Which bracelet has the highest portion of gold? Bracelet: _____

vivado [14]

Answer:

9.434 X 10^66

Step-by-step explanation:

2.34 X 10^65 + 9.2 X 10^66 (First, you have to manipulate the exponents to bring them to the same index, i.e. the same power)

We can say that 2.34 X 10^65 = 0.234 X 10^66

Now that the indexes are equivalent, we can proceed to add the two bases together.

0.234 X 10^66 + 9.2 X 10^66

= (0.234 + 9.2) X 10^66

= 9.434 X 10^66

3 0

3 years ago

2sec^2x - secx - 1 = 0

Ivenika [448]

What are you trying to do here?
Solve the graph, or make it appear as something else?

First, we're going to take one sec (x) out so that we get:
sec (x) (2sec (x) -1 -1) = 0

sec (x) (2sec (x) -2) = 0

Then we're going to separate the two to find the zeros of each because anything time 0 is zero.

sec(x) = 0

2sec (x) - 2 = 0

Now, let's simplify the second one as the first one is already.

Add 2 to both sides:

2sec (x) = 2

Divide by 3 on both sides:

sec (x) = 1

I forgot my unit circle, so you'd have to do that by yourself. Hopefully, I helped a bit though!

8 0

3 years ago

Mr williams went scuba diving and took photographs of the sea life at 25 feet below sea level. Write an integer to represent the

____ [38]

Hey You!

The integer would be: -25, because Mr. Williams was below sea level, and not above, so the integer that would represent this situation would be a negative integer.

That's Your Answer! ^^

8 0

3 years ago

How do you write 0.12 as a fraction

Arturiano [62]

[ Answer ]

$\boxed{\frac{3}{25} }$

[ Explanation ]

Rewrite 0.12 As A Fraction

-----------------------------

Rewrite Decimal As A Fraction With 1 As A Denominator

0.12 = $\frac{0.12}{1}$

Multiply To Remove Decimal Places

$\frac{0.12}{1}$ · $\frac{100}{100}$ = $\frac{12}{100}$

Find GCF, Reduce Fraction

$\frac{12 \ / \ 4}{100 \ / \ 4}$ = $\frac{3}{25}$

0.12 = $\frac{3}{25}$

$\boxed{\boxed{[ \ Eclipsed \ ]}}$

7 0

3 years ago

Suppose a random sample of 200 Americans is asked to disclose whether they can order a meal in a foreign language. Describe the

taurus [48]

Answer:

The distribution of sample proportion Americans who can order a meal in a foreign language is,

$\hat p\sim N(p,\ \sqrt{\frac{p(1-p)}{n}})$

Step-by-step explanation:

According to the Central limit theorem, if from an unknown population large samples of sizes <em>n</em> > 30, are selected and the sample proportion for each sample is computed then the sampling distribution of sample proportion follows a Normal distribution.

The mean of this sampling distribution of sample proportion is:

$\mu_{\hat p}=p$

The standard deviation of this sampling distribution of sample proportion is:

$\sigma_{\hat p}=\sqrt{\frac{p(1-p)}{n}}$

The sample size of Americans selected to disclose whether they can order a meal in a foreign language is, <em>n</em> = 200.

The sample selected is quite large.

The Central limit theorem can be applied to approximate the distribution of sample proportion.

The distribution of sample proportion is,

$\hat p\sim N(p,\ \sqrt{\frac{p(1-p)}{n}})$

3 0

3 years ago

Which bracelet has the highest portion of gold? Bracelet: ______