A computer company wants to determine if there is difference in the proportions of defective computer chips in a day's production from two different production plants A and B. A quality control specialist takes a random sample of 100 chips from the day's production from plant A, and determines that there are 12 defective chips. The specialist
then takes a random sample of 100 chips from the day's production from plant B, and determines that there are 10 defective chips. Based on the 90% confidence interval, (0.05, 0.09), is there convincing evidence of a difference in the true proportions of defective chips from a day's production between the two plants?

O There is convincing evidence because the sample proportions of defective chips for the two plants are different

O There is not convincing evidence because the interval contains 0

O There is convincing evidence because the difference in the two sample proportions is 0.02. Since this is not 0, there is a difference in the true proportions of defective chips for the two plants.

O There is not convincing evidence because the interval contains both negative and positive values.

Answer:

P=39

Step-by-step explanation:

8X6=48 there's already 9 so

48-9=39

so p=39

The function p(t) for the number of visitors over 1-year is an exponential function

The function is given as:

p(t) = 119 + (t-83)e^0.02t

Start by plotting the graph of the function p(t).

From the graph (see attachment), we have the parameters to be:

Hence, the function has no critical point

Read mroe about critical points at:

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Answer:

270 sq. m [b]

Step-by-step explanation:

So the area of a triangle is 1/2 bh (1/2 of base x height).

The base of the triangle shown is 20m. The height is 27m.

(1/2) (20)(27) = 270.

The area of this triangle is 270 sq. m (b)

[tex]\qquad\qquad\huge\underline{\boxed{\sf Answer☂}}[/tex]

Let's solve ~ ☂

[tex]\qquad \sf  \dashrightarrow \: - 0.6(m + 1) = 3[/tex]

[tex]\qquad \sf  \dashrightarrow \: - (m + 1) = 3 \div 0.6[/tex]

[tex]\qquad \sf  \dashrightarrow \: - (m + 1) = 5[/tex]

[tex]\qquad \sf  \dashrightarrow \: - m - 1= 5[/tex]

[tex]\qquad \sf  \dashrightarrow \: - m = 5 + 1[/tex]

[tex]\qquad \sf  \dashrightarrow \: - m = 6[/tex]

[tex]\qquad \sf  \dashrightarrow \: m = - 6[/tex]

I hope it helps ~

Answer:

[tex]3.5\times10^-^1^2[/tex]

Step-by-step explanation:

[tex](7 \times 10^-5) \times (5 \times 10^-8)[/tex]

Evaluate

[tex](7 \times 5)\times(10^-^5\times10^-^8)[/tex]

[tex]35\times10^-^5^-^8[/tex]

[tex]35\times10^-^1^3[/tex]

[tex]35\times10^1\times10^-^1^3[/tex]

[tex]3.5\times10^1^-^1^3[/tex]

[tex]3.5\times10^-^1^2[/tex]

Thus, the answer is [tex]3.5\times10^-^1^2[/tex]

~Lenvy~

Answer:

one gadget costs $15.80

Step-by-step explanation:

Let w = cost of one widget

Let g = cost of one gadget

Given:

⇒ 5w + 3g = 109.9

Given:

⇒ w + 4g = 75.7

Rewrite  w + 4g = 75.7  to make w the subject:

⇒ w = 75.7 - 4g

Substitute into  5w + 3g = 109.9  and solve for g:

⇒ 5(75.7 - 4g) + 3g = 109.9

⇒ 378.5 - 20g + 3g = 109.9

⇒ 378.5 - 109.9 = 20g - 3g

⇒ 268.6 = 17g

⇒ g = 15.8

Therefore, one gadget costs $15.80

To find the cost of one widget, substitute the found value for g into
w = 75.7 - 4g and solve for w:

⇒ w = 75.7 - 4(15.8)

⇒ w = 75.7 - 63.2

⇒ w = 12.5

Therefore, one widget costs $12.50

Answer:

1. 43.01 mm²

2. 13.82yd

3. 15.71cm

4.18.85m

5. 13.85m²

6. 8.17mm²

Step-by-step explanation:

/ means divided by

* means multiplied by

radius is half of a diameter

circumference of a circle is pi multiplied by diameter

area of a circle is pi multiplied by radius squared

1. radius is 7.4 divided by 2 which is 3.7

radius of 3.7 squared is 13.69

pi multiplied by 13.69 is 43.01

2. diameter is radius times 2

2.2 times 2 is 4.4

ℼ * 4.4 = 13.82

3. pi*5=15.71

4. pi*6=18.85

5. 2.1*2.1 = 4.41 -> pi*4.41 = 13.85

6. 1.3*2= 2.6 -> pi*2.6=8.17

Answer:

TRUE

Step-by-step explanation:

Answer:

27

Step-by-step explanation:

a + b = 7

a - b = 3

2a = 10

a = 5

b = 7 - 5

b = 2

3⁵ / 3² = 3³ using law of indices

3³ = 27.

