Write the equation of the line that passes through the points (7,-4) and (5,-2).
Put your answer in fully simplified point-slope form, unless it is a vertical or
horizontal line.

Answer:

250 ounces of 40% percent copper alloy

Step-by-step explanation:

Let a be the number of ounces of 40% copper alloy.

[tex].4a + .7(500) = .6(500 + a)[/tex]

[tex].4a + 350 = 300 + .6a[/tex]

[tex].2a = 50[/tex]

[tex]2a = 500[/tex]

[tex]a = 250[/tex]

250 ounces of 40% copper alloy.

The multiplication of 0.34 by 0.568 will be 0.19312 and the number of significant figures is five.

In positional notation, significant figures are the digits in a number that are trustworthy and required to denote the amount of something. Significant figures are the number of digits that add to the correctness of a value, frequently a measurement.

It should be noted that significant figures are the numbers that are reliable and are usually non zero digits.

In this case, the multiplication of 0.34 by 0.568 will be 0.19312.

Therefore, the number of significant figures is five.

Learn more about mathematical operations on:

brainly.com/question/20628271

#SPJ1

Answer:on the given cushion. We want to represent cost like 30 in terms of cost. Rita. Now by the identity sector tragical toe one by scientists. Now we know that science can't theta plus Costco Arteta is equal to one. So they get signed. Tetteh is equal to plus minus quite a tough one. Minus cause squared theta. So this will be a photo one by plus minus square wrote off one minus y squared theta.

Step-by-step explanation:

From the fig the Area model is, = 3/5(2/5 + 1/3)

Area is defined as the total space taken up by a flat (2-D) surface or shape of an object. Take a pencil and draw a square on a piece of paper. It is a 2-D figure. The space the shape takes up on the paper is called its Area. Now, imagine your square is made up of smaller unit squares.
Area of rectangle = l x b
given that, lets consider the fig as rectangle with one side 2/5+1/3 as breadth and another side 3/5

As we know , Area of rectangle = l x b

l=3/5

b=2/5+1/3

Area model= 3/5(2/5 + 1/3)

to learn more about areas visit :

brainly.com/question/27683633

#SPJ1

Answer:

The Area model for the fig. is, = 3/5(2/5 + 1/3).

Step-by-step explanation:

Area is the entire amount of space occupied by a flat (2-D) surface or an object's shape. On a sheet of paper, draw a square using a pencil. It has two dimensions. The area of a shape on paper is the area that it occupies. Consider your square as being composed of smaller unit squares.

Rectangle area = l x b

Given that, let's imagine the fig as a rectangle with a width of 2/5+1/3 and a length of 3/5.

As we know , Area of rectangle = l x b

l=3/5

b=2/5+1/3

Area model= 3/5(2/5 + 1/3)

Answer:

Angle 2 is 36 degrees because of Alternate Exterior Angle Theorem being that both of the angle outside and are alternate are Congruent.

The answer is X=11 because 2x+14=36, 2x=22, x=11. 2(11)+14=36

Using a system of equations, the solution matrix that gives the weight of a fizgig and the weight of a whatsit is:

[x y] = [5 4]

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

For this problem, the variables are given as follows:

Two fizgigs and three whatsits weigh 22 noozwhats, henec:

2x + 3y = 22.

Four fizgigs and two whatsits weigh 28 noozwhats, hence:

4x + 2y = 28.

Simplifying by 2:

2x + y = 14

y = 14 - 2x.

Replacing in the first equation:

2x + 3(14 - 2x) = 22

2x + 42 - 6x = 22

4x = 20

x = 20/4

x = 5 noozwhats.

y = 14 - 2(5) = 4 noozwhats.

Hence the solution matrix that gives the weight of a fizgig and the weight of a whatsit is:

[x y] = [5 4]

More can be learned about a system of equations at https://brainly.com/question/24342899

#SPJ1

The equation of the line with a slope of 2/7 that passes through the point (3, -4) is:

y = (2/7)*x - 34/7

Here we know that the linear equation has a slope of 2/7, so we can start by writing it as:

y = (2/7)*x + b

Now we need to find the value of b, which is the y-intercept.

To find the value of b, we can use the values on the given point, which is (3, -4), This means that when the value of x is 3, the value of y is -4, then we can replace that in the above linear equation, so we will get:

-4 = (2/7)*3 + b

-4 - 6/7 = b

-28/7 - 6/7 = b

-34/7 = b

Then we can conclude that the linear equation is:

y = (2/7)*x - 34/7

If you want to learn more about linear equations:

https://brainly.com/question/1884491

#SPJ1

Answer:

4.61x10^5

Step-by-step explanation:

You want the first number to be between 0 and 10, not equaling either. So you move the decimal place to the left. Then, you write the second half, which is that you multiply it by ten to the power of however many digits you moved to the left for, which is 5.

Answer:

96cm²

Step-by-step explanation:

1.) You can split the shape into 2: a rectangle and a triangle.

2.) The formula to find the area of the rectangle is:

length × width.

10 (length) × 8 (width) = 80cm²

3.) Then you can find the area of the triangle. The formula for finding the area of a triangle is:

½ × base × height.

½ × 4 (base) × 8 (height) = 16cm²

3.) Add the two answers together to give you the combined and total area of the shape.

80cm² + 16cm² = 96cm²

Answer:

Step-by-step explanation:

meow meow its 99

Using it's concept, the mean test score is of 4.9.

The mean of a data-set is given by the sum of all observations in the data-set divided by the number of observations.

From the frequency table, the sum of the 30 observations is given by:

0 x 3 + 1 x 2 + 2 x 6 + 3 x 1 + 4 x 1 + 5 x 3 + 6 x 2 + 7 x 4 + 8 x 4 + 9 x 2 + 10 x 2 = 146.

Hence the mean test score is given as follows:

M = 146/30 = 4.9.

The mean test score is of 4.9.

More can be learned about the mean of a data-set at https://brainly.com/question/24628525

#SPJ1

Answer:

XY = 13 cm

Step-by-step explanation:

Area of a triangle formula:

area = base × height / 2

a = bh / 2

Plug numbers into equation:

32.5 = b × 5 / 2

Multiply both sides by 2 to isolate the variable

65 = b × 5

Divide both sides by 5 to isolate the variable

13 = b

Check your work:

32.5 = 13 × 5 / 2

32.5 = 65 / 2

32.5 = 32.5

Correct

The amount saved by repaying the loan early is $831.25

The amount of discount received by purchasing supplies is $3,500

The net amount saved by purchasing supplies rather than repaying loan is $2,668.75

What is ordinary interest?

Ordinary interest is the interest computation that is based on 360-day a  year count rather than 365-day year count, hence, in determining the amount saved by paying $35,000 out of the amount due to Citizens Bank, we time-apportion the interest for 90 days with respect to 360 days not 365 days.

Amount saved in interest=$35,000*9.5%*90/360

Amount saved in interest=$831.25

Using the $35,000 to purchase serving supplies, 10% discount is given off the normal cost of $35,000

Amount saved with discount=10%*$35,000

Amount saved with discount=$3,500

The difference between discount on supplies and interest saved=$3,500-$831.25

The difference between discount on supplies and interest saved=$ 2,668.75

The other factors to consider before making the final decisions include, the fact the loan is more important than the supplies because the loan relates to the firm's financing rather than operational needs of supplies

Secondly, the amount saved in interest may be more if another loan of $35,000 can be borrowed elsewhere with significant lower interest rates

Find out more about interest savings on:brainly.com/question/21407747

#SPJ1

Answer:

I think the answer is A

Step-by-step explanation:

I'm not sure if it's correct or not but I chose the option because the atoms in substance are not chemically combined

Answer:hi

Step-by-step explanation:hello

Answer:

Step-by-step explanation:

a and b are integers

A number that can be written in the form a/b where a and b are integers. However, b cannot equal zero. Therefore a rational number

The dimensions of the original piece of cardboard are 24 inches by 12 inches

The given parameters are:

Length (l)= Width (w) + 12

Length of the square cut out = 6

Volume of box, V = 1728

The volume of the box is then calculated as

V = Length of squares * Length * Width

This gives

V = 6 * (w + 12) * w

So, we have:

6 * (w + 12) * w = 1728

Divide both sides by 6

(w + 12) * w = 288

Expand

w^2 + 12w - 288 = 0

Using a graphing calculator, we have:

w = 12

Substitute w = 12 in l = w + 12

Evaluate

l = 12 + 12

l = 24

Hence, the dimensions of the original piece of cardboard are 24 inches by 12 inches

Read more about volume at:

https://brainly.com/question/16563257

#SPJ1

Complete question

Lorene plans to make a box from rectangular sheets of cardboard from which she cuts out 6 inches squares from each corner. The length of the original piece of cardboard is 12 inches more than the width. If the box is 1728 inches cubed, determine the dimensions of the original piece of cardboard.

Answer:

point A and point B

Step-by-step explanation:

Answer:

B.

Step-by-step explanation:

I think it’s B. because it has negative 3 and negative 2 but for C., it is between negative 2 and negative 1 which can’t be correct since it would end at negative 2 and this is why it is b.

Answer:7

Step-by-step explanation: the answer is 7

Step-by-step explanation:

Divide by 4h, d=3f-g3/4h

Answer:

2 and 17

Step-by-step explanation:

2 x 17= 34

hope it helps

The x-coordinate of point R from the given coordinates is -8

The formula for calculating the midpoint of coordinates is expressed according to the formula:

M(x, y) = {(x₁+x₂)/2, (y₁+y₂)/2}

Given the coordinate points M (-3,4) and S (2, -3)

Substitute

-3 = (x₁+x₂)/2

-3 = 2+x₂/2

-6 = 2 + x₂

x₂ = -8

Similarly;

Substitute

4 = (-3+y₂)/2

4 = -3+x₂/2

8 = -3 + y₂

y₂ = 11

Hence the x-coordinate of point R from the given coordinates is -8

Learn more on midpoint here: https://brainly.com/question/5566419

#SPJ1

The transformation of the equation will be f(x) = (-x)³ + 4.

Then the correct option is D.

A function is a statement, tenet, or rule that establishes a connection between two variables. Mathematics is replete with functions, which are necessary for the construction of intricate connections.

The collection of all the values that the function may input while it is defined is known as the domain. The whole set of values that the function's output can produce is referred to as the range. The set of values that might be a function's outputs is known as the co-domain.

The function's graph is provided below.

f(x) = x³

If the graph crosses the y-axis, substitute a negative value for x.

The function will then be f(x) = (-x) ³

Add 4 if the graph has been raised by 4 units.

The equation will then be transformed to f(x) = (-x)³ + 4

Learn more about the function here:

https://brainly.com/question/5245372

#SPJ1

Answer:

Step-by-step explanation:for the triangle GIF, angle g = 80

angle f = 42 since angle FBA = 138

so angle i = 180 - 42 - 80

                 = 58

Hello,

[tex]4 = - 8 - \boxed{(-12)}[/tex]

The value of

Domain(- ∞,∞), Range(- 16, ∞), Minimum Value = -16

Function is a quadratic function. x-intercepts are -4 and 4.

The function decreasing before vertex = (-∞,0)

The function increasing after vertex = (0, ∞)

y-intercept is -16.

Function is Positive(- ∞, - 4) ∪ (4, ∞) : , Function is negative : (- 4, 4)

Interval Increasing  Domain(0,∞),

Interval Decreasing  Range(- ∞, -16)

According to the data, equation  f(x) = [tex]x^{2}[/tex] – 16

It is an upward parabola because coefficient of  is positive.

The vertex form of a parabola is

f(x) = a[tex](x - h)^{2}[/tex] . . . (2)

where, a is constant and (h , k) is vertex.

From (1) and (2), we get

a = 1, h = 0, k = - 16

So, vertex of the parabola is (0,-16).

The given function is defined for all values of x. So,

Domain : (- ∞,∞)

The value of a function which is an upward parabola cannot be less than the y-coordinate of its vertex. So

Range : (- 16, ∞)

Minimum Value = y-coordinate of vertex = -16

Function is a quadratic function.

For f(x)=0

⇒ 0  = [tex]x^{2}[/tex] - 16

⇒ 16 =  [tex]x^{2}[/tex]

⇒ x = ± 4

So, x-intercepts are -4 and 4.

The function decreasing before vertex = (-∞,0)

The function increasing after vertex = (0, ∞)

For x=0,

f(0) = [tex](0)^{2}[/tex] - 16

⇒ - 16

So, y-intercept is -16.

Function is Positive : (- ∞, - 4) ∪ (4, ∞)

Function is negative : (- 4, 4)

Interval Increasing  Domain: (0,∞)

Interval Decreasing  Range: (- ∞, -16)

Following are the key features of functions

1. Domain and Range

2. x-intercept and y-intercept

3. Positive and Negative intervals

4. Intervals of increasing, decreasing and constant behavior

5. Parent Functions

6. Maxima and Minima

Domain and Range

Domain : The domain is the set of all possible inputs or x-values. To find the domain of a function, we have to look at the x-axis of the graph.

Determining Domain :

1. Start at the origin.

2. Move along the x-axis until you find the lowest possible x-value. This is your lower bound.

3. Return to the origin.

4. Move along the x-axis until you find your highest possible x-value. This is your upper bound.

Range :The range is the set of all possible outputs or y-values. To find the range of the graph, we have to look at the y-axis of the graph.

Determining Range :

For the range, do the same thing but move along the y-axis.

x-intercepts and y-intercepts

x-intercept :

1. This is where the graph crosses the x-axis.

2. To find it algebraically, set y = 0.

3. Have many names :

x-intercept

  -Roots

  -Zeros

  -y-intercept :

1. This is where the graph crosses the y-axis.

2. To find it algebraically, set x = 0.

Positive Interval :

In the diagram below, the graph of the function is above the x-axis in the following intervals.

(-3, -1) and (2, 4)

More precisely, y is positive when x ∈ (-3, -1) and (2, 4).

So, the positive intervals for the above graph are

(-3, -1) and (2, 4)

Negative Interval :

In the diagram above, the graph of the function is below the x-axis in the following intervals.

(-∞, -3), (-1, 2) and (4, +∞)

More precisely, y is negative when x ∈ (-∞, -3), (-1, 2) and (4, +∞).

So, the negative intervals for the above graph are

(-∞, -3), (-1, 2) and (4, +∞)

To learn more about key features of functions visit here : brainly.com/question/23426439

#SPJ1

The expression is  negative one eighteenth times x plus 18.

The expression says "one sixth times the quantity 4 times x plus 18 end quantity minus 13 over 18 times x".

Therefore, the statement can be expressed as follows;

1 / 6 × 4 × x + 18 - 13 / 18 × x

Therefore, let's simplify it

1 / 6 × 4 × x + 18 - 13 / 18 × x

4x / 6 + 18 - 13 / 18 × x

4x / 6 + 18 - 13 / 18 x

combine like terms

4x / 6 + 18 - 13 / 18 x

4x / 6 - 13 / 18 x + 18

12x - 13x / 18 + 18

Therefore,

- 1 / 18 x + 18

Therefore, the expression is  negative one eighteenth times x plus 18.

learn more on equivalent expression here: https://brainly.com/question/28632376

#SPJ1

Answer: b) negative one eighteenth times x plus 3

Step-by-step explanation: :)

Answer:

d none

Step-by-step explanation:

because they are sloping down

Answer:

241.5 km

Step-by-step explanation:

The distance between London and Cardiff in kilometres is 241.5 km

Answer: 4800 decimeter

Step-by-step explanation:

0.0048 km = 48 dm

4800 dm = 0.48 km