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1 year ago

Which of the following is the solution to the

Mathematics

1 answer:

Studentka2010 [4]1 year ago

5 0

Answer:

the answer to this problem Is C. x>-3

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From long experience, it is known that the time it takes to do an oil change and lubrication job on a vehicle has a normal distr

djyliett [7]

Answer: 29.916 minutes

Step-by-step explanation:

Given the following :

Mean of distribution = 17.8 minutes

Standard deviation of distribution = 5.2 minutes

Percentage of customers to give free lube and oil change service should not exceed 1% if the customer waits beyond the guaranteed time ;

Length of guarantee :

Since % of customers should not exceed 1%

Then probability of not being chosen = (1 - 0.01) = 0.99

Using the z table to find the Zscore of 0.99,

Zscore of 0.99 = 2.33

This is 2.33 standard deviations above the mean

(2.33 × standard deviation) + mean value

(2.33 × 5.2 minutes) + 17.8 minutes

12.116 + 17.8

= 29.916 minutes

8 0

2 years ago

X 5. Solve.

rusak2 [61]

Answer:

2/10*4/10=2/25 aka 0.08 aka rounded is 0.1

Step-by-step explanation:

hope this helps plz give brainliest

3 0

2 years ago

{(6,4),(7,−3),(−4,3),(8,−3)}, which point if added would not create a function?

Lera25 [3.4K]

Answer:

Step-by-step explanation:

What points were you given to choose from?

5 0

2 years ago

Determine the range of the function.

Naya [18.7K]

Answer:

$Solution: f(x)\ge-5\\Interval:[-5,\infty)$

Step-by-step explanation:

Equation: $\frac{1}{4} x^2-5 = y$

1). $\frac{1}{4} x^2-5 = y$ → $\frac{x^2}{4}-5=y$

2). $\frac{x^2}{4}-5=y$ ∴ $a=\frac{1}{4}, b=0, c=-5$

3). $x_v=-\frac{b}{2a}$

$=-\frac{0}{2(\frac{1}{4})}$

$=0$

4). now plug $x_v$ into $y_v$

$y_v=\frac{0^2}{4}-5$

$=-5$

5). Minimum (0,-5) ∴ $f(x)\ge-5$

4 0

3 years ago

What is 2 to the 0 power

Ostrovityanka [42]

Pretty sure it's 0, if you mean 2 to the power of 0

7 0

2 years ago

Read 2 more answers