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poizon [28]
3 years ago
11

Can someone help me please, its geometry

Mathematics
2 answers:
Aleks [24]3 years ago
7 0

Answer:

4n

Step-by-step explanation:

a^2+b^2=c^2

2n^2+2n^2=c^2

4n^2=c^2

sqrt 4n^2=sqrt c^2

4n=c

ahrayia [7]3 years ago
5 0

Answer:

2n

Step-by-step explanation:

Pythagoras a^{2} + b^{2} = c^{2}

2 squared plus 2 squared = 8 but you need to find out the root of 8,

square root of 8 is a surd, so answer in that

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Delta makes 12-volt car batteries. These batteries are known to be normally
blondinia [14]

Answer:

The probability that Delta car batteries last between three and four years

P(36≤X≤48) = 0.5188

The percentage of that Delta car batteries last between three and four years

P(3≤X≤4) = 52%

Step-by-step explanation:

<u><em>Step(i):-</em></u>

<em>Given that the sample size n =12 -volt car batteries</em>

<em>Let  'X' be a Random variable in a normal distribution</em>

<em>Given that mean of the normal distribution = 45 months</em>

<em>Given that the Standard deviation of the normal distribution = 8months</em>

<u><em>Step(ii):-</em></u>

Let  X₁ = 3 years = 12 × 3 = 36 months

Z_{1} = \frac{x_{1} -mean}{S.D} = \frac{36-45}{8} = -1.125

Let X₂ = 4 years  = 12 × 4 = 48 months

Z_{2} = \frac{x_{2} -mean}{S.D} = \frac{48-45}{8} = 0.375

<u><em>Step(iii)</em></u>:-

The probability that Delta car batteries last between three and four years

P(36≤X≤48) = P(-1.125≤Z≤0.375)

                   = P(Z≤0.375) - P(Z≤-1.125)

                   = 0.5 +A(0.375) - (0.5-A(1.125)

                   = 0.5 + 0.1480 - (0.5 -0.3708)

                  = 0.1480 + 0.3708

                 = 0.5188

<u><em>Final answer:-</em></u>

The probability that Delta car batteries last between three and four years

P(36≤X≤48) = 0.5188

The percentage of that Delta car batteries last between three and four years

P(3≤X≤4) = 52%

<em />

5 0
3 years ago
Shawn is buying a new Jet Ski
marishachu [46]

Answer:

Step-by-step explanation:

3 0
3 years ago
There are 8 times as many females as males on the maths course at university. What fraction of the course are female?
Tcecarenko [31]

Answer:

Step-by-step explanation:

Let the males = x

Let the females = 8x

Let the total in the class = x + 8x = 9x

Females = 8x / 9x = 8/9

If you want the decimal, it is .889

4 0
3 years ago
Can someone please answer this for me.
Levart [38]

Answer:

See picture

Step-by-step explanation:

The rule is ...

x^{m/n}=\sqrt[n]{x^m}

The index of the surd becomes the denominator of the exponents inside.

4 0
3 years ago
Read 2 more answers
How can you isolate the variable in this inequality?
Ierofanga [76]

Answer:

C- Divide both sides by 3.

Step-by-step explanation:

In order to isolate the variable, we will have to remove all non-1 coefficients from the variable. Since 3b can be written as 3(b), b is being multiplied by 3. So the only way to isolate the variable is to do inverse operations, which would be to divide both sides of the inequality by 3.

Hope this helped!

3 0
3 years ago
Read 2 more answers
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