2 years ago

Describe the expression (4x÷2)-9y

Mathematics

1 answer:

sertanlavr [38]2 years ago

4 0

<span>(4x ÷ 2) - 9y is difference of two terms.</span>

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The lengths of nails produced in a factory are normally distributed with a mean of 3.34 centimeters and a standard deviation of

Shtirlitz [24]

Answer:

3.47 and 3.21

Step-by-step explanation:

Let us assume the nails length be X

$X \sim N(3.34,0.07^2)$

Value let separated the top 3% is T and for bottom it would be B

$P(X < T)= 0.97$

Now converting, we get

$P(Z < \frac{T-3.34}{0.07})= 0.97$

Based on the normal standard tables, we get

$P(Z < 1.881)= 0.97$

Now compare these two above equations

$\frac{T-3.34}{0.07} = 1.881 \\\\ T = 1.881 \times 0.07 + 3.34 \\\\ = 3.47$

So for top 3% it is 3.47

Now for bottom we applied the same method as shown above

$P(Z < \frac{B-3.34}{0.07})= 0.03$

Based on the normal standard tables, we get

$P(Z < -1.881)= 0.03$

Now compare these two above equations

$\frac{B-3.34}{0.07} = -1.881$

$= -1.881 \times 0.07 + 3.34 \\\\ = 3.21$

hence, for bottom it would be 3.21

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2 years ago

What time is shown on the clock

natita [175]

Answer:

9:18

Hope this helps <3

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2 years ago

Read 2 more answers

Which describes the transformation applied in the figure above?

Amiraneli [1.4K]

Answer:

2 Quadrilateral DEFG was shifted up 6 units.

Step-by-step explanation:

trust me cuz when there is ' its not the orginal shape

7 0

2 years ago

5 days = blank hours

artcher [175]

24 hours in a day. 5 x 24 = 120 hours

6 0

2 years ago

F(x)=3x-1 and g(x)=x+2 find (f+g)(x)

DochEvi [55]

In this question, you're solving by adding the two expressions together.

(f+g)(x) is the same as:

3x - 1 + x + 2

Solve:

3x - 1 + x + 2

<em>combine like terms:</em>

4x - 1 + 2

4x + 1

Answer:

4x + 1

5 0

2 years ago