50 of them said that they had used online dating. This means that $n = 411, \pi = \frac{50}{411} = 0.12$