help pls

- you are shopping for a new cell phone and a plan with unlimited data. select two different companies, and make a poster comparing two phone plans. be sure to include these items in your poster

- Graph with both companies on the same axes
- equation to represent each scenario
- your conclusions about the situation
- the meaning of the point of intersection
- when each plan is a better deal

phone company one:

set up fee - $20
service plan-$25/month
phone payment-$40/month

phone company two:

set up fee-$30
new phone-$700
service plan-$35/month

Answer:

\( \sf \: -4z - 5 \)

Step-by-step explanation:

Given expression,

→ (-7z - 4) - (-3z + 1)

Let's simplify the expression,

→ (-7z - 4) - (-3z + 1)

→ -7z - 4 + 3z - 1

→ (-7z + 3z) + (-4 - 1)

→ (-4z) + (-5)

→ -4z - 5

Hence, the answer is -4z - 5.

a) The average velocity of a) is -14 ft/s.

b) The average velocity of b) is 100 ft/s.

c) The average velocity of c) is 180 ft/s.

d) The average velocity of d) is 840 ft/s.

e) The instantaneous velocity when t = 2 is -24 ft/s.

(a) If the height of the ball thrown in the air is given by y = 40t -16t2,

   the average velocity can be calculated for the time period beginning  

   when t = 2 and lasting 0.5 second using the given formula:

   Average velocity = [y(2 + 0.5) - y(2)] / 0.5= [y(2.5) - y(2)] / 0.5

   Now, substituting t = 2.5 and t = 2, we get,

   Average velocity = [40(2.5) - 16(2.5)2] - [40(2) - 16(2)2] / 0.5

 = [25 - 32] / 0.5

 = -14 ft/s

 Therefore, the average velocity is -14 ft/s.

(b) If the height of the ball thrown in the air is given by y = 40t -16t2,

the average velocity can be calculated for the time period beginning

when t = 2 and lasting 0.1 second using the given formula:

Average velocity = [y(2 + 0.1) - y(2)] / 0.1= [y(2.1) - y(2)] / 0.1

Now, substituting t = 2.1 and t = 2, we get,

Average velocity = [40(2.1) - 16(2.1)2] - [40(2) - 16(2)2] / 0.1

= [42 - 32] / 0.1

= 100 ft/s

Therefore, the average velocity is 100 ft/s.

(c) If the height of the ball thrown in the air is given by y = 40t -16t2,

the average velocity can be calculated for the time period beginning

when t = 2 and lasting 0.05 second using the given formula:

Average velocity = [y(2 + 0.05) - y(2)] / 0.05= [y(2.05) - y(2)] / 0.05

Now, substituting t = 2.05 and t = 2, we get,

Average velocity = [40(2.05) - 16(2.05)2] - [40(2) - 16(2)2] / 0.05

= [41 - 32] / 0.05

= 180 ft/s

Therefore, the average velocity is 180 ft/s.

(d) If the height of the ball thrown in the air is given by y = 40t -16t2,

the average velocity can be calculated for the time period beginning

when t = 2 and lasting 0.01 second using the given formula:

Average velocity = [y(2 + 0.01) - y(2)] / 0.01

= [y(2.01) - y(2)] / 0.01

Now, substituting t = 2.01 and t = 2, we get,

Average velocity = [40(2.01) - 16(2.01)2] - [40(2) - 16(2)2] / 0.01

= [40.4 - 32] / 0.01

= 840 ft/s

Therefore, the average velocity is 840 ft/s.

(e) The instantaneous velocity can be estimated when t = 2 by finding the derivative of the function y = 40t -16t2 with respect to time t.

The derivative of y is given by:

y' = 40 - 32tAt t = 2,

y' = 40 - 32(2) = -24 ft/s

Therefore, the instantaneous velocity when t = 2 is -24 ft/s.

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Answer:

Hello your question in incomplete attached below is the complete question

answer : 0.03

Step-by-step explanation:

H represents the height of women

Determine P ( H < 60 ) using either discrete or normal model

using discrete model

P ( H < 60 ) = ∑ relative frequencies of women with height < 60 inches

                   = 0.01 + 0.02 = 0.03

Answer: 8:1

Step-by-step explanation:

To find the simplest ratio of 4 kg of metal to 500g of plastic, we need to convert both quantities to the same unit of measurement. Let's convert 4 kg to grams:

Now we have 4000 g of metal and 500 g of plastic. To simplify the ratio, we can divide both quantities by their greatest common factor (GCF), which is 500:

Therefore, the simplest ratio of 4 kg of metal to 500g of plastic is 8:1.

________________________________________________________

The total weight of metal and plastic in the ratio 8:1 is indeed 4.5 kg.

The total weight of metal and plastic is:

The simplest ratio of metal to plastic is found by dividing both quantities by their greatest common factor.

The greatest common factor of 4 kg and 0.5 kg is 0.5 kg. Dividing both quantities by 0.5 kg gives:

\(\therefore\) The simplest ratio of metal to plastic is 8:1.

To check, we can verify that:

So the total weight of metal and plastic in the ratio 8:1 is indeed 4.5 kg.

\(\overline{\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad}\)

The radius of the middle marble is 12.  To find the radius of the middle marble, we can use the concept of similar triangles and proportions.

Let's denote the radii of the marbles as follows:

r1 = radius of the smallest marble (8)

r2 = radius of the middle marble (unknown)

r3 = radius of the largest marble (18)

Since each marble is in contact with the adjacent marble(s) and with the funnel wall, we can consider the three marbles (smallest, middle, and largest) as forming a triangle within the funnel.

By observing the arrangement of the marbles, we can see that this triangle is similar to a triangle formed by connecting the centers of the marbles.

Now, let's focus on the ratio of the radii of the marbles in the two triangles:

r1 : r2 : r3

We know that r1 = 8 and r3 = 18. To find r2, we can set up the proportion:

r1 / r2 = r2 / r3

Substituting the known values:

8 / r2 = r2 / 18

Cross-multiplying:

(r2)^2 = 8 * 18

Simplifying:

(r2)^2 = 144

Taking the square root of both sides:

r2 = √144

r2 = 12

Therefore, the radius of the middle marble is 12.

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Answer:

C) -9

Step-by-step explanation:

x + 19 must be half x + 29 because triangles RBC and RST are similar by SAS and RB is half of RS and RC is half of RT.

2(x + 19) = x + 29

2x + 38 = x + 29

x + 38 = 29

x = -9

Answer:

7 marbles are blue.

Answer:

7

Step-by-step explanation:

20 divided by 100 times 35!

Answer is it 46x 12 im confused im not in this stage yet

Step-by-step explanation:

Optiοn C represents a prοpοrtiοnal relatiοnship . The values οf all the given values are prοpοrtiοnal tο each οther i.e, 1/3.

A prοpοrtiοnal relatiοnship is a mathematical relatiοnship between twο variables where the ratiο οf the twο variables is cοnstant. In οther wοrds, if we have twο variables x and y, they are said tο have a prοpοrtiοnal relatiοnship if the ratiο οf x tο y is always the same, regardless οf the values οf x and y.

This can be expressed mathematically as:

x/y = k

where k is a cοnstant called the prοpοrtiοnality cοnstant. This means that as x increases, y will increase prοpοrtiοnally, and as x decreases, y will decrease prοpοrtiοnally.

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Answer:

Is should be  1 1/8. cups of flour to make one fruitcake.

Glokk8x - The Album 8x out on all platforms

The length of the second parallelogram is 2 cm.

What are parallelograms ?
A parallelogram is a quadrilateral with opposite sides parallel and equal in length. It has two pairs of parallel sides and opposite angles are equal. Some common properties of parallelograms include:

According to the question:
To solve for x, we need to use the fact that opposite sides of a parallelogram are equal in length.

For the first parallelogram, we know that the width is 4 cm and the length is 6 cm. Therefore, the opposite side lengths are also 4 cm and 6 cm.

For the second parallelogram, we know that the width is 6 cm. Since the opposite sides are equal in length, the length of the parallelogram must be x cm.

So, we have:

Width of first parallelogram = Width of second parallelogram

4 cm = 6 cm

Length of first parallelogram = Length of second parallelogram

6 cm = x cm

Simplifying the first equation, we get:

2 cm = x

Therefore, the length of the second parallelogram is 2 cm.

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Answer: x = 4.3

Step-by-step explanation:

You can use sine:

sin(60) = x/5 ; x = 5(sin(60)) ; x = 4.3

Hope this helps!

The vertex form of the equation is in the form of y = a(x-h)^2 + k.

Step 1: Use the formula below to solve for a.

a = -1/4 * (4 - 12) = -1

Step 2: Use the formula below to solve for h.

h = -b/(2a) = 12/(2(-1)) = -6

Step 3: Use the formula below to solve for k.

k = f(h) = -(-6)^2 + 12(-6) - 4 = 36

Therefore, the vertex form of the equation is y = -(x+6)^2 + 36.

A vertex, or particular point, is a place where two or more lines or edges meet in a mathematical object. Angles, polygons, polyhedra, and graphs are where vertices are most frequently seen. Nodes and vertices in a graph are the same thing.

Recall that a parabola's General Form is y = ax2 + bx + c. The x-coordinate of the vertices, which is x = - b/2a, must first be discovered in order to find the vertex from this form. You will use this number to replace x in the parabola equation once you have determined the x-coordinate of the vertex.

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the acosta family went out to dinner. the price of the meal was $79.85. if the tip was 15%.The Acosta family paid $91.83 for the meal, including the 15% tip.

To calculate the total amount paid, we need to add the original price of the meal to the tip amount. The price of the meal was $79.85, and the tip was 15% of that amount. To find the tip, we multiply $79.85 by 0.15 (or 15% expressed as a decimal), which equals $11.98. Adding the tip of $11.98 to the original price, the total amount paid is $91.83.

In more detail, a 15% tip means that 15% of the meal price is added as an extra amount to the bill. To calculate the tip, we multiply the meal price ($79.85) by 0.15 (or 15% as a decimal), resulting in $11.98. This represents the additional amount the Acosta family paid for the tip. To find the total amount paid, we add the tip amount to the original meal price: $79.85 + $11.98 = $91.83. Therefore, the Acosta family paid $91.83 for the meal, including the tip.

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Answer:

w = sa

Step-by-step explanation:

Given

s = \(\frac{w}{a}\) ( multiply both sides by a to clear the fraction )

sa = w

Answer:

D. 79 inches.

Step-by-step explanation:

That would be the circumference of the wheel

= π * diameter

= 78.54 inches

Answer:

Step-by-step explanation:

Translated of logarithmic function:

According to given function the values are:

Correct choice is D

General equation

Here our equation

So

A certain bacteria strain needs 4 hours to double its population. If in the beginning there are 45 bacteria, after 1 day, the number of bacteria present is 2,880, after 2 days, the number of bacteria is 184,320, after 3 days, the number of bacteria is 11,796,480.

The problem can be solved using the exponential growth model.

In the given problem, the formula for the growth model is given, that is:

f(x) = 45 (64)^(x)

Where:

f(x) = total number of bacteria present after x days

To find f(x) for 1 day, 2 days, and 3 says, substitute x = 1, x = 2, and x = 3 into the formula.

f(1) = 45 (64)¹ = 2,880

f(2) = 45 (64)² = 184,320

f(3) = 45 (64)³ = 11,796,480

Hence,

after 1 day, the number of bacteria present is 2,880, after 2 days, the number of bacteria is 184,320, after 3 days, the number of bacteria is 11,796,480.

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Answer: y=3.33x+20

Step-by-step explanation:

Slope intercept form- y=mx+c

m=slope

c=y-intercept

Slope-

y2-y1/x2-x1

30-20/3-0

10/3

m=3.333333

Y-intercept= 20

So,

y=3.33x+20

Hope this helps! :)

Answer:

-2<x<3

Step-by-step explanation:

Navigation A plane flies 810 miles from Franklin to Centerville with a bearing of 75∘. Then it flies 648 miles from Centerville to Rosemount with a bearing of 32∘. 63.7° is the straight-line distance and bearing from Franklin to Rosemount.

The scenario of the plane travelling from Franklin to Centerville and subsequently from Centerville to Rosemount is depicted in the figure below.

From Franklin to Centerville, the bearing is 75°, and from Centerville to Rosemount, the bearing is 32°. The hypotenuse of the triangle created by these two legs of travel is the straight-line distance from Franklin to Rosemount, which can be computed using the Pythagorean theorem as  √(810² + 648²) = 1040 miles.

The angle between the two legs, which can be determined using the Law of Cosines as cos⁻¹((810²+648²-1040²)/(2×810×648)) = 63.7°, is the bearing from Franklin to Rosemount.

Complete Question:

Navigation A plane flies 810 miles from Franklin to Centerville with a bearing of 75∘. Then it flies 648 miles from Centerville to Rosemount with a bearing of 32∘. Find the straight-line distance and bearing from Franklin to Rosemount.

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The cost of the amplifier=$26.33

In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.

here, we have,

Step 1: Derive expression for amplifier cost and guitar cost

guitar cost=g

amplifier cost=a, but since its costs 1.54 more than 1.26 times the cost of the guitar, a=(1.26×g)+1.54=1.26 g+1.54

amplifier cost=a=1.26 g+1.54

Step 2: Derive the expression for the total cost of guitar and amplifier

Total cost of guitar and amplifier=Cost of guitar+cost of amplifier

where;

Cost of guitar=g

Cost of amplifier=1.26g+1.54

Total cost of guitar and amplifier=46

replacing;

46=g+1.26g+1.54

46=2.26g+1.54

2.26g=46-1.54

2.26g=44.46

g=44.46/2.26

g=19.67

a=(1.26×19.67)+1.54=26.33

The cost of the amplifier=$26.33

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Answer:

Step-by-step explanation:

t22 = a + (n- 1)d

t22 = 3 + 21*4

t22 = 3 + 84

t22 = 87

The measure of arc FE in the figure is 100 degrees

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

The circle and the intersecting chords

The value of arc FE represented by x is then calculated as

80 = 1/2(x + 60)

Cross multiply the equation

This gives

x + 60 = 160

Subtract 60 from both sides

x = 100

Hence, the measure of x is 100 degrees

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Answer:

\(t\geq 18\)

Step-by-step explanation:

Arithmetic operations consists primarily of operations such as addition, subtraction, multiplication, and division. So the option A is correct.

The process of adding things together is known as addition. The '+' sign represents the addition process. It entails combining two or more numbers into a single expression.

The difference between two numbers is calculated using the subtraction operation. The '-' sign represents subtraction. It is nearly identical to addition, but it is the conjugate of the second term.

Multiplication is also referred to as repeated addition. It is indicated by " or '*'. It can also be combined with two or more values to produce a single value.

Division is the inverse of multiplication and is usually denoted by ". It is made up of two terms, dividend and divisor, and the dividend is divided by the divisor to yield a single term value.

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The equation of the line that intersects the x-axis at point (3, 0) and intersects the y-axis at point (0, 5) is y = (-5/3)x + 5.

To find the equation of a line that intersects the x-axis at point (3, 0) and intersects the y-axis at point (0, 5), we can use the slope-intercept form of a linear equation, which is y = mx + b. Given the point (3, 0) on the x-axis, we know that when x = 3, y = 0. This gives us one point on the line, and we can use it to calculate the slope (m).

Using the slope formula: m = (y2 - y1) / (x2 - x1)

Substituting the values (0 - 5) / (3 - 0) = -5 / 3

So, the slope (m) is -5/3. Now, we can substitute the slope and one of the given points (0, 5) into the slope-intercept form (y = mx + b) to find the y-intercept (b).

Using the point (0, 5):

5 = (-5/3) * 0 + b

5 = b

The y-intercept (b) is 5. Therefore, the equation of the line that intersects the x-axis at point (3, 0) and intersects the y-axis at point (0, 5) is:

y = (-5/3)x + 5

To sketch the diagram, plot the points (3, 0) and (0, 5) on the x-y plane and draw a straight line passing through these two points. This line represents the graph of the equation y = (-5/3)x + 5.

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9514 1404 393

Answer:

  x² -11x +18 = (x -9)(x -2)

Step-by-step explanation:

The x-coefficient is the sum of the constants in the binomial factors; the constant term is their product. It usually works well to look for factors of the constant that have the right sum. Here, both must be negative.

  18 = (-1)(-18) = (-2)(-9) = (-3)(-6)

The factors -2 and -9 have a sum of -11, so those are the binomial constants of interest. The factorization is ...

  x² -11x +18 = (x -9)(x -2)

Answer:

d

Step-by-step explanation:

the graph of using step by step

Answer:

x = 9.32

Step-by-step explanation:

use the angles strategy