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3 years ago

The density of gold is 19.3 g/cm? What is the volume of a 13 g gold nugget? (Density: D=

Mathematics

1 answer:

navik [9.2K]3 years ago

6 0

Answer:

0.67 cm³

Step-by-step explanation:

Volume = mass/density

V = 13/19.3 = 0.67 cm³

Correct option

B 0.67 cm³

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Solve the inequality 1≥−y/4

scoundrel [369]

Answer:

y≥-4 or (-4,∞)

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

The number of accidents on a certain section of I-40 averages 4 accidents per weekday independent across weekdays. Assuming the

AysviL [449]

Answer:

1.83% probability there are no car accidents on that stretch on Monday

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given time interval.

The number of accidents on a certain section of I-40 averages 4 accidents per weekday independent across weekdays.

This means that $\mu = 4$

What is the probability there are no car accidents on that stretch on Monday?

This is P(X = 0).

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 0) = \frac{e^{-4}*(4)^{0}}{(0)!} = 0.0183$

1.83% probability there are no car accidents on that stretch on Monday

5 0

3 years ago

Macy currently has a balance of $3,418.82 in an account earning simple interest. Eighteen years ago she opened the account with

Elis [28]

The simple interest is 1.79726

8 0

3 years ago

Please solve the following sum or difference identity.

xxTIMURxx [149]

Answer:

$sin(A - B) = \frac{4}{5}$

Step-by-step explanation:

Given:

$sin(A) = \frac{24}{25}$

$sin(B) = -\frac{4}{5}$

Need:

$sin(A - B)$

First, let's look at the identities:

sum: $sin(A + B) = sinAcosB + cosAsinB$

difference: $sin(A - B) = sinAcosB - cosAsinB$

The question asks to find sin(A - B); therefore, we need to use the difference identity.

Based on the given information (value and quadrant), we can draw reference triangles to find the simplified values of A and B.

sin(A) = $\frac{24}{25}$

cos(A) = $\frac{7}{25}$

sin(B) = $-\frac{4}{5}$

cos(B) = $\frac{3}{5}$

Plug these values into the difference identity formula.

$sin(A - B) = sinAcosB - cosAsinB$

$sin(A - B) = (\frac{24}{25})(\frac{3}{5}) - (-\frac{4}{5})(\frac{7}{25})$

Multiply.

$sin(A - B) = (\frac{72}{125}) + (\frac{28}{125})$

Add.

$sin(A - B) = \frac{4}{5}$

This is your answer.

Hope this helps!

6 0

3 years ago

Read 2 more answers

PLEASE HELP! GIVING OUT BRAINLIEST

cestrela7 [59]

a) Unit rate = 24 oz / 10lb = 2.4 oz / lb

This means that we need 2.4 oz of seasoning for every pound of crawfish

b) For 30 lbs....we need 30 * 2.4 = 72 oz of seasoning

c) With 36 oz of seasoning...we can cook 36 / 2.4 = 15 lbs of crawfish

7 0

3 years ago