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2 years ago

PLEASE SOMEONE TELL ME IF I DID THIS RIGHT

Mathematics

1 answer:

sveta [45]2 years ago

8 0

Answer:

no is not fully correct for the name part you need to put the names of the elements in the compound

Step-by-step explanation:

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At a large department store, the average number of years of employment for a cashier is 5.7 with a standard deviation of 1.8 yea

Mandarinka [93]

Answer:

option 0.8%

Step-by-step explanation:

Data provided in the question:

Mean = 5.7 years

Standard deviation, s = 1.8 years

Now,

P(the employee has worked at the store for over 10 years)

= P(X > 10 years)

= $P (Z > \frac{X-Mean}{\sigma})$

= $P (Z > \frac{10-5.7}{1.8})$

= P (Z > 2.389 )

= 0.008447 [from standard z table]

= 0.008447 × 100% = 0.84% ≈ 0.8%

Hence,

the correct answer is option 0.8%

5 0

3 years ago

A container holds 0.7 liters of oil and vinegar 3/4 of that is vinegar how much oil is in the container

fgiga [73]

Answer:

There are 21/40 L or 0.525 L of vinegar in the container.

Step-by-step explanation:

3 0

3 years ago

X=2π/3

Marina86 [1]

Answer:

$cos{\frac{2\pi}{3}}=-\frac{1}{2}$ .

Reference angle is $\frac{\pi}{3}$

Step-by-step explanation:

Given the value of x. we have to find the correct value of cosx.

$x=\frac{2\pi}{3}$

Now, we have to find the exact value of $cos{\frac{2\pi}{3}}$

$cos{\frac{2\pi}{3}}=cos(\frac{\pi}{2}+\frac{\pi}{6})$

$=-sin(\frac{\pi}{6})$

$=-\frac{1}{2}$

Now, we have to find the reference angle of $x=\frac{2\pi}{3}$ .

Since the angle $x=\frac{2\pi}{3}$ lies in second quadrant, the reference angle formula is

Reference angle= $\pi-given angle$ .

= $\pi-\frac{2\pi}{3}=\frac{\pi}{3}$

3 0

3 years ago

Find the quotient. 12a3p4 ÷ -2a2p -6a3p5 -24ap3 -6ap3 6a5p3

kap26 [50]

Step-by-step explanation:

Given

12a³p^4 / - 2a²p

= - 6* a^3 - 2 * p^4- 1

= - 6ap³

Hope it will help :)

8 0

3 years ago

10 divided by 2 8 times 3 54 minus 6 9 to the third power

musickatia [10]

Answer:

10 divided by 2 is 5

8 times 3 is 24

54 minus 6 is 48

9 to the third power is 729

Step-by-step explanation:

5 0

3 years ago