CAN SOMEONE ANSWER ALL THIS I KNOW ITS REALLY HARD

1+1

2+1

2+2

r u never gonna give me up

Answer:

= −3

Step-by-step explanation:

Answer: this is really simple all you have to do is divide 36 by -12 which gives you -3 the final answer is k= -3

Step-by-step explanation:

why divide? if you see on ur left side you see -12k the (k) is being multiplied with the -12 so to solve the equation you need to do the inverse or the OPPOSITE the opposite of multiplying is dividing 36 divided by -12 gives us -3 (12*3=36 just put the negative sign in the front)

C

The mistake the arrangers made is in the second inequality. They considered the number of caps to be bought should be at least 5 times greater than the number of blouses, not the other way around. The correct inequality should be C

The correct answer is D) The first inequality should be s + h ≤ 1800.

The organizers made an error in the first inequality. The given inequality 10s + 8h ≤ 1800 represents the total cost of buying shirts (10s) and hats (8h) should be less than or equal to $1800. However, this does not take into account the fact that the organizers want to buy at least 5 times as many shirts as hats, as indicated by the second inequality h ≥ 5s.

The correct way to represent this constraint is by using the equation s + h ≤ 1800, which ensures that the total number of shirts and hats purchased does not exceed $1800 in cost. This is because the organizers want to make sure that the total cost of shirts and hats combined does not exceed the budget of $1800.

Answer:

The answer is

C. The mapping represents y as a function of x, because each x-value corresponds to exactly one y-value.

Step-by-step explanation:

In mathematics, mapping is used synonymously to a function, and a function is basically a relation between two values or expressions say y and x

like the difference equation relating y and x.

In a function, for every value of x plugged into the function there is always a corresponding value of y.

Example.

Given the function

y=2x+5.

find the value of y when x=0

we are going to substitute x=0 and solve

y=2(0)+5

y=5

so for x=0 y=5

Account B has the greater principal. Account A earned $3.75 at a 2% rate, implying a principal of $150. Account B earned $18.75 at a 5% rate, indicating a principal of $300.



 Let's start by calculating the principal for Account A. We know that the simple interest rate for Account A is 2% and the interest earned is $3.75. The formula for simple interest is:

Interest = Principal * Rate * Time

Plugging in the given values, we can solve for the principal:

$3.75 = Principal * 0.02 * (15/12)

Simplifying the equation:

$3.75 = Principal * 0.025

To isolate the principal, we divide both sides of the equation by 0.025:

Principal = $3.75 / 0.025

Principal = $150

Therefore, the principal for Account A is $150.

Next, let's calculate the principal for Account B. We know that the simple interest rate for Account B is 5% and the interest earned is $18.75. Using the same formula as before:

$18.75 = Principal * 0.05 * (15/12)

Simplifying the equation:

$18.75 = Principal * 0.0625

To isolate the principal, we divide both sides of the equation by 0.0625:

Principal = $18.75 / 0.0625

Principal = $300

Therefore, the principal for Account B is $300.

Comparing the principal amounts, we can see that the principal for Account B is greater than the principal for Account A. Therefore, Account B has the greater principal.

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please check the answer

Answer:

V=11550cm³

Step-by-step explanation:

V=1/3pier²h

V=1/3×22/7×21²×25

V=22×21×25

V=11550cm³

Answer:

7/13

Step-by-step explanation:

(0.538461538)

Answer:

x=7

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

Question:

Minimum number of balls to ensure there is at least one ball of each colour marked with each number.

The quantity of distinct numbers are:

red: 4

Yellow 3

Blue 2

So the minimum number of balls to satisfy the given requirements is

4+3+2= 9

the difference between the two possible lengths of the third side of the triangle is approximately 3.2 inches.

To find the possible lengths of the third side of the right triangle, we can use the Pythagorean theorem, which states that in a right triangle, the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides.

Let's denote the two given sides as a = 5 inches and b = 8 inches.

Using the Pythagorean theorem, we can calculate the two possible lengths of the third side (c) as follows:

c₁ = √(a² + b²)

c₁ = √(5² + 8²)

c₁ = √(25 + 64)

c₁ = √89

c₁ ≈ 9.4 inches (rounded to the nearest tenth)

c₂ = √(b² - a²)

c₂ = √(8² - 5²)

c₂ = √(64 - 25)

c₂ = √39

c₂ ≈ 6.2 inches (rounded to the nearest tenth)

The difference between the two possible lengths of the third side is:

c₁ - c₂ ≈ 9.4 - 6.2 ≈ 3.2 inches (rounded to the nearest tenth)

Therefore, the difference between the two possible lengths of the third side of the triangle is approximately 3.2 inches.

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Answer:

K would equal to:

K= 50

Hope that helps! :)

Step-by-step explanation:

The system of equations involving 1/3x - 3y = -4 and x - 9y = -12 has infinite number of solutions.

A system of linear equations is a set of two or more equations which includes common variables. To solve system of equations, we must find the value of the unknown variables used in the equations that must satisfy both equations.

There are three methods that can be used to solve system of linear equations.

1. Elimination

2. Substitution

3. Graphing

Using substitution method, given two linear equations in x and y,

1/3x - 3y = -4     (equation 1)

x - 9y = -12     (equation 2)

Using the second equation, find the value of one variable, lets say x, in terms of the other.

x - 9y = -12     (equation 2)

x = 9y - 12

Substitute the equation of x to the first equation.

1/3x - 3y = -4     (equation 1)

1/3(9y - 12) -3y = -4

3y - 4 - 3y = -4

Combining the all terms containing the variable y on one side and the constants on the other side of the equality, and solving for y.

3y - 3y = -4 + 4

0 = 0

Since we did not get unique values for x and y, check if one of the equations is a simplified form of the other. Multiply the first equation with 3.

1/3x - 3y = -4     (equation 1)

3(1/3x - 3y) = 3(-4)

x - 9y = -12

Since this new equation is the same with the second equation, this means that the lines of the two equations are the same(overlapping). Hence, the system of equations has infinite number of solutions.

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Answer:

√20 units

Step-by-step explanation:

\(Solution,\\\\\hookrightarrow Here,\\\\\hookrightarrow Coordinate\:of\::\\\\\hookrightarrow A(4,5),B(2,1),C(4,1)\\\\Now,\\\\Let,\\\\(x_1,y_1)=(4,5)\\\\(x_2,y_2)=(2,1)\\\\Using\:distance\:formula\\\\Distance\:of\:AB=\sqrt{(x_2-x_1)^{2}+(y_2-y_1)^{2}} \\\\Distance\:of\:AB=\sqrt{(2-4)^{2}+(1-5)^{2}} \\\\Distance\:of\:AB=\sqrt{(2-4)^{2}+(1-5)^{2}} \\\\Distance\:of\:AB=\sqrt{(-2)^{2}+(-4)^{2}} \\\\Distance\:of\:AB=\sqrt{4+16} \\\\Distance\:of\:AB=\sqrt{20}\: units\)

Answer:

in the first diagram

there is a statement that if 2 lines are cut by a traversal then the corresponding angles are equal

in this the 2 angles are corresponding and equal that is why they are parallel

in the second pic

I can't understand what to do if you tell me then I'll answer in comments

One microfarad is equivalent to 1,000,000 picofarads. A microfarad is a unit of capacitance, and a picofarad is also a unit of capacitance. The prefix "micro" means "10^-6", and the prefix "pico" means "10^-12".

Therefore, one microfarad is equal to 10^-6 farads, and one picofarad is equal to 10^-12 farads. To convert one microfarad to picofarads, we can use the following formula:

1 \mu F = 10^{-6} F = 10^{-6} \times 10^{12} pF = 10^{6} pF

Therefore, one microfarad is equivalent to 1,000,000 picofarads.

The prefix "micro" is often used in electronics to denote a very small quantity. The prefix "pico" is even smaller than the prefix "micro", and is often used to denote very small quantities in electronics and physics.

The unit of capacitance is the farad, and it is named after Michael Faraday. The farad is a very large unit of capacitance, and is rarely used in practice. Smaller units of capacitance, such as the microfarad and the picofarad, are more commonly used.

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The value of the computer with initial value $4600 after 3 years using the exponential model is equal to $2422.39 (approximately).

Cost of new computer = $4600

Book value after 2 years = $3000

use the exponential model,

y = a × \(e^{(-kt)}\)

where y is the value of the computer after t years,

a is the initial value of the computer when t=0,

k is a constant,

and e is the base of the natural logarithm.

Find the value of k using the information given,

y(2) = 3000

⇒3000 = a × \(e^{(-2k)}\)

y(0) = 4600

⇒ 4600 = a × e⁰

⇒ 4600  = a

Dividing the two equations, we get,

⇒3000/4600 =  \(e^{(-2k)}\)

⇒0.6522 =   \(e^{(-2k)}\)

Taking the natural logarithm of both sides, we get,

⇒ -2k = ln (0.6522 )

Solving for k, we get,

⇒ k = -0.4276 /2

⇒ k = - 0.2138

So the exponential model for the value of the computer is,

y = 4600 × \(e^{(-0.2138 \times t)}\)

To find the value of the computer after 3 years, we can plug in t=3,

y(3) = 4600 × \(e^{(-0.2138 \times 3)}\)

      = 4600 × \(e^{(-0.6413)}\)

      = 4600 × 0.5266

      = 2422.39

Therefore, the value of the computer after 3 years using the exponential model is approximately $2422.39.

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Answer:

9.42 (sorry if im late)

Step-by-step explanation:

I believe that if you take the radius and multiply it by pi (3.14), you get the circumfrence

3.14 x 3 = 9.42

Answer:

p =  y + 2.55

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  

Please have a look at the attached photo.  

The price of a gallon of milk was $2.65. The price rose y dollars after the last hurricane. Then the price dropped $0.15 and later rose again by $0.05. Which expression represents the current price of milk

My answer:

Let p is the price of milk

Given the information:

<=> p = 2.65  

<=> p = 2.65   + y

<=> p =  2.65   + y  - 0.15

<=> p = 2.65  + y  - 0.15  + 0.05

<=> p =  y + 2.55

Hope it will find you well.

The Hypotenuse-Leg Theorem states that two right triangles are congruent if and only if the hypotenuse and a leg of one right triangle are congruent to the hypotenuse and a leg of the other right triangle.

From this theorem, we know that corresponding sides must be equal for those triangles to be congruent. Then, we get two equations

Let's start solving the equation for b.

We can start by subtracting 18 from both sides of the equation

Now, we can subtract b from both sides.

And finally, dividing both sides by 3 we have

Now we have our b value. b = 10. Now, let's calculate the value for c.

We can start by adding 22 to both sides of the equation

Now, we can just subtract c from both sides to get our value

Then, we have our c value, c = 20.

The ΔH values associated with the dissolution of lithium chloride that are exothermic involve the release of heat energy. When a substance dissolves in a solvent, it can either release heat (exothermic) or absorb heat (endothermic).

Here are the steps to determine if the dissolution of lithium chloride is exothermic:

1. Look for the chemical equation that represents the dissolution of lithium chloride. In this case, it would be:

LiCl(s) → Li+(aq) + Cl-(aq)

2. Examine the enthalpy change (ΔH) associated with this chemical equation. If the ΔH value is negative, it indicates an exothermic process, meaning that heat is released during the dissolution. If the ΔH value is positive, it indicates an endothermic process, meaning that heat is absorbed during the dissolution.

So, to identify the exothermic ΔH values associated with the dissolution of lithium chloride, you need to find experiments or reliable sources that provide the enthalpy change values for this reaction.

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For the rational function r(x) = (x+1)(x-3)/(x+3)(x-7), the x-intercepts are found by setting the numerator equal to zero and solving for x:

(x + 1)(x - 3) = 0

This gives x=-1 and x=3 as the x-intercepts.

For the same function, the vertical asymptotes are found by setting the denominator equal to zero and solving for x:

(x + 3)(x - 7) = 0

This gives x=-3 and x=7 as the vertical asymptotes.

