II. Which of the following is a solution of
the equation 25m 25?
A 0.10
B 0.15
C 0.18
D 0.30

Answer:

y = 25x + 40

Step-by-step explanation:

The electrician charges $25 per hour.

The number of hours is x.

Therefore after x hours the electrician will charge $25x. (multiply the charge by the number of hours $25 * x)

Therefore fee(y) charged by the electrician = $40 + $25x

Hence y = 25x + 40

The value of x in part (a) is [-3+√21]/6 and [-3-√21]/6, the value of t in part (b) is (1/5+√11/5) and (1/5-√11/10), the value of t in part (c) is 1/5 and the value of t in part (d) is 1/5-3/5i and 1/5+3/5i.

Part a. Solving for x,

1/x - 1/(x+1) = 3

(1-x+x)/x(x+1) = 3

1/(x²+x) = 3

1 = 3x²+3x

3x²+3x-1=0

Solving the quadratic by using quadratic formula,

x = [-b±√(b²-4ac)]/2a

Here,

a = 3

b = 3

c = -1

Putting all the values,

x= [-3±√(3²-4(3)(-1)]/6

x = [-3±√21]/6

We get,

x = [-3+√21]/6 and

x = [-3-√21]/6

Part b. Solving for t;

2 =√[(1+t)²+(1-2t)²]

Squaring both sides,

4 = (1+t)²+(1-2t)²

4 = 1+t²+2t+1+4t²-4t

2 = 5t²-2t

5t²-2t-2=0

Solving the equation by using quadratic formula,

t= [-b±√(b²-4ac)]/2a

Here,

a = 5

b = -2

c = -2

Putting all the values,

t = [2±√(4-4(5)(-2))]/10

t = [2±√44]/10

We get

t = (1/5+√11/5) and (1/5-√11/10)

Part c. Solving for t;

3/√5 = √[(1 + t)² + (1 − 2t)²]

Squaring both sides,

9/5 = (1+t)²+(1-2t)²

9/5 = 1+t²+2t+1+4t²-4t

9 = 5+5t²+10t+5+20t²-20t

25t²-10t+1=0

t = [-b±√(b²-4ac)]/2a

Here,

a = 25

b = -10

c = 1

Putting all the values,

t = [10±√(100-4(25))]/50

t= [10±0]/50

t= 1/5

Part d. Solving for t;

0 = √[(1 + t)²+(1 − 2t)²]

Squaring both sides,

(1+t)² =-(1-2t)²

1+t²+2t = -(1+4t²-4t)

1+t²+2t = -1-4t²+4t

5t²-2t+2=0

Solving the equation by using quadratic formula,

t = [-b±√(b²-4ac)]/2a

Here,

a = 5

b = -2

c = 2

Putting all the values,

t = [2±√(4-4(5)(-2)]/10

t = [2±√(-36)]/10

t = [2±6√(-1)]/10

√-1 is 'iota' or i.

t = (2±6i)/10

We get,

t = 1/5-3/5i and 1/5+3/5i

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Answer: 2a < 2b

Step-by-step explanation:

We are given a statement:

a < b and b < c, then 2a ____ 2b

We can use simple numbers that make the statement true.

Where,

a = 2

b = 3

c = 4

Now lets plug it in.

2 < 3 and 3 < 4, then 2(2) ____ 2(3)

and lets simplify:

2 < 3 and 3 < 4, then 4 ____ 6

We can see that 4 is less than 6,

so as a is less than b, 2a is less than 2b.

The only thing changing is the coefficient being multiplied by the variables a and b.

The minimum number of trips the bus will have to make to accommodate everyone is 5.

To find the minimum number of trips the bus needs to make, we divide the total number of people by the capacity of the bus.

1. Divide the total number of people (330) by the capacity of the bus (68):

  330 / 68 = 4.85 (rounded to the nearest whole number)

2. The result is approximately 4.85, which means that 4 trips will not be enough to accommodate everyone.

3. Since we can't have a fraction of a trip, we need to round up to the nearest whole number to ensure that everyone is accommodated.

4. Therefore, the minimum number of trips the bus will have to make is 5, as it will require 5 full trips to transport all 330 people.

It's important to note that on the fifth trip, the bus will not be completely full, as only 10 people will be left to transport. However, this is the minimum number of trips needed to ensure that everyone can go sight-seeing on the bus.

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Answer:

Check the explanation

Step-by-step explanation:

Kindly check the attached images below to see the step by step explanation to the question above.