Answer:

27

Step-by-step explanation:

a + b = 7

a - b = 3

2a = 10

a = 5

b = 7 - 5

b = 2

3⁵ / 3² = 3³ using law of indices

3³ = 27

Answer:

s=7

p=3s

Step-by-step explanation:

The perimeter is the side length times 3

So the equation would be p=3s

Plug in 21 for p

21=3s

That means s=7

Answer:

a rhombus would have 2 pairs of parallel sides, or a parallelogram. (First image is parallelogram and second is rhombus)

Total time used= 15+45+30=90 mins

Initial time=7:45

final time will be 1 hr 30 mins more than initial Time

final time= 9:15 am

Answer:

0.3 ft  DISCLAIMER

Step-by-step explanation:

DISCLAIMER: I am not 100% sure if I am correct.  I think I am but there is a chance I am not.  I just thought ONE answer would be better than none.  Feel free to disregard this if you don't want to try.

If you multiply the starting height (4.5 ft.) by .73 (73%) then you would get the second bounce.  I just did that until I got to the 10th bounce and rounded it to the nearest tenth which ended up being 0.3

Answer:

5 in

Step-by-step explanation:

The area of a composite shape: area of the bigger shape - the area of the smaller shape.

In this case, the bigger shape is the shaded region, and the smaller shape is the unshaded region.

1) Shaded region (bigger shape): 2(area of a trapezium) + area of the rectangle.

Area of a trapezium: 1/2 x (a + b) x h, where a and b are parallel lines and h is the height. We have to times the answer by 2 because there are two trapeziums in the shaded region.

Area of a rectangle: l x w, where l is the length and w is the width.

Trapeziums

= 1/2 x (3 + 8) x 5.5 x 2

= 1/2 x 11 x 5.5 x 2

= 1/2 x 60.5 x 2

= 30.25 x 2

= 60.5

Rectangle

= 14 x 3

= 42

Area of the shaded region (bigger shape): trapezium + rectangle

= 60.5 + 42

= 102.5

2) Unshaded region (smaller shape):

Area of a trapezium: 1/2 x (a + b) x h, where a and be are the parallel lines.

= 1/2 x (14 + 25) x 5

= 1/2 x 39 x 5

= 1/2 x 195

= 97.5

3) Area of the bigger shape - the area of the smaller shape

= 102.5 - 97.5

= 5 in²

Answer: -1

Step-by-step explanation:

Answer:

diameter is half the value of circumference 15/2 =7.5 diameter

Answer:

D

Step-by-step explanation:

Volume of cube = s^3

    volume = 2.3^3 = 12.167 cm^3

The general equation of the sine function is [tex]\rm y= 2sin(2(x-\pi)[/tex]. The sine and cosine of an acute angle are utilized to find the angle of the triangle.

The sine and cosine of an angle are trigonometric functions. In the context of a right triangle, the sine and cosine of an acute angle are used to find the angle of the triangle.

The standard general equation of a sine function is given as;

[tex]\rm y= AsinB(x-C)+D[/tex]

Where A denotes the amplitude, B is the frequency, D is the vertical shift and  C is the phase shift.

The given data in the problem is;

A is the amplitude= 2

B is the frequency=2

D is the vertical shift =0

C is the phase shift.=[tex]\pi[/tex]

The general equation is found as;

[tex]\rm y= 2sin(2(x-\pi)[/tex]

Hence the general equation of the sine function is [tex]\rm y= 2sin(2(x-\pi)[/tex].

