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3 years ago

Elisa made 0.44 of the free throws dhe attempted what is the amount written as a fraction in simplest form

Mathematics

2 answers:

Vinvika [58]3 years ago

5 0

Answer:

11/25

Step-by-step explanation:

dybincka [34]3 years ago

5 0

Convert 0.44 into 44/100. Simplify by 4 for both. 44/4=11. 100/4=25. The answer is 11/25

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A new car sells for $30,000. The value of the car decreases by 16% annually. After how many years will the car be worth less tha

DIA [1.3K]

Answer: after 6 years.

Step-by-step explanation:

We would apply the formula for exponential decay which is expressed as

A = P(1 - r)^t

Where

A represents the value of the car after t years.

t represents the number of years.

P represents the initial value of the car.

r represents rate at which the value is decreasing.

From the information given,

P = 3000

A = < 10000

r = 16% = 16/100 = 0.16

Therefore

10000 = 30000(1 - 0.16)^ t

1000/30000 = (0.84)^t

0.333 = (0.84)^t

Taking log of both sides to base 10

Log 0.333 = log0.84^t = tlog0.84

- 0.4772 = t × - 0.0757

t = - 0.4772/ - 0.0757 = 6.3 years

8 0

3 years ago

A newspaper article about the results of a poll states: "In theory, the results of such a poll, in 99 cases out of 100 should di

frutty [35]

Answer:

The sample size suggested by this statement is of at least 4145.

Step-by-step explanation:

This statement states that the 99% confidence interval has a margin of error of 2 percentage points.

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 $1 - \frac{\alpha}{2}$ .

The margin of error is:

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

99% confidence level:

So $\alpha = 0.01$ , z is the value of Z that has a pvalue of $1 - \frac{0.01}{2} = 0.995$ , so $Z = 2.575$ .

Find the sample size suggested by this statement.

The sample size is at least n.

n is found when M = 0.02.

We don't know the true proportion, so we use $\pi = 0.5$ , which is when the largest sample size will be needed.

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

$0.02 = 2.575\sqrt{\frac{0.5*0.5}{n}}$

$0.02\sqrt{n} = 2.575*0.5$

$\sqrt{n} = \frac{2.575*0.5}{0.02}$

$(\sqrt{n})^{2} = (\frac{2.575*0.5}{0.02})^{2}$

$n = 4144.14$

Rounding up

The sample size suggested by this statement is of at least 4145.

5 0

3 years ago

PLS HELP !! I WILL GIVE BRAINLIEST !!! I JUST NEED THE ANSWER WITH A SENTENCE EXPLANATION !!!

AURORKA [14]

Answer:

Blue

Step-by-step explanation:

Hard to explain just trust.

8 0

3 years ago

Read 2 more answers

The diagram shows the dimensions of a teepee. Find the volume of the building to the nearest cubic unit. Use 3.14 for pi.

LekaFEV [45]

The volume of a cone uses the following formula:

$V = \pi r^{2} \frac{h}{3}$

Our diameter is 20 feet, so divide this by 2 to find the radius:

$20 \div 2 = 10$

We now have all of our values need to fill in the formula. Plug in these values:

$\pi = 3.14, r = 10, h = 17$

$3.14 * 10^{2} * \frac{17}{3}$

$3.14 * 100 * 5.67$

$314 * 5.67 = 1780.38$

The volume of the cone is 1780 cubic feet.

7 0

3 years ago

What is the solution to 3x2 + 4x - 8 = 0?

Ber [7]

Answer:

The answer is c

Step-by-step explanation:

3 0

3 years ago