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3 years ago

I’m confused please help

Mathematics

1 answer:

kupik [55]3 years ago

5 0

Ne demek istiyosun anlamadım

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Write the set builder notation {8}

timofeeve [1]

Step-by-step explanation:

$\{8 \} = \{x : x = n, \: n \in \:N, \: \: 7 < n > 9 \: \}$

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4 years ago

can someone do this whole entire hw page? i will mark you brainlist please im begging, i will be so grateful and will appreciate

nydimaria [60]

I really don’t feel like it rn sry lol

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3 years ago

In ΔEFG, the measure of ∠G=90°, FG = 1.5 feet, and EF = 7.5 feet. Find the measure of ∠F to the nearest degree.

fomenos

Answer:

78°

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you of the relations between angles and sides of a right triangle. In particular, ...

Cos = Adjacent/Hypotenuse

cos(F) = FG/FE = 1.5/7.5 = 0.2

The inverse cosine function is used to find the angle:

∠F = arccos(0.2)

∠F ≈ 78°

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3 years ago

Read 2 more answers

(Determine the Product)<br><br>Someone Help Me with dis plzzz

DiKsa [7]

Answer:

1.601 x 10^9

Step-by-step explanation:

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3 years ago

The number of nails of a given length is normally distributed with a mean length of 5 in and a standard deviation of 0.03 find t

umka2103 [35]

Answer:

19 nails

Step-by-step explanation:

Let's first determine the z-score by using the formula:

$z=\frac{x-\mu}{\sigma}$

Where x=5.03, μ=5, σ=0.03 and so:

$z=\frac{5.03-5}{0.03}=1$

We can now use a z-score table to determine that 1.00 is synonymous with 0.8413 meaning 84.13%. This means that 84.13% of the nails are less than or equal to 5.03 inches long. Therefore, since we know 100% = 1 in decimals we can determine that the length greater than 5.03 inches is 1-0.8413=0.1587. This means that 15.87% of the 120 nails are greater than 5.03 inches long.

Finally, we can determine how many nails are greater than 5.03 by determining what is 15.87% of 120 which is:

$120 \times 0.1587 \approx 19$

And so 19 out of the 120 nails are greater than 5.03 inches long.

5 0

3 years ago