To learn more about the sin function refer to the link;

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Answer:

∠ SOU = 138°

Step-by-step explanation:

the opposite angles of a tangent kite are supplementary, sum to 180° , so

∠ SOU + ∠ STU = 180° , that is

∠ SOU + 42° = 180° ( subtract 42° from both sides )

∠ SOU = 138°

Step-by-step explanation:

2 m corresponds to 0.4 cm on a blueprint.

so,

2 m / 0.4 cm = 200 cm / 0.4 cm

our fun the point of view of the blueprint

0.4 cm / 200 cm

the scale on a map or blueprint is usually normed to one unit on the blueprint :

0.4/200 × f/f = 1/(200×f)

0.4 × f = 1

f = 1/0.4 = 2.5

so, our scale is

(0.4 × 2.5) / (200 × 2.5) = 1 / 500

that means 1 cm on the blueprint corresponds to 500 cm or 5 m in reality.

Let the number to be added be A

Now,

[tex]\begin{gathered}\implies\quad \sf −5x^3 + 4x − 3 + A = x^2 − x − 1 \\\end{gathered} [/tex]

Transposing (−5x³+ 4x − 3 ) to other side-

[tex]\begin{gathered}\\\implies\quad \sf A = x^2 − x − 1 -( −5x^3 + 4x − 3) \\\end{gathered} [/tex]

Remember if there is a -ve sign before a bracket the signs of whole of the terms changes on opening bracket

[tex]\begin{gathered}\\\implies\quad \sf A = x^2 − x − 1 + 5x^3 - 4x + 3\\\end{gathered} [/tex]

Putting like terms together -

[tex]\begin{gathered}\\\implies\quad \sf A = 5x^3 +x^2 - x -4x +3 -1 \\\end{gathered} [/tex]

[tex]\begin{gathered}\\\implies\quad \sf A = 5x^3 +x^2 -5x +2 \\\end{gathered} [/tex]

[tex]\longrightarrow[/tex]Therefore, 5x³+x²-5x +2 should be added to −5x³+ 4x − 3 to get x²− x − 1

From the given information, the tallest player is: Dave.

In sports, a player refers to an individual who takes part in a sports. It can be in football, rugby, badminton, lawn tennis, basketball, etc.

We can see from the above that Mike and Jim are faster and quicker shooters than Jason and Dave. Jim is the second fastest which means that Mike is the fastest. Since no person is the best (e.g. , tallest, quickest, best shooter) at more than one category, it then means that Dave is the tallest.

Learn more about sports on https://brainly.com/question/3951300

Answer:

ac is parallel to df because it doesn't intersect with each other

Answer:

(b1+b2)h divided by 2 is the formula for a trapezoid

Step-by-step explanation:

ANSWER: 468 ft (squared?)

Answer:

Red

Step-by-step explanation:

Hope it helps :)

Answer:

Alright so the answer is B but I'll explain why because im nice ig.

Step-by-step explanation:

So lets do some calcumalations.

We'll use 1 as n and should get an output of 3 to check these formulas. Since 1 is the first term and 3 is the first term value makes sense alright.

So 9^1-1 is 0 and any number to the 0 power is 1 so that wont work.

3(4)^1-1 = 3(1); that's the answer

4^1-1 = 1, + 3 = 4 so that wont work either

I hope this helps ya have a great afternoon

The value of x in the diagram is 8 feet that makes the combined area of the house and the porch to be 733 ft²

Combined area = big rectangle + smaller rectangle - triangle

Hence:

733 = (13 * (59 - x)) + (x * 9) - 0.5(9 - 7) * (x - 6)

733 = 767 - 13x + 9x - x + 6

x = 8 feet

The value of x in the diagram is 8 feet that makes the combined area of the house and the porch to be 733 ft²

Find out more on area at: https://brainly.com/question/25292087

Answer:

x>6

Step-by-step explanation:

3x>18

x>6

Any number over 6 can satisfy this inequality.

Answer:

a) exponential growth   b) 8000  c) 1.02  d) f(x) = 8000(1+.05/4)^(4)(5)   e)  $11887.58

Step-by-step explanation:

This situation is exponential growth because the money will be increasing over time.  The initial amount is the amount invested in the beginning so in this case 8000.  The growth factor is found by 1+r/n where r is the rate and n is the number of compounds per year so 1 + .08/4 where the r is expressed as a decimal and compounding quarterly means 4 times per year.  The function is modeled by f(x) = P(1 +r/n)^nt.  Evaluating the function gives f(x) = 8000(1 + .08/4)^(4*5).