Sandra's cell phone plan gives her unlimited minutes for $15.50 per month. She is charged $0.08 for each text message, t. Which equation models the total monthly cost, C, for the cell phone? 10 points

Answer:

(5x+3y) and (5x-3y)

Step-by-step explanation:

From the concept on difference between two squares;

a² - b² = (a+b)(a-b)

Therefore;

25x² - 9y² = (5x+3y) (5x-3y)

Therefore the dimensions of the square are (5x+3y) and (5x-3y)

Answer:

the dimensions of the rectangle are (5x + 3y) and (5x - 3y)

Step-by-step explanation:

The area of a rectangle is 25x^2 - 9y^2 square units.

To find the dimensions of a rectangle we need to factorize the expression completely.

We know that (a + b)(a - b) = a^2 - b^2

In this case: a^2 = 25x^2 and b^2 = 9y^2

So a = sqrt(25x^2) = 5x

And b = sqrt (9y^2) = 3y

Then the solution is:

(a + b)(a - b) = (5x + 3y)(5x - 3y)

Then the dimensions of the rectangle are (5x + 3y) and (5x - 3y)

Answer:

b

Step-by-step explanation:

Just divide [tex]\mathbf u[/tex] by its magnitude:

[tex]\|\mathbf u\|=\sqrt{5^2+6^2+(-1)^2}=\sqrt{62}[/tex]

So a unit vector in the direction of [tex]\mathbf u[/tex] is

[tex]\dfrac{\mathbf u}{\|\mathbf u\|}=\dfrac5{\sqrt{62}}\,\mathbf i+\dfrac6{\sqrt{62}}\,\mathbf j-\dfrac1{\sqrt{62}}\,\mathbf k[/tex]

Then multiply this by -1 to get a unit vector pointing in the opposite direction.

To find the unit vector in the direction of a vector u, divide each component by its magnitude. For a vector u=i+j, the unit vector direction is ½(i+j), and the opposite direction is ½(-i-j).

To find a unit vector in the direction of a given vector u, we must first calculate the magnitude (or length) of u and then divide each component of u by that magnitude. Let's assume the vector u has components i and j. The magnitude of u, denoted as |u|, is given by the square root of the sum of the squares of its components, which is √(i² + j²). The unit vector in the direction of u is then the vector u divided by its magnitude, Û = (i/|u|, j/|u|).

In the case of the vector u = i + j, the magnitude is √(1² + 1²) = √2, and so the unit vector in the direction of u is Û = ½(i + j). Conversely, the unit vector in the direction opposite to u would be Û = ½(-i - j) since we are simply negating each component of the unit vector in the direction of u.

Answer:

(c)

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos42°  = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{x}{12}[/tex]

Multiply both sides by 12

12 × cos42° = x, hence

x ≈ 8.9 → (c)

The answer is C hope it helps :))))

Answer:

9 1/8

Step-by-step explanation:

1. first take away the fraction part and take the whole numbers off of the numbers and add them!

1 + 3 + 5 =  9

2. now take that aside and keep that for later... now lets focus on the

1/2, 3/4, and the 1/8 these are the STARS you will be focusing on!

3. now, find the common denominator in these fractions!!!

how? here is how!

       1. lets list these fractions:

1/2, 3/4, and 1/8

the common demoninator is 8 because 1. its one of the highest in this set and 2. if you multiply 1/2 and 3/4 n the numerator and the demoentator by 4 they can create  a 8 denminator and then you can add them!

4. Next, I wont be explaning you just watch!

3        x2             6

_     =               _                  

4          x2            8    (to get to 8 from 4 you multiply by 2! so you do the same for the upper one!!!)

1      x4          4

_     =        _

2       x4        8

you dont do anything to 1/8 because its already part of the eights family! :D

5. I know, it took us a LONG way here but here it is! the final! now, time to add them!

     4/8, 6/8 and 1/8

6. lastly...

1 1/8 + 9 = 9 1/8

Hope this helpes! sorry this was so long!!! :D

Answer:

B. Step 3 is incorrect, it should be x = 10/8

Step-by-step explanation:

Answer:

The correct option is B) Step 3 is incorrect and should be [tex]x=\frac{10}{8}[/tex].

Step-by-step explanation:

Consider the provided equation.

[tex]6x-1=-2x+9[/tex]

Step 1: Use addition property of equality.

[tex]8x-1=9[/tex]

Step 2: Use addition property of equality.

