Given the equation, 3/(y - 5) = 15/(y + 4) what is the value of y?

Answer:

D

Step-by-step explanation:

Calculate the slope m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 3, 1) and (x₂, y₂ ) = (1, - 2)

m = [tex]\frac{-2-1}{1+3}[/tex] = [tex]\frac{-3}{4}[/tex] = - [tex]\frac{3}{4}[/tex]

The slope of the line containing points  (-3, 1) and (1 ,-2) is Option (D) -3/4

The slope of a straight line gives the measure of its steepness and direction. It represents how steep a line can be.

The slope (m) of a straight line from two given points can be found by the formula,

Slope = m = (y2 - y1)/(x2 - x1)

where x1,x2 are the respective x-coordinates of the given points.

and y1,y2 are the respective y-coordinates of the given points .

By the problem, x1 = -3 , x2 = 1 , y1 = 1 , y2 = -2

Slope, m = (-2 -1)/(1 - (-3)) = -3/4

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Answer:

The volume of the pyramid is 128 cm³

Step-by-step explanation:

* Lets revise the volume of the pyramid

- The pyramid has one base and the number of side faces depends

 on the number of sides of the base

- The volume of any pyramid is 1/3 × Area of its base × its height

* Lets solve the problem

- The pyramid has a square base

- It has four side faces all of them are triangles

- It has five vertices and eight edges

- The area of the base = s², where s is the length of the side of

  the square

- The volume of the pyramid is 1/3 × s² × h, where h is the height

 of the pyramid

- The base edge length of the base is 2 cm longer than the height

 of the pyramid

- The height of the pyramid is 6 cm

∵ The length of the edge of the base is 2 cm longer than the

   height of the pyramid

∵ The height of the pyramid (h) = 6 cm

∴ The edge length of the base = 6 + 2 = 8 cm

- The area of the base = s²

∵ s = 8 cm

∴ The area of the base (s²) = 8² = 64 cm²

- The volume of the pyramid = 1/3 × s² × h

∴ Its volume = 1/3 × 64 × 6 = 128 cm³

* The volume of the pyramid is 128 cm³

The correct answer is:

128 cm^3

Hope this helps

Answer:

Option C. 0.05x+0.10(x+6)=1.35

Step-by-step explanation:

Remember that

1 nickel=$0.05

1 dime=$0.10

Let

x-----> the number of nickels

y----> the number of dimes

we know that

0.05x+0.10y=1.35 -----> equation A

y=x+6 ----> equation B

substitute equation B in equation A and solve for x

0.05x+0.10(x+6)=1.35

The correct equation that can be used to determine x, the number of nickels Rhonda has, is 0.05x + 0.10(x+6) = 1.35, which is option C from the ones presented.

In this question, we are asked to find the equation that we can use to determine the number of nickels, represented by 'x', Rhonda has. Given that Rhonda has six more dimes than nickels, the cost of dimes in Rhonda's pocket can be represented by 0.10*(x+6) because each dime is worth $0.10 and she has six more dimes than nickels. Similarly, the cost of nickels in Rhonda's pocket could be represented as 0.05*x because each nickel is worth $0.05. As the total amount of money Rhonda has is $1.35, the two amounts should sum up to 1.35. Hence, the correct equation would be 0.05x + 0.10(x+6) = 1.35, so the answer is option C.

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Answer:

  To cancel a term, it is necessary to add the opposite of the term to both sides of the equation

Step-by-step explanation:

Adding opposites creates a sum of zero. Zero added to anything else does not change the its value. So, adding the opposite of a term effectively removes it from (that side of) the equation.

Answer: Option D

D. [tex]\frac{3n^{3}}{5m^{2}}[/tex]

Step-by-step explanation:

Use the following property of the exponents to simplify the expression.

We know that:

[tex]a^{-x}=\frac{1}{a^x}[/tex]

So for the expression

[tex]\frac{3m^{-2}}{5n^{-3}}[/tex]

Using the aforementioned property we have that:

[tex]\frac{3m^{-2}}{5n^{-3}}= \frac{3*\frac{1}{m^2}}{5*\frac{1}{n^3}}\\\\\\\frac{3*\frac{1}{m^2}}{5*\frac{1}{n^3}}=\frac{3n^{3}}{5m^{2}}[/tex]

Finally the answer is the option D

Answer:

The correct answer is option D

3n³/5m²

Step-by-step explanation:

Points to remember

Identities

Xᵃ * Xᵇ = X⁽ᵃ ⁺ ᵇ⁾

X⁻ᵃ = 1/Xᵃ

Xᵃ/Xᵇ = X⁽ᵃ ⁻ ᵇ⁾

To find the correct answer  

It is given that,

3m⁻²/5n⁻³

By using identities we can write,

m⁻² = 1/m²  and 1/n⁻³ = n³

3m⁻²/5n⁻³ = 3n³/5m²

Therefore the correct answer is option D.  3n³/5m²

Answer:

1/3

Step-by-step explanation:

This question is an application of binomial distribution model. If we consider each question as an independent trial, then for each trial there are two possible outcomes, success or failure. Success in the sense that she guesses the question correctly, and failure if the guess is wrong. Now, for each trial or question the probability of success is;

1/3

This is because each question has 3 possible answers and only 1 of them is correct.

Now if Shelly guesses on 5 multiple choice test questions in a row, the probability that she will guess the 6th question correctly is still 1/3. This is because the questions represent independent trials and the probability of success is constant in each trial just like in tossing a coin.

Answer:

[tex]\frac{1}{3}[/tex]

Step-by-step explanation:

The probability isn't affected by what she guesses on the previous questions.

So basically the question is "what is the probability that Shelly will answer correctly on any one question?"

There are 3 answer choices and 1 is correct, so the probability of getting a correct answer is 1 out of 3, or, 1/3.

27 is equivalent to the number 9

Answer:

Step-by-step explanation:

There are various guidelines that one is supposed to follow when estimating affordable rent.  For example, "rent must not exceed 40%" of one's monthly salary.  You don't mention a percentage (do that next time, please), but I will use 40% as an example.

If Gavin's gross biweekly salary is $1,120, 40% of that is

0.40($1,120) = $448 biweekly.

In this example, Gavin can afford to spend no more than $448 biweekly on rent.

4=$17.60

1=$17.60/4

1=$4.40

Hole this helps :)

The unit price of a padlock, when rounded to the nearest cent, is $4.40 per padlock.

To calculate the unit price of a padlock, you'll need to determine the cost per individual padlock within a pack. In this scenario, you have a pack of 4 padlocks that costs $17.60. To find the cost of a single padlock, you can use the following formula:

Unit Price = Total Cost / Number of Padlocks

In this case:

Total Cost = $17.60

Number of Padlocks = 4

Now, let's calculate the unit price:

Unit Price = $17.60 / 4 padlocks

Unit Price = $4.40 per padlock

So, the unit price of each padlock is $4.40 when rounded to the nearest cent.

Understanding the unit price is essential for making informed purchasing decisions. It allows you to compare prices and determine whether buying in bulk (in this case, a pack of 4 padlocks) is more cost-effective than purchasing items individually.

In summary, the unit price of a padlock is $4.40 per padlock when rounded to the nearest cent. This information helps consumers assess the value of buying items in larger quantities and ensures they get the best deal for their money.

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System A --> B

Equation A1 and B1 the same, but B2 changes. The change is that the whole equation is multiplied by 4. So, the answer is B and 4 goes in the blank

System B --> C

Equation B1 and C1 are the same, but C2 changes. This change is not multiplication, so our only option now is C. In C2, the x-factor is removed, which means that elimination occurred. -12/-3 = 4, so in the blank, 4 goes in.

Answer:

  4 cm

Step-by-step explanation:

The equation of a parabola with its vertex at the origin can be written as ...

  y = 1/(4p)x^2

The problem statement tells us that one point on the parabola is (x, y) = (12, 9). We can put these values into the equation and solve for p, the distance from the focus to the vertex.

  9 = 1/(4p)(12^2)

  9×4/144 = 1/p = 1/4 . . . . . . . . multiply by the inverse of the coefficient of 1/p

Then p = 4, and the bulb is 4 cm from the vertex.

Answer

The solution for the two system of equations is (-4,2)

Explanation

Equation for slope-intercept

The equation for slope-intercept form is y = mx + b

-mx represents the slope of the equation

-b represents the y-intercept

Determine the slope and the y-intercept

The slope of the two equations can be found based on what the number in front of the x is, this term is also called the coefficient.

The y-intercept is in the form of b and is substituted normally by a positive or negative integer.

Slope: 1/4 and 2

Y-intercept: 3 and 10

You must graph these, for this problem I have provided one for you.

Determining the solution

Since this problem requires you to find the solution based on the graph you must graph the two lines and the solution is the point in which the two lines intersect.

Based on the graph I have provided for you, we can determine that the solution is (-4,2)

Checking your work

In math it's very important to check your work: plug in the solution and if it is a perfect math then the solution is correct.

[tex]\frac{1}{4} (-4)+ 3 = 2[/tex]

The solution applies to the first equation, however we must now check for the second equation.

[tex]2(-4) + 10 = 2[/tex]

The solution also applies to the second equation, so we now know that this solution is correct.

Answer:   y8

Step-by-step explanation:  You keep the base and add the exponents

The other answer is correct if you’re dealing with exponents. However, if your numbers are y5 x y3, then just multiply them: y5 x y3 = y15

This is because they are “like terms” can be directly multiplied

This is a basic algebraic word problem. Make x equal the miles you traveled. multiply that by 2 and add the 3 initial dollars, then add the one dollar tip, finally make all this equal to 20. So your equation should look like this:

2x + 3 + 1 = 20

add the 3 and 1:

2x + 4 =20

move the 4 to the right side:

2x = 16

devide both sides by 2:

x = 8

So you traveled 8 miles.

The slope is 5/3.hope this helps

Answer:

slope = [tex]\frac{5}{3}[/tex]

Step-by-step explanation:

Calculate the slope m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 3, 0) and (x₂, y₂ ) = (0, 5)

m = [tex]\frac{5-0}{0+3}[/tex] = [tex]\frac{5}{3}[/tex]

you have to calculate the SID number and then take it upon yourself and divided X it's actual number and then there's a chance and the answer would be c.72

Answer:

12

Step-by-step explanation:

I find it convenient to use the following relation:

JL -KL +5 = JM

(x +7) -(2x -4) +5 = 3x . . . . . substituting values shown

16 -x = 3x . . . . . . . . . . . . . . . collect terms

16 = 4x . . . . . add x

4 = x . . . . . . . divide by 4

JM = 3x = 3·4 . . . . . . find the length of JM

JM = 12

Answer:

Logically, the answer is the sphere, as it is the figure which gives maximum volume for the same total surface area. But I'll just solve them like you want it.

I'm just writing the numerical values without the units.Please resolve

Solid 1: Square Prism with each side of the base equal to 8 in. and a height of 8 in.

Volume = 8^3 = 512

Area = 8^2 * 6 = 384

V/A Ratio = 1.33 (We need the highest ratio, that's why they hired us)

Cost = $7.68

Solid 2: Square Pyramid with each side of the base equal to 10 in. and a height of 15 in.

Volume = 1/3 * 10^2 * 15 = 500

Slant height = [(10/2)^2 + 15^2]^(1/2) = root of 250 = 15.81

Area = 2*10*15.81 + 10^2 = 416.23

V/A Ratio = 1.20

Cost = $8.34

Solid 3: Cylinder with a radius of 4 in. and a height of 10 in.

Volume = pi*4*4*10 = 502.65

Area = 2*pi*4*4 + 2*pi*4*10 = 351.86

V/A Ratio = 1.43

Cost = $7.04

Solid 4: Cone with a radius of 7 in. and a height of 10 in.

Volume = (1/3)*pi*7*7*10 = 513.13

Slant height = [(7^2)+(10^2)]^(1/2) = 12.21

Area = pi*7*12.21 + pi*7*7 = 422.37

V/A Ratio = 1.21

Cost = $8.45

Solid 5: Sphere with a radius of 5 in.

Volume = (4/3)*pi*(5^3) = 523.60

Area = 4*pi*(r^2) = 314.16

V/A Ratio = 1.67

Cost = $6.28

Hence, Solid 5 must be the packaging model opted for

Step-by-step explanation:

Logically, the answer is the sphere, as it is the figure which gives maximum volume for the same total surface area. But I'll just solve them like you want it.

I'm just writing the numerical values without the units.Please resolve

Solid 1: Square Prism with each side of the base equal to 8 in. and a height of 8 in.

Volume = 8^3 = 512

Area = 8^2 * 6 = 384

V/A Ratio = 1.33 (We need the highest ratio, that's why they hired us)

Cost = $7.68

Solid 2: Square Pyramid with each side of the base equal to 10 in. and a height of 15 in.

Volume = 1/3 * 10^2 * 15 = 500

Slant height = [(10/2)^2 + 15^2]^(1/2) = root of 250 = 15.81

Area = 2*10*15.81 + 10^2 = 416.23

V/A Ratio = 1.20

Cost = $8.34

Solid 3: Cylinder with a radius of 4 in. and a height of 10 in.

Volume = pi*4*4*10 = 502.65

Area = 2*pi*4*4 + 2*pi*4*10 = 351.86

V/A Ratio = 1.43

Cost = $7.04

Solid 4: Cone with a radius of 7 in. and a height of 10 in.

Volume = (1/3)*pi*7*7*10 = 513.13

Slant height = [(7^2)+(10^2)]^(1/2) = 12.21

Area = pi*7*12.21 + pi*7*7 = 422.37

V/A Ratio = 1.21

Cost = $8.45

Solid 5: Sphere with a radius of 5 in.

Volume = (4/3)*pi*(5^3) = 523.60

Area = 4*pi*(r^2) = 314.16

V/A Ratio = 1.67

Cost = $6.28

Hence, Solid 5 must be the packaging model opted for

Answer:

A z coordinate is the third-dimensional coordinate in a volume pixel , or voxel . Together with x and y coordinates , the z coordinate defines a location in a three-dimensional space.

Step-by-step explanation:

Answer:

z coordinate =0 since this is xy plane.

Step-by-step explanation:

Given is a planar graph which contains a parallelogram.

The parallelogram is lying on xy plane.

The parallelogram is a planar figure drawn on xy plane.

We have in 3 dimensional cartesian system of coorindates in the xy plane z=0

Hence we have z coordinate =0

Answer:

18%

Step-by-step explanation:

The number of graduates on financial aid = 1879

The total number of students = 10730

Probability = [tex]\frac{1879}{10730}[/tex] × 100% = 0.175 × 100% ≈ 18%

[tex]\bf 2sin(\theta )cos(\theta )+\sqrt{3}cos(\theta )=0\implies \stackrel{\textit{common factor}}{cos(\theta )[2sin(\theta )+\sqrt{3}]=0} \\\\[-0.35em] ~\dotfill\\\\ cos(\theta )=0\implies \theta =cos^{-1}(0)\implies \theta = \begin{cases} \frac{\pi }{2}\\\\ \frac{3\pi }{2} \end{cases} \\\\[-0.35em] ~\dotfill[/tex]

[tex]\bf 2sin(\theta )+\sqrt{3}=\implies 2sin(\theta )=-\sqrt{3}\implies sin(\theta )=-\cfrac{\sqrt{3}}{2} \\\\\\ \theta =sin^{-1}\left( -\cfrac{\sqrt{3}}{2} \right)\implies \theta= \begin{cases} \frac{4\pi }{3}\\\\ \frac{5\pi }{3} \end{cases}[/tex]

Step-by-step answer:

Given equation:

2sin(theta)cos(theta) + sqrt(3)*cos(theta) = 0  ...........................(1)

Solve for theta for 0<=theta<=2pi.

Factor out cos(theta), we get

cos(theta) * ( 2sin(theta) + sqrt(3) ) = 0

By the zero product theorem, we can conclude

cos(theta) = 0   ...................................(2)

OR  

2sin(theta) + sqrt(3) = 0  ................. (3)

Solving (2)

cos(theta) = 0 has solutions pi/2 or 3pi/2  from the cosing curve.

Solving (3)

2sin(theta) + sqrt(3) = 0  =>

sin(theta) = -sqrt(3)/2

which has solutions  4pi/3 or 5pi/3.

So the solutions to equation (1) are

S={pi/2,  4pi/3, 3pi/2, 5pi/3}

Answer:

If you need any further help, feel free to let me know

Step-by-step explanation:

The answers are

(8-9)-(9+3)*5=-61

5+(5+5+6)+9=30

(5/3-3)= -4 over 3 or -4/3 or -1.3 or -1 1/3 depends on what your choices are but all those are correct

2*3+(4*2)/2=10

Answer:

Row B. J becomes (-2,-3), K becomes (-2,-5), and L becomes (1,-5)

The correct answer is B.

The coordinates of the triangle are ...

J = (-5, -1)

K = (-5, -3)

L = (-2, -3)

All you have to do is add 3 to all of the x's of the coords

And subtract 2 from all of the y's of the coords

Answer:

46

Step-by-step explanation:

You need to replace i with 2,3,4,5.

i=2, 6+1

3, 9+1

4, 12+1

5, 15+1

sum=46

Answer:  B) 46

Step-by-step explanation:

The summation of 3i + 1 from i = 2 to i = 5 can be calculated by finding the value of each term and then adding them up ... or.... using the formula:

i = 2: 3(2) + 1 = 7

i = 3: 3(3) + 1 = 10

i = 4: 3(4) + 1 = 13

i = 5: 3(5) + 1 = 16

       TOTAL = 46

[tex]\text{Equation: }\dfrac{a_1+a_5}{2}\times n\\\\.\qquad =\dfrac{7+16}{2}\times 4\\\\.\qquad =23\times 2\\\\.\qquad =46[/tex]

Answer:

Option A is correct.

Step-by-step explanation:

We need to find the difference of two matrices.

The matrices are:

[tex]\left[\begin{array}{cc}-4&8\\3&12\end{array}\right] - \left[\begin{array}{cc}2&1\\-14&15\end{array}\right][/tex]

We will subtract each row entry of Matrix 1 from the corresponding row entry of Matrix 2.

[tex]\left[\begin{array}{cc}-4-2&8-1\\3+14&12-15\end{array}\right]\\\left[\begin{array}{cc}-6&7\\17&-3\end{array}\right][/tex]

So, We get the answer

[tex]\left[\begin{array}{cc}-6&7\\17&-3\end{array}\right][/tex]

which matches Option A.

So, Option A is correct.

Answer:

A

Step-by-step explanation:

Subtract corresponding elements in second matrix from first matrix, that is

[tex]\left[\begin{array}{ccc}-4-2&8-1&\\3-(-14)&12-15&\\&&\end{array}\right][/tex]

= [tex]\left[\begin{array}{ccc}-6&7&\\17&-3&\end{array}\right][/tex]

Answer:Substitute the given values in the Law of Sines and find that the measure is 24.72°

The measure of the missing angle is approximately 113.28°.

Assuming that the missing angle is opposite to side c, we can use the Law of Sines to find the measure of the missing angle. The Law of Sines states that for any triangle ABC:

a/sin(A) = b/sin(B) = c/sin(C)

Substituting the given values, we have:

16/sin(42°) = 10/sin(B) = c/sin(C)

Solving for sin(B), we get:

sin(B) = 10*sin(42°)/16 ≈ 0.4182

Using the inverse sine function, we can find the measure of angle B:

B ≈ sin⁻¹(0.4182) ≈ 24.72°

Now, we can use the fact that the angles of a triangle add up to 180° to find the measure of the missing angle:

A + B + C = 180°

A + 42° + 24.72° = 180°

A ≈ 113.28°

Therefore, the measure of the missing angle is approximately 113.28°.

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The answer is B)13

The rest of these words are to reach the minimum 20 words of an answer lol

4x-3(x-2)=21

4x-3x+6=21

4x-3x=21-6

x=15

is this right? let's check

4(15)-3(15-2) = 21? yes

For this case we have the following expression, we must find the value of the variable "x":

[tex]4x-3 (x-2) = 21[/tex]

We apply distributive property to the terms of the parenthesis taking into account that:

[tex]- * + = -\\- * - = +\\4x-3x + 6 = 21[/tex]

We add similar terms:

[tex]x + 6 = 21[/tex]

We subtract 6 on both sides of the equation:

[tex]x = 21-6\\x = 15[/tex]

Now, the value of x is 15

Answer:

[tex]x = 15[/tex]

ANSWER

A. 15 units^2

EXPLANATION

The area of kite is half the product of the diagonals.

The first diagonal has vertices at,

T(0,0) and R(5,5).

The length of this diagonal is

[tex]TR = \sqrt{ {5}^{2} + {5}^{2} } [/tex]

[tex]TR = \sqrt{25 + 25} [/tex]

[tex]TR = \sqrt{50} =5 \sqrt{2} [/tex]

The other diagonal has vertices at;

Q(0,3) and S(3,0).

The length of this diagonal is

[tex]QS = \sqrt{ {3}^{2} + {3}^{2} } [/tex]

[tex]QS = \sqrt{ 9+ 9 } [/tex]

[tex]QS = \sqrt{18} = 3 \sqrt{2} [/tex]

The area of the kite is

[tex] = \frac{1}{2} \times 3 \sqrt{2} \times 5 \sqrt{2} [/tex]

[tex] = 15 \: {units}^{2} [/tex]

Answer:

2π/3 cm

Step-by-step explanation:

The formula for arc length is s = rФ, where Ф is the central angle in radians.

Thus, we must convert 30° into radians:  that'd be π/6 rad.

Then the arc length here is s = rФ = (4 cm)(π/6 rad) = 2π/3 cm