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nika2105 [10]
1 year ago
12

Kiesha’s quality-control manager told her she must have 97% of her clocks functioning properly. She found a report that said 6 o

ut of 300 clocks tested were not working properly. Kiesha predicts that she will have enough working clocks to please the manager. Which statements are true about Kiesha’s prediction? Select three options.
Kiesha’s experimental probability is StartFraction 1 over 30 EndFraction.
Kiesha will have more than 97% of the products working.
Kiesha will not meet 97% because more than 3% of her clocks will be broken.
Kiesha’s experimental probability is StartFraction 1 over 50 EndFraction.
When the inventory is 4000 clocks, the prediction is that 3920 clocks will work.
Mathematics
2 answers:
Lena [83]1 year ago
4 0

Answer:

Step-by-step explanation:

Kiesha will have more than 97% of the products working.

Kiesha’s experimental probability is 1/50

When the inventory is 4000 clocks, the prediction is that 3920 clocks will work.

Elis [28]1 year ago
3 0

Answer:

Kiesha will have more than 97% of the products working.

Kiesha’s experimental probability is 1/50

When the inventory is 4000 clocks, the prediction is that 3920 clocks will work.

Step-by-step explanation:

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The graph shows how many apples Erin can pick if she maintains a constant rate. What is the linear equation for this relationshi
Ainat [17]

Answer:

The linear equation y=50(x) and Erin can pick 50 apples per hour if she maintains a constant rate.

Step-by-step explanation:

To find the linear equation of the relationship from the graph.

We have to find the coordinates .

Let say (x,y)=(1,50) and (x_1,y_1)=(2,100)

Here x variable is the time in hour and y variable is the number of apples.

To find linear equation we have to find the slope (m) of the line by using point-slope form.

m=\frac{y_1-y}{x_1-x}

So,

m=\frac{100-50}{2-1}=50

The the linear equation will be.

   y=50(x)

Number of apples Eric pick in an hour is 50.

By plugging the value of x=1 in the equation we can find the number of apples picked by Erin per hours subsequently x=2 for second hour.

In each hour she picks 50 apples.

Linear equation is  y=50(x) and number of apples picked by Eric in an hour is 50.

6 0
1 year ago
The base of a cube is parallel to the horizon. If the cube is cut by a plane to form a cross section, under what circumstance wo
Keith_Richards [23]
This question has this set of answer choices:

a) when the plane cuts three faces of the cube, separating one corner from the others

b) when the plane passes through a pair of vertices that do not share a common face

c) when the plane is perpendicular to the base and intersects two adjacent vertical faces

d) when the plane makes an acute angle to the base and intersects three vertical faces

e) not enough information to answer the question

The right answer is the first choice: a) when the plane cuts three faces of the cube, separating one corner from the others

You can see a picture of this case in the figure attached: as you can see the cross section (in pink) is a triangle.

8 0
1 year ago
Read 2 more answers
The circumference of a circle is 36 pi feet. What is the length of the radius of this circle?
diamong [38]

Answer: 18 feet

Step-by-step explanation:

Given: The circumference of circle is given by :-

\text{Circumference}=2\pi r, where r is the radius of the circle.

Since, The circumference of a circle=36\pi feet.

2\pi r=36\pi\\\\\Rightarrow\ r=\frac{36\pi}{2\pi}i\\\\\Rightarrow\ r=18\text{ feet}

Hence, the radius of the circle = 18 feet.

3 0
2 years ago
Read 2 more answers
Cei asked 80 people which mode of transport they used to get into town, out of
Sunny_sXe [5.5K]

Answer: Total number person using bus = 16 + 2 = 18

Hence, Total number person using bus to get to town is 18  .

Step-by-step explanation:

Given :

Total number of people = 80

Total number of male = 24

Number of male who use bicycle = 11

Number of female who use bus = 16

Number of people use car = 28

Number of female who use car = 17 out of 28

To find :

The number of people use bus to get to town

Solution :

Number of female who use bus = 16          ..........1

Number of female who use car = 17

Number of female use bicycle =

Number of male uses bicycle = 11

As Total number of male = 24

So, rest of male use either bus or car = 24 - 11 = 13

Since

number of people use car = 28

And number of female use car = 17

So, Number of male use car = 28 - 17 = 11

Again

As 11 male using car, so from 13 male using either car or bus

Number of male using bus = 13 - 11 = 2

7 0
1 year ago
Which system of equations can you use to find the roots of the equation 2x3 + 4x2 – x + 5 = –3x2 + 4x + 9? y = 2x3 + x2 + 3x +5
Alona [7]

Answer:The answer is y = 2x3 + 4x2 – x + 5 and  y = –3x2 + 4x + 9

Roots are both: x=-4, x= -1/2 , x= 1

Proof:

Solve for x over the real numbers:

2 x^3 + 4 x^2 - x + 5 = -3 x^2 + 4 x + 9

Subtract -3 x^2 + 4 x + 9 from both sides:

2 x^3 + 7 x^2 - 5 x - 4 = 0

The left hand side factors into a product with three terms:

(x - 1) (x + 4) (2 x + 1) = 0

Split into three equations:

x - 1 = 0 or x + 4 = 0 or 2 x + 1 = 0

Add 1 to both sides:

x = 1 or x + 4 = 0 or 2 x + 1 = 0

Subtract 4 from both sides:

x = 1 or x = -4 or 2 x + 1 = 0

Subtract 1 from both sides:

x = 1 or x = -4 or 2 x = -1

Divide both sides by 2:

Answer:  x = 1 or x = -4 or x = -1/2

Step-by-step explanation:

4 0
1 year ago
Read 2 more answers
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