Answer:

6.890625 Tons

Step-by-step explanation:

To get total in ounces: [(14,700 x 15) = 220,500 OZ].

To convert ounces to tons: [(220,500/32,000) = 6.890625 Tons]

Answer:A. the number of students who watch 6 to 9 hours of TV

Step-by-step explanation:

Answer: I think its A but i could be wrong

Step-by-step explanation:

Answer:

the value of a - b is 4.

Step-by-step explanation:

We have been given the following two equations:

a + b = 10 ------------(1)

a² - b² = 40 -------(2)

We can factor the left-hand side of equation (2) using the difference of squares identity:

(a + b)(a - b) = 40

Substituting equation (1) into this equation, we get:

10(a - b) = 40

Dividing both sides by 10, we get:

a - b = 4

Therefore, the value of a - b is 4.

Step-by-step explanation:

if I understand this correctly :

a + b = 10

a² - b² = 40

(a² - b²) = (a + b)(a - b) = 40

10(a - b) = 40

(a - b) = 4

Answer:

r = 1.41 mm

Step-by-step explanation:

Given that,

The circumference of the flower, C = 8.9 mm

We need to find its radius. We know that,

Circumference, \(C=2\pi r\)

Where

r is the radius of the object

\(r=\dfrac{C}{2\pi}\\\\r=\dfrac{8.9}{2\pi}\\\\r=1.41\ mm\)

So, the radius of the object is equal to 1.41 mm.

Answer: C

Step-by-step explanation:

Answer:

Y=4cm

Step-by-step explanation:

We can use the relationship between the side length and area of a square to solve for Y. Let's call the area of the small square "A" and the area of the large square "B". From the problem statement, we know:

A = 1/9 * B

Since the area of a square is equal to the side length squared, we can substitute this relationship into the equation above:

Y^2 = 1/9 * 12^2

Solving for Y:

Y^2 = 1/9 * 144

Y^2 = 16

Y = sqrt(16)

Y = 4

So, the side length of the small square is 4 cm.

There is a 75% chance that it will rain here or on Mars is false because there is a 25% chance that it will rain here and not on Mars.  

It is defined as the ratio of the number of favorable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.

We have:

There is a 50% chance of rain here and a 25% chance of rain on Mars. Therefore, there is a 75% chance that it will rain here or on Mars.

The probability that it will rain here:

P(rain here) = 50%

P(rain on mars) 50%

P(not rain here) = 100 - 50 = 50%

P(not rain on mars) = 100 - 50 = 50%

P(rain here and not on mars) = 0.5×0.5 = 0.25 or 25%

Thus, there is a 75% chance that it will rain here or on Mars is false because there is a 25% chance that it will rain here and not on Mars.  

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For every 4 beef cattle there is 3 dairy cattle. For 24 dairy cattle there will be 32 beef cattle as per the given ratio of 3:4.

An ordered pair of numbers a and b, written as a / b, is a ratio if b is not equal to 0. A proportion is an equation that sets two ratios at the same value. For instance, you could write the ratio as follows: 1: 3 if there is 1 boy and 3 girls (for every one boy there are 3 girls). The ratio can be defined as the number that can be used to represent one quantity as a percentage of another. Only when the two numbers in a ratio have the same unit can they be compared. Ratios are used to compare two things.

Here,

a. No for every 4 beef cattle there is 3 dairy cattle.

b. 4/3=x/24

x=4*24/3

x=32 beef cattle

There are 3 dairy cattle for every 4 beef cattle. According to the stated ratio of 3:4, there will be 32 beef cattle for every 24 dairy cattle.

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According to the information, the vertex at the top left of the parallelogram is (4, 8.25). Thus, the other two vertices of the parallelogram are (2, 5), (9, 5), (7, 8), and (4, 8.25).

To find the vertex of the parallelogram we can use the point-slope form of a line: y - y1 = m(x - x1), where,

For the side sloping up from left to right, we can use the point (2, 5), since it is on the bottom side of the parallelogram. Plugging in the values, we get:

Simplifying, we get:

To find the point where this line intersects the top side of the parallelogram, we can use the fact that the length of the sloping side is 5 units. We know that the endpoint of the bottom side at (2, 5) is 5 units away from the intersection point in the x-direction, so we can add 5 to the x-coordinate to find the intersection point. Plugging in x = 7 into the equation above, we get:

Therefore, the vertex at the top right of the parallelogram is (7, 8).

For the side sloping down from left to right, we can use the point (9, 5), since it is on the bottom side of the parallelogram. Plugging in the values, we get:

Simplifying, we get:

To find the point where this line intersects the top side of the parallelogram, we can again use the fact that the length of the sloping side is 5 units. We know that the endpoint of the bottom side at (9, 5) is 5 units away from the intersection point in the x-direction, so we can subtract 5 from the x-coordinate to find the intersection point. Plugging in x = 4 into the equation above, we get:

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Answer:

Step-by-step explanation:

I can't give answer you by step to step cause I can't make any symbols through my computer.

Answer:

Step-by-step explanation:

Multiply the two top numbers together. Then record the first digit of the answer.

5*4 =20              Record 2

9*8 = 81              Record 8

3*6 =18               Record 1

7*5 = 35             Record 3

Answer:

Other words for subtraction:

taking away

withdrawal

abstraction

removal

discounting

Step-by-step explanation:

Answer:

there is no question 0-0

Step-by-step explanation:

I'm sorry I don't know the answer but I do have to say that you are loved and no matter how many mistakes you make you will still always be loved.                        Step-by-step explanation:

Answer:

B. A minor arc

Step-by-step explanation:

Trust me bro

The monthly payment for the loan to purchase the desktop computer system on the given installment plan is $51.91.

The formula for calculating the monthly payment is:

\(M = P * (r * (1 + r)^n) / ((1 + r)^n - 1)\)

Where:

Given:

First, we need to calculate the monthly interest rate (r):

Monthly interest rate (r) = APR / 12

= 15% / 12

= 0.15 / 12

= 0.0125

Next, substitute the values into the formula and calculate the monthly payment (M):

\(M = $1,500 * (0.0125 * (1 + 0.0125)^3^6) / ((1 + 0.0125)^3^6 - 1)\)

M = $51.91.

Therefore, the monthly payment for the loan to purchase the desktop computer system on the given installment plan is approximately $51.91.

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Answer:

121 assuming that 9\(\\ \sqrt \\\) is the square root of 9

Step-by-step explanation:

I plugged it into my calculator, but use PEMDAS and you can get the answer.

Answer: Simplify: (4)(6)(2+9)+1 =265

Step-by-step: (4)(6)(2+9)+1

=24(2+9)+1

=(24)(11)+1

=264+1

=265

Brainliest?

Answer:

constant is - 19

Step-by-step explanation:

the constant is the term in an expression with no variable attached to it.

12r + \(\frac{r}{2}\) - 19

the only term without the variable r attached to it is - 19

then the constant term is - 19

The length of the fence must be 618cm

The volume that it can hold is 1,909,620 cm³

First, the fence is just equal to the circumference of the cylinder, remember that the circumfernce of a circle of diameter D is:

C = П*D

Here we use П = 3, then:

C = П*206cm

C = 3*206cm = 618cm

Now the volume, for a cylinder of diameter D and height H, the volume is:

V = П*(D/2)²*H

Replacing the values that we know we will get:

V = 3*(206cm/2)²*60cm = 1,909,620 cm³

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The distance will be in the decimal form is :41.34

Consider the triangle :

Where “a” is the perpendicular,

“b” is the base,

“c” is the hypotenuse.

According to the definition, the Pythagoras Theorem formula is given as:

\(Hypotenuse^2 = Perpendicular^2 + Base^2\)

\(c^2 = a^2 + b^2\)

We have the points are:

15,-17 and -20, -5

To find the distance between them.

The distance of x- axis is:

15 - (-20)

= 15 + 20

= 35

The distance of y- axis is:

|17 - 5| = |-22| = 22

We can now use the Pythagorean theorem (a²+b²=c²) with our imaginary triangle:

\(x^2+y^2=(distance)^2\)

\(35^2+22^2=distance^2\)

\(1709= distance^2\\Distance = \sqrt{1709}\)

In decimal form the distance would be around 41.34.

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The option that best describes the data is The data is band numerical

This kind of data just has one variable. Since there is only one variable that varies, univariate data analysis is the most straightforward type of analysis.

In this case the one variable is World History scores exam

Data that is expressed as numbers rather than in any linguistic or descriptive form is referred to as numerical data.

Numerical data, also known as quantitative data, is gathered in number form and differs from all other sorts of number data because it can be calculated mathematically and statistically.

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Answer:

Step-by-step explanation:

The cube has 6 equal faces.

Total surface area:

Answer:

always

Step-by-step explanation: