Computer keyboard failures can be attributed to electrical defects or mechanical defects. A repair facility currently has 25 failed keyboards, 6 of which have electrical defects and 19 of which have mechanical defects. a. How many ways are there to randomly select 5 of these key boards for a thorough inspection

Hey there! I'm happy to help!

A term is anything in an expression that is added. If you see a - sign it is still a term it is just adding a negative number.

We are adding 32abc, 17ab, -14bc, and -5, so this is four total terms.

Have a wonderful day! :D

Answer:

$47.25

Step-by-step explanation:

Earnings = (rate of pay)(number of hours worked)

Here,

Earnings last weekend = ($8.75/hr)(5.4 hrs) = $47.25

Answer:

y = 12x -18

Step-by-step explanation:

12x−y−8=10

Slope intercept form is

y = mx+b where m is the slope and b is the y intercept

Solve for y

Add 8 to each side

12x−y−8+8=10+8

12x -y = 18

Subtract 12x from each side

-y = -12x +18

Divide by -1

y = 12x -18

Answer:

y=12x-18

Step-by-step explanation:

12x-y-8=10

12x-y=18

-y=-12x+18

y=12x-18

Answer:

c

Step-by-step explanation:

the square root of 106 is 10.

29

Hey there!

[tex]Answer:\boxed{r>1}[/tex]

[tex]-26+13r+2>2-13r[/tex]

Let's start by simplifying both sides of the inequality.

[tex]13r-24>-13r+2[/tex]

Now add 13r to both sides of the inequality.

[tex]13r-24+13r>-13r+2+13r\\26r-24>2[/tex]

Now add 24 to both sides of the inequality.

[tex]26r-24+24>2+24\\26r>26[/tex]

In our fourth/last step, we will divide both sides of the inequality by 26.

[tex]\frac{26r}{26}>\frac{26}{26}\\ r>1[/tex]

[tex]\boxed{r>1}\text{ is your final answer.}[/tex]

Hope this helps!

[tex]\text{-TestedHyperr}[/tex]

Answer:

Population in 2100 is 17.99 billion.

Step-by-step explanation:

The population of the world in 2020  = 7.8 billion.

The growth rate = 1.05%

Now find the population after 2100. Use the below formula to find the population.

Population in 2100 = Population of 2020 (1 + growth rate)^n

Population in 2100 = 7.8 (1 + 0.0105)^80

Population in 2100 = 17.99 billions.

Now, find the growth rate in 2100.

dN/dt = [r N (K – N) ] / K

r = Malthusian parameter

K = carrying capacity.

Now divide both sides by K, now x = N/K then do the differential equation.

dx/dt = r x ( 1- x)

Now integrate, x(t) = 1/ [ 1 + (1/x – 1) c^-rt

From the first equation = dN/dt = (13 – 7.8) / 80 = (r × 7.8×(13 – 7.8) / 12

0.065 = (r × 7.8× 5.2) / 12

0.065 = r × 3.38

r = 1.92%

Answer:

d. accuracy

Step-by-step explanation:

In measurements, accuracy is a term that is used to describe the closeness of a measured value to the actual or true value. While precision describes how close different measured values are to each other.

Thus when a measured value is accurate, it implies that the value is very close or almost equal to the true value. The correct answer to the question is  is option D.

Answer:

96.5606

Step-by-step explanation:

I hope this helps :)

Answer:

Step-by-step explanation:

(-3, -6) (0, -4)

(-4 + 6)/(0 + 3)= 2/3

y + 4 = 2/3(x - 0)

y + 4 = 2/3x - 0

y = 2/3x - 4

answer is c

a

Step-by-step explanation:

you are trying to divide x by 7 to isolate x. so you divide by 8 on both sides.

Answer:

A chord is the line segment joining two points on a curve. The endpoints of a chord always lies on the circle.

It has a formula of ;

 [tex]2r sin\frac{\theta}{2}[/tex]

Step-by-step explanation:

Answer:

Step-by-step explanation:

Donot give these stuff. Write it on a piece of paper thwn only send it. Im one of the brainlie's Assistant like i help people and teach them to do this or do that.

Answer:

Part a)  45 degrees

Part b)   The image looks the same as the original, the vertices rotate around point M in three steps of 45 degrees each (see attached image)

Step-by-step explanation:

Part a)

Notice that since this is a regular figure with 8 sides, in order to find the angle subtended by each, we divide 360 degrees into 8 parts, and that gives us a measure of : 360 / 8 = 45 degrees

So each angle measures 45 degrees, and also the requested angle AMB

m AMB = 45 degrees.

Part b)

Notice that a rotation of 135 degrees is equivalent to 3 rotations of 45 degrees, since  45 x 3 = 135

Then as we rotate the image around the center M in 3 chunks of 45 degrees, we are going to end up in a figure that looks exactly like the original one, but the only thing is that we see the names of the vertex in different positions. Vertex A goes now to where vertex F was. Vertex B goes to where vertex G was, etc.  Please see attached imagewhere the new vertex are denoted in red.

Answer: (4,15)

Step-by-step explanation

just did it

Answer:

(4,15) answer is D

Step-by-step explanation:

Answer:

Total distance = 536 m

Total displacement = 24 m

Step-by-step explanation:

Distance and Displacement

A moving object constantly travels for some distance at defined periods of time. The total moved distance is the sum of each individual distance the object traveled. It can be written as:

dtotal=d1+d2+d3+...+dn

This sum is obtained independently of the direction the object moves.

The displacement only takes into consideration the initial and final points of the path defined by the object in its moving. The displacement, unlike distance, is a vectorial magnitude and can be even zero if the object starts and ends the movement at the same point.

For the question at hand, it's not known if the requirement is about the distance or the displacement, so we will compute both.

To compute the distance, we just add all the distances:

dtotal= 218 m + 72 m + 62 m + 184 m = 536 m

To compute the displacement, we must establish a positive direction as desired. Let's choose the east as the positive direction. Any movement eastward is considered positive and any movement westward is negative. We mentioned the displacement is a vector, but since we only have movement in the x-axis, we can only manage the signs. Thus, the total displacement is:

xtotal = 218 m - 72 m + 62 m -- 184 m = 24 m

Since the result is positive, the jogger stopped 24 meters eastward form the original point.

Answer:

135

Step-by-step explanation:

To answer this question you would write down 105+165 you'll get 260 then to know how much wilma will have to pay you would take the amount wilma pays monthly which is 395 and the answer you got from 105+165 which is 260 and add 395-260 so, 395-260=135

Answer: Wilma should also consider the expenses of fuel, maintenance, and repairs. These are variable expenses and can vary greatly from month to month. To make sure that she can afford a new car, she needs to include these variable expenses in her car budget calculations. If Wilma can’t afford these expenses, she may need to choose a different car with a lower monthly payment or one that requires fewer maintenance costs.

Step-by-step explanation:

Trust / plato / edmentum

Answer:

x=3 LA=12

Step-by-step explanation:

PL plus PA is equivalent to LA. So, (x+4)+(2x-1)=5x-3, which can be rewritten as 3x+3=5x-3. Now we can add 3 to both sides to get 3x+6=5x and subtract 3x from both sides to get 6=2x. Now we divide by 2 on both sides to get x, which is 3, and we can plug that into the equation for LA. So we get 5(3)-2=LA. LA equals 12.

Steps to solve (x+4)+(2x-1)=5x-3:

1: (x+4)+(2x-1)=5x-3

2: 3x+3=5x-3 Rewrite equation

3: 3x+6=5x Add 3 to both sides

4: 6=2x Subtract 3x from both sides

5: 3=x Divide by 2 on both sides

The value of x is 3 and the value of LA is 12.

PL = x + 4,

PA = 2x − 1,

LA = 5x − 3.

Since P is between L and A, then the equation to get x will be:

PL + PA = LA

(x + 4) + (2x - 1) = (5x - 3)

Open the bracket

x + 4 + 2x - 1 = 5x - 3

Collect like terms

3x + 3 = 5x - 3

5x - 3x = 3 + 3

2x = 6

x = 6/2

x = 3

LA = 5x - 3

LA = 5(3) - 3

LA = 15 - 3.

LA = 12

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https://brainly.com/question/9497968

Answer:

The answer is 527745.098

Step-by-step explanation:

527,381 + 364.098 = 527745.098

Answer: h= 7/10

Step-by-step explanation:

9(4h - 6 ) = 2(-13 - 2h)       Distribute on both sides

9(4h) + 9(-6) = 2(-13) + 2(-2h)

36h - 54 = -26 - 4h       Add 4h to both sides

+4h                   +4h

40h - 54 = -26      Add 54 to both sides

      +54     +54

40h = 28     Divide both sides by 40

h = 7/10

Answer:

h= 7/10

Step 1: Remove the parentheses

9(4h - 6) = 2( -13 - 2h) = 36h-54= -26 -4h

Step 2: Move the terms

36h-54= -26 -4h = 36h+4= -26 + 54

Step 3: Calculate like terms

36h+4= -26 + 54 = 40h=28

Step 4: Divide both sides

40h=28 = h= 7/10

(In decimal form - h=0.7)

Answer:

419, 420, 421

Step-by-step explanation:

Answer:

500, 550, 575

Step-by-step explanation:

Common sense

Answer:

1

Step-by-step explanation:

Answer:A. 1

Step-by-step explanation:

Answer: 1

Step-by-step explanation:

Answer:

The first thing to do is to find out which answer choices are similar and then it will be easier to find an answer.

Step-by-step explanation:

Answer:

Unit rate are

22 words per minute

34 miles for each gallon

60 miles per hour

$8 for every hour

Not a unit rate

168 hours in 7 days

$15 for 2 DVDS

Answer:

x/5 - 7 = 8

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

Answer:

(a) less than 10 minutes

= 0.5

(b) between 5 and 10 minutes

= 0.5

Step-by-step explanation:

We solve the above question using z score formula. We given a random number of samples, z score formula :

z-score is z = (x-μ)/ Standard error where

x is the raw score

μ is the population mean

Standard error : σ/√n

σ is the population standard deviation

n = number of samples

(a) less than 10 minutes

x = 10 μ = 10, σ = 2 n = 50

z = 10 - 10/2/√50

z = 0 / 0.2828427125

z = 0

Using the z table to find the probability

P(z ≤ 0) = P(z < 0) = P(x = 10)

= 0.5

Therefore, the probability that the average waiting time waiting in line for this sample is less than 10 minutes = 0.5

(b) between 5 and 10 minutes

i) For 5 minutes

x = 5 μ = 10, σ = 2 n = 50

z = 5 - 10/2/√50

z = -5 / 0.2828427125

= -17.67767

P-value from Z-Table:

P(x<5) = 0

Using the z table to find the probability

P(z ≤ 0) = P(z = -17.67767) = P(x = 5)

= 0

ii) For 10 minutes

x = 10 μ = 10, σ = 2 n = 50

z = 10 - 10/2/√50

z = 0 / 0.2828427125

z = 0

Using the z table to find the probability

P(z ≤ 0) = P(z < 0) = P(x = 10)

= 0.5

Hence, the probability that the average waiting time waiting in line for this sample is between 5 and 10 minutes is

P(x = 10) - P(x = 5)

= 0.5 - 0

= 0.5

Answer:

$0.65

Step-by-step explanation:

The cereal ($3.68) + the milk ($3.53) + the bread ($2.14) costs a total of $9.35.  If Samantha gave the clerk $10.00, she'd receive 65 cents back.

$10.00 - ($3.68 + $3.53 + $2.14) = $0.65

Slope: 3/2 (the coefficient of x)

Y-Intercept: (0,3) (substituting x = 0 into the equation)

Ans: Yellow

Slope of the line [tex]Y=\frac{3}{2} x+3[/tex] is [tex]\frac{3}{2}[/tex] and the y intercept is [tex](0,3)[/tex].

We have equation of the line is[tex]Y=\frac{3}{2} x+3[/tex]

As the standard form of the equation is [tex]y=mx+b[/tex] where m is the slope.

Now, here [tex]m=\frac{3}{2}[/tex]

So slope of the line is [tex]\frac{3}{2}[/tex]

Now, for y intercept put x=0, we get

[tex]y=\frac{3}{2}0+3\\y=3[/tex]

So y intercept is (0,3).

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Answer:

c!

Step-by-step explanation:

Answer:

D. -11

Step-by-step explanation:

Imagine 14-3, and that gets you 11, but this is 3-14, so it would be the negative of that number