[tex]8x=10[/tex]

Step 3: Use Division property of equality.

[tex]x=\frac{10}{8}[/tex]

Step 4: Now simplify.

[tex]x=\frac{5}{4}[/tex]

Now, by comparing these steps with the provided image we can concluded that the step 3 is incorrect.

Thus, the correct option is B) Step 3 is incorrect and should be [tex]x=\frac{10}{8}[/tex].

Answer:

Step-by-step explanation:

Head: 5/2= 2.5, 2.5 x 3.14 = 7.85, 7.85 x 7.85= 61.6225

Neck: 2 x 2 = 4

Body: 7 x 10= 70

Arms: 8 x 3 = 24, 24 + 24 = 48

Legs: 4 x 2 = 8, 8 + 8 = 16

Shoes: 4 x 3= 12, 12 + 12 + 24

Triangle: 3 x 4= 12, 12/2 = 6, 6 + 6 = 12

Total: 61.6225 + 4 = 65.6225, 65.6225 + 70 = 135.6225, 135.6225 + 48= 183.6225, 183.6225 + 16 = 199.6225, 199.6225 + 24= 213.6225, 213.6225 + 12 = 225.6225

Answer:

B

Step-by-step explanation:

The distance of a run compared with the number of times around a track.

The question asks for what is most likely to have a constant rate of change. This means that for every x, there is about the same y, as a constant rate of change means that there is a consistent slope, which is the x and y value. In real world terms, it means that you can expect every one value to change however much without changing randomly.

For example, when you buy a pizza, you expect a pizza to get you 8 slices. When you get two, you expect to get 16, 3 gets you 24 slices, and so on. This expectation is based off the constant rate of change, as you get 8 slices for each pizza. The slices would be modeled as y and the pizza would be modeled as x in mathematical terms in this situation.

Because we know that the track's distance doesnt change with every lap, we can expect it to have a constant rate of change. This concept is the same as the pizza as discussed earlier. Every lap would get her a certain amount of miles, and every other lap would increase the same amount.

Answer:

1

Step-by-step explanation:

Any number to the 0 power will always be 1.

Hope this helps ya out fam!

Welcome to Brainly btw!

~LoCoCoCo

Answer:

The answer should be 1

Step-by-step explanation:

Answer:

(b) I think. Im sorry if this is wrong. <3

Step-by-step explanation:

A but it’s most likely B

Answer:

B) 7.94 × 10 8 miles

Step-by-step explanation:

Given

Distance between Earth and sun=E=9.3* 〖10〗^7  Miles

Distance Between Saturn and Sun=S=8.87* 〖10〗^8  Miles  

In order to find the distance between Earth and Saturn, we have to subtract the distance between earth and sun from the distance between Saturn and sun. So

Distance between Earth and Saturn=S-E

=(8.87* 10^8 )-( 9.3* 10^7 )

As the distances are in scientific notation, to perform subtraction, the powers of 10 in both quantities have to be same, so

=(8.87*10* 10^7 )-(9.3* 10^7 )

=(88.7* 10^7 )-(9.3* 10^7)

=79.4* 10^7  Miles

It can also be written as:

Distance between Earth and Saturn=7.94* 10^8 Miles  ..

Answer:

D. 1/8

Step-by-step explanation:

Count the total sections - 8

Count how many 4s there are - 1

Reduce if possible, not possible here.

The probability of spinning getting 4 on the spinner will be 0.125.

Its basic premise is that something will almost certainly happen. The percentage of favorable events to the total number of occurrences.

The shinner has 8 equal sections.

The total number of events will be

Total event = 8 {1, 1, 1, 2, 2, 3, 3, 4}

Then the probability of spinning getting 4 on the spinner will be

Favorable event = 1 {4}

Then the probability will be

P = 1 / 8

P = 0.125

P = 12.5%

More about the probability link is given below.

https://brainly.com/question/795909

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Answer:

n = 10

Step-by-step explanation:

[tex]\dfrac{4^8}{(4^2)^{-3}} \div 4^4 = 4^n[/tex]

[tex]\dfrac{4^8}{4^{-6}} \div 4^4 = 4^n[/tex]

[tex]4^8 \times 4^6 \div 4^4 = 4^n[/tex]

[tex]4^{(8 + 6 - 4)}= 4^n[/tex]

[tex]4^{10}= 4^n[/tex]

[tex]n = 10[/tex]

Answer:

Step-by-step explanation:

[tex]\dfrac{4^8}{(4^2)^{-3}}\div4^4=4^n\qquad\text{use}\ (a^n)^m=a^{nm}\\\\\dfrac{4^8}{4^{(2)(-3)}}}\div4^4=4^n\\\\\dfrac{4^8}{4^{-6}}\div4^4=4^n\qquad\text{use}\ \dfrac{a^n}{a^m}=a^{n-m}\\\\4^{8-(-6)}\div4^4=4^n\\\\4^{14}\div4^4=4^n\qquad\text{use}\ a^n\div a^m=a^{n-m}\\\\4^{14-4}=4^n\\\\4^{10}=4^n\Rightarrow n=10[/tex]

Check the picture below.

[tex]\bf \begin{array}{llll} \stackrel{\textit{volume of a cylinder}}{V=\pi r^2 h}\\\\ V=3\left( \cfrac{\pi r^2 h}{3} \right)\\\\ V=3(33)\\\\ V=99 \end{array} \qquad \qquad \begin{array}{llll} \stackrel{\textit{volume of a cone}}{V=\cfrac{\pi r^2 h}{3}}\\\\ V=33\\\\\\\\\\ \end{array}[/tex]

notice, the volume of the cone is one-third of the cylinder's.

Answer:

A = 314 inches^2

Step-by-step explanation:

We know the diameter of the glass.  We need to find the radius

d = 2r

20 = 2r

Divide each side by 2

20/2 = 2r/2

10 =r

To find the area of the glass

A = pi r^2

A = pi * 10^2

A = pi*100

A = 100 *(3.14)

   = 314 in^2

Answer:

Step-by-step explanation: Spinner lands on Green or blue

Answer: Land on Red or Green

Step-by-step explanation:

Hope it helps!

The answer is

10+x/6

Answer:

10 + x/6

Step-by-step explanation:

This is the equation you make

Answer:

$2,783.53

Step-by-step explanation:

Answer:

$2783.53

Step-by-step explanation:

$2416.78 - $70.25 - $19.00 +$456.00 = $2783.53

Can't count the $155.00 just yet as it has not registered as a credit. NSF and the service charge are always a deduction.

the complex number z=-2+10i

is the sum of real number 2 in the -ve x asix

and imaginary number 10in the y axis

Answer: The range is the difference between the largest and the smallest number, in this case the range would be 0

Step-by-step explanation:

Answer:

You missed a few numbers there, but the answer is 5/8 I just had this question:))

Step-by-step explanation:

Answer:

2.99

Step-by-step explanation:

To find the cost of one sheet of stamps, you multiply the number of stamps (100) by the cost per stamp (29 cents), which equals 2900 cents.

To find out how much one sheet of postage stamps will cost, we need to follow these steps:

Therefore, the cost of one sheet of stamps is 2900 cents.

lemme turn upwards the prims a little, check the picture below.

notice the triangle has a base of 4 and a height of 3, and the prism is really just two triangles and 3 rectangles, so we can simply get the area of each figure and sum them up, and that's the area of the prism.

[tex]\bf \stackrel{\textit{two triangles}}{2\left[\cfrac{1}{2}(4)(3) \right]}+\stackrel{\textit{right-side rectangle}}{(5\cdot 6)}+\stackrel{\textit{left rectangle}}{(6\cdot 3)}+\stackrel{\textit{ground rectangle}}{(6\cdot 4)} \\\\\\ 12+30+18+24\implies 84[/tex]

Answer:

5 pounds of vegetables.

Answer:

Part a) The measurement of arc KL is [tex]20\°[/tex]

Part b) The measurement of arc MJ is [tex]80\°[/tex]

Step-by-step explanation:

Let

x--------> the measure of arc KL

y-------> the measure of arc MJ

we know that

The measurement of the outer angle is the semi-difference of the arcs it encompasses.

[tex]m<MEJ=\frac{1}{2}(y-x)[/tex]

substitute the given value

[tex]30\°=\frac{1}{2}(y-x)[/tex]

[tex]60\°=(y-x)[/tex]

[tex]y=60\°+x[/tex] ------> equation A

The measure of the inner angle is the semi-sum of the arcs comprising it and its opposite.

