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3 years ago

Select the equivalent expression

Mathematics

1 answer:

Troyanec [42]3 years ago

6 0

To my calculations i think it’s c

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Write which numbers,if any,are solutions of the inequality. <br><br> N+9<15 N=? 3,5,6,7,9

mash [69]

The answer is
n=6
n<15-9
n<6

8 0

3 years ago

Rearrange x = 3g + 2 to make g the subject

lord [1]

Answer:

$g=\frac{x}{3} -\frac{2}{3}$

Step-by-step explanation:

You divide 3 from both sides leaving you with g=(x/3)-(2/3)

Please mark my answer as brainlyest.

7 0

3 years ago

In a classroom new rug was bought. The area of the Rug is 252 sq m. The rug is 14 m wide.

Brrunno [24]

The length of the rug would be 18m
LxW=A
14x18=252

4 0

3 years ago

The average diameter of sand dollars on a certain island is 4.00 centimeters with a standard deviation of 0.60 centimeters. If 1

blagie [28]

Answer:

0.8413 is the required probability.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 4.00 centimeters

Standard Deviation, σ = 0.60 centimeters

Sample size, n = 16

We are given that the distribution of average diameter is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

Standard error due to sampling =

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{0.60}{\sqrt{16}} = 0.15$

P(diameter of sample is more than 3.85 centimeter)

P(x > 3.85)

$P( x > 3.85) = P( z > \displaystyle\frac{3.85 - 4}{0.15}) = P(z > -1)$

$= 1 - P(z \leq -1)$

Calculation the value from standard normal z table, we have,

$P(x > 3.85) = 1 -0.1587 = 0.8413$

0.8413 is the probability that the the average diameter of sample of 16 sand dollars is more than 3.85 centimeters.

4 0

3 years ago

Help me please the last question

Assoli18 [71]

Answer:

17/7, y = 21 * (17/7), 51

Step-by-step explanation:

so to find what x is, we need to find how much it rises in 1 minute. we do that by dividing 17 by 7. we then see that we want to find how much is it filled in 21 minutes. we then multiply (17/7) by 21 to find the y which is 51

5 0

3 years ago