For the rational function r(x) = (x+1)(x-3)/(x+3)(x-6), the vertical asymptotes are found by setting the denominator equal to zero and solving for x:

(x + 3)(x - 6) = 0

This gives x=-3 and x=6 as the vertical asymptotes.

For the same function, there are no x-intercepts.

For the rational function r(x) = (x+1)(x-3)/(x+3)(x-4), the horizontal asymptote can be found by looking at the degrees of the numerator and denominator. Since the degree of the numerator is 2 and the degree of the denominator is 2, the horizontal asymptote is given by the ratio of the leading coefficients, which is 1/1=1. Therefore, the horizontal asymptote is y=1.

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Data:

Green pencils: 31%

Total of pencils: 100%=60pencils

If the 100% is the total of the pencils you can find the number of green pencils with a rule of three:

Answer:

Step-by-step explanation:

{3 x + 4 = y, 3 x = 4 y + 11}

{y = 3 x + 4, y = (3 x)/4 - 11/4}

{2 (3 x - y) = -8, 4 y - 3 x = -11}

The volume of the remaining piece of ice cube is 6911.5 cubic cm

From the question, we have the following parameters that can be used in our computation:

The figure

Where, we have

Radius, r = 20/2  = 10 cm

Height, h = 33 cm

The volume of the remaining piece is calculated is

V = 2/3πr²h

Substitute the known values in the above equation, so, we have the following representation

V = 2/3 * 22/7 * 10² * 33

Evaluate

V = 6911.5

Hence, the volume of the remaining piece is 6911.5 cubic cm

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Answer:

Step-by-step explanation:

Use of formula:

a) Find each part of distance and add together. Convert minutes to hours.

b) Average speed is:

Answer:

(a)  142 km

(b)  40.57 km/h (2 d.p.)

Step-by-step explanation:

\(\boxed{\sf Distance=Speed \times Time}\)

Given:

Substitute the given values into the distance formula to find the distance travelled:

\(\implies \sf Distance = 35 \times 2 = 70\;km\)

Given:

Substitute the given values into the distance formula to find the distance travelled:

\(\implies \sf Distance = 48 \times 1.5 = 72\;km\)

Therefore, the total distance travelled is:

\(\implies \sf 70 + 72 = 142 \; km\)

\(\boxed{\sf Average\;speed=\dfrac{Total\;distance}{Total\;time}}\)

Given:

Substitute the given values into the average speed formula to find the average speed over the entire journey:

\(\implies \sf Average\:speed=\dfrac{142}{3.5}=40.57\;km/h\;(2\;d.p.)\)

Answer:

Step-by-step explanation: 2 4 1 5 2 1 3 1 3 1 3 4 2 44 5 3 i dont know

Answer: 5.57

Step-by-step explanation:

The square root of 31 is 5.56776436 and if you round that 2 decimals places you get 5.57 bc anything higher than 5 gets rounded up to the next number.

Answer:

I think its false

Step-by-step explanation:

the car went 8 second faster

The intervals that represent the number line are given as follows:

b. \((-\infty, -5] \cup [8, \infty)\)

The first painted interval is of numbers to the left of x = -5(inclusive due to closed circle), hence:

\((-\infty, -5]\)

The second interval is of numbers to the right of x = 8, also inclusive, hence:

\([8, \infty)\)

Hence the union is given by:

\((-\infty, -5] \cup [8, \infty)\)

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Answer:

B

Step-by-step explanation:

mark me Brainliest pls

Answer:

Step-by-step explanation:

a.)

\(4880.76=4000(1+.04/4)^{4x}\\\\1.22019=1.01^{4x}\\\frac{\ln{1.22019}}{\ln{1.01}}=4x\\x= 4.999999= 5\)

b.)

\(5395.4=4000(1+x/12)^{12*5}\\1.34885=(1+x/12)^{60}\\\sqrt[60]{1.34885} =1+x/12\\x= 0.0599999772677= .06\)

c.)

\(\i)\\100*(1+.1255)= 112.55\\\\2)\\100*(1+.1218/2)^2= 112.550881= 112.55\)