[tex]m<MFJ=\frac{1}{2}(x+y)[/tex]

substitute the given value

[tex]50\°=\frac{1}{2}(x+y)[/tex]

[tex]100\°=(x+y)[/tex]

[tex]y=100\°-x[/tex] ------> equation B

Equate the equation A and B and solve for x

[tex]60\°+x=100\°-x[/tex]

[tex]2x=100\°-60\°[/tex]

[tex]x=20\°[/tex]

Find the value of  y

[tex]y=100\°-20\°=80\°[/tex]

therefore

The measurement of arc KL is [tex]20\°[/tex]

The measurement of arc MJ is [tex]80\°[/tex]

Answer:

width is 48, length is 60

Step-by-step explanation:

Answer:  The dimensions of the field are

width = 40 ft and length = 60 ft.  

Step-by-step explanation:  Given that a field with an area of 2880 ft² has the shape of a rectangle with length 12 ft larger than the width.

We are to find the dimensions of the field.

Let w ft be the width of the given rectangular field.

Then, the length of the field will be (w + 12) ft.

According to the given information, we have

[tex]w \times (w+12)=2880\\\\\Rightarrow w^2+12w=2880\\\\\Rightarrow w^2+12w-2880=0\\\\\Rightarrow w^2+60w-48w-2880=0\\\\\Rightarrow w(w+60)-48(w+60)=0\\\\\Rightarrow (w-48)(w+60)=0\\\\\Rightarrow w-48=0,~~~w+60=0\\\\\Rightarrow w=48,-60.[/tex]

Since the measure of a side of a rectangle cannot be negative, so w = 48.

This implies that

length of the field = w + 12 = 48 + 12 = 60 ft.

Thus, the dimensions of the field are

width = 40 ft and length = 60 ft.  

The dot plot in option (C) matches the given data

What is dot plot?

"A dot plot, also known as a strip plot or dot chart, is a simple form of data visualization that consists of data points plotted as dots on a graph with an x- and y-axis."

What is data?

"A collection of facts, such as numbers, words, measurements, observations or even just descriptions of things are known as data."

∴ From the four options, the dot plot in option (C) matches the given data

Learn more about dot plot here

https://brainly.com/question/21862696

https://brainly.com/question/21571425

#Tag#SPJ2

To create a dot plot for the data, represent each number of pets by the correct number of dots above that number on a number line. Match your dot plot to the provided answer choices by looking for the same number and distribution of dots.

A dot plot is a graph that represents data by using dots over a number line. In this case, the number of pets owned by the students will be represented by the dots. The results from your teacher's query form a distinct pattern. Representing the number of pets with dots gives:

To match your dot plot to the given answer choices, look for a plot with the exact number and distribution of dots as shown in your drawing. Matching your results ensures accuracy in data representation.

https://brainly.com/question/22746300

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Answer:

The statement which describes the ratio of weight to mass and the value of x is ⇒ 98/10 ; = 110 answer B

Step-by-step explanation:

* Lets explain how to solve the problem

- The mass (kilograms) values are

  20 , 50 , x , 130 , 140

- The corresponding weight (newtons) values are

  196 , 490 , 1078 , 1274 , 1372

* Lets find the ratio between weight to mass

∵ 196/20 ⇒ divide up and down by 2

∴ 196/20 = 98/10

∵ 490/50 ⇒ divide up and down by 10

∴ 49/5 ⇒ multiply up and down by 2

∴ 49/5 = 98/10

∴ 490/50 = 98/10

∵ 1274/130 ⇒ divide up and down by 13

∴ 1274/130 = 98/10

∵ 1372/140 ⇒ divide up and down by 14

∴ 1372/140 = 98/10

- All the ratios between weight to mass equal 98/10

∴ 1078/x = 98/10 ⇒ by using cross multiplication

∴ 98(x) = 1078(10)

∴ 98 x = 10780 ⇒ divide both sides by 98

∴ x = 110

* The statement which describes the ratio of weight to mass and the

  value of x is 98/10; = 110

The ratio of weight to mass is constant. Write the ratio of weight to mass in simplest form to represent the table.  Answer: 9.8

What should the value of x be in the table? Answer 110 kilograms

Answer:

see explanation

Step-by-step explanation:

Inequalities of the type | x | > a always have solutions of the form

x < - a or x > a, thus

2x + 1 < - 5 OR 2x + 1 > 5 ( subtract 1 from both sides of both inequalities

2x < - 6 OR 2x > 4 ( divide both sides of both inequalities by 2 )

x < - 3 OR x > 2

Answer:

205

Step-by-step explanation:

Answer:

its around 297mm so any choice you have there around that number choose it

Step-by-step explanation: