Need help Giving 13 points

Answer: C= 0.25 + 0.20n

Step-by-step explanation:

Let n be the number of ounces of the letters.

As per given,

Cost per ounce = $0.45

Additional cost per ounce = $0.20

So, the equation to represent the total cost, C, to mail a first class letter that  weighs n ounces will be

C= 0.45 + (n-1)(0.20)

⇒ C= 0.45 + 0.20n-0.20

⇒ C= 0.25 + 0.20n

Hence, the required equation is  C= 0.25 + 0.20n .

Answer:

(-2,4)

Step-by-step explanation:

The domain is the values for the input

X goes from -2 to 4  not including the endpoints

(-2,4)

Answer: x = 21

Step-by-step explanation: First, isolate the x term by

subtracting 5 from both sides of the equation.

We get 1/3x = 7.

Next, multiply both sides of the equation by

the reciprocal of 1/3 which is 3/1 to get x by itself.

On the left, 3/1(1/3) cancels and on the

right when we multiply 7(3/1), we get 21.

So we have x = 21.

Step-by-step explanation:

Michelle orders soup, or she orders salad goes with disjunction.

The fireworks were loud and colorful goes with conjunction.

If the watch is broken, then it it showing the wrong time goes with conditional.

Answer:

The average rate of change for g(x) is      { g(x+h)-g(x) }/h

In our case,

                             { log(5+1) - log(3+1) }/(5-3) =    (.778-.602)/2 = .088

Compare it to the derivative of log(x+1) for the values: the derivative is D = (1/ln10)(1/(x+1))

at x = 3      D = .1086

at x = 4      D =  .0869

at x = 5      D = .0724

Take the average of D over the interval and you get .0893  and very close to the midpoint of the x values

Step-by-step explanation:

Answer:

Step-by-step explanation:

Let's solve:

As we know that the sum of angles of traingle adds to 180°

[tex] \sf{2y - 5 + y + 20 + 3y - 5 = 180}[/tex]

Collect like terms

⇒[tex] \sf{6y - 5 + 20 - 5 = 180}[/tex]

⇒[tex] \sf{6y + 15 - 5 = 180}[/tex]

⇒[tex] \sf{6y + 10 = 180}[/tex]

Move constant to right hand side and change it's sign

⇒[tex] \sf{6y = 180 - 10}[/tex]

Calculate the difference

⇒[tex] \sf{6y = 170}[/tex]

Divide both sides of the equation by 6

⇒[tex] \sf{ \frac{6y}{6} = \frac{170}{6} }[/tex]

Calculate

⇒[tex] \sf{y = 28.34}[/tex]

Now, let's replace the value:

⇒[tex] \sf{2y - 5 = 2 \times 28.34 - 5 = 51.68}[/tex]

⇒[tex] \sf{y + 20 = 28.34 + 20 = 48.34}[/tex]

⇒[tex] \sf{3y - 5 = 3 \times 28.34 - 5 = 80.02}[/tex]

Hope I helped!

Best regards!!

Answer:

51 2/3 , 48 1/3 and 80 degrees.

Step-by-step explanation:

The 3 angles add up to 180 degrees.

2y - 5 + y + 20 + 3y - 5 = 180

6y + 10 = 180

6y = 180 - 10

6y = 170

y = 170 / 6 = 28 1/3 degrees.

So the 3 angles are  2(28 1/3) - 5,   28 1/3 + 20 and 3(28 1/3) - 5.

Answer:

6 : 8, 3/4, 3 to 4

Step-by-step explanation:

As counted on the picture, there are:

The ratio pens to pencils is:

So there are 3 correct choices

this will be helpful and don't forget to mark me

I found this on B i n g because I don't have a map of India.

Rice is mainly grown and eaten in South and East India, while wheat is predominantly grown and eaten in North and West India.

(The first picture is top ten).

(The second one is all).

♡ Anyways I hope this helped! ♡

❀ Have an amazing day or night! ❀

Brainiest is appreciated! ♡

Every point on the circle is the same distance away from the center. The distance from any point to the center is exactly the radius, and twice that is the diameter.

Answer:

Here is my answer I hope this helps <(^w^)>

The correct expression is [tex]6^{x} = 256[/tex]

An exponential equation is an equation with exponents where the exponent a part of the exponent is a variable.

Given an exponential equation, [tex]log_{6} 256 = x[/tex]

Using formula :-

[tex]y = log_{a} x \\x = a^{y}[/tex]

[tex]log_{6} 256 = x[/tex]

[tex]6^{x} = 256[/tex]

Hence, the correct answer is [tex]6^{x} = 256[/tex]

For more references on exponential equation, click;

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Answer:

7.6525 hours

Step-by-step explanation:

11 / 4 = 2.75 so he spent 2.75 h doing his HW.

and he spent (11/4) x 2.75 practicing piano

(11/4) x 2.75 = 7.6525

The number of hours Carlos spends practicing piano will be 7.6525 hours.

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

It is given that 11 / 4 = 2.75  he spent 2.75 h doing his HW. and he spent (11/4) x 2.75 practicing piano.

The number of hours Carlos spends practicing piano will be calculated as below:-

(11/4) x 2.75 = 7.6525 hours

Therefore,  the number of hours Carlos spends practicing piano will be   7.6525 hours.

To know more about expression follow

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Answer:

one solution

Step-by-step explanation:

3x − 7 = 4 + 6 + 4x

Combine like terms

3x-7=4x+10

Subtract 3x from each side

-7=x+10

Subtract 10 from each side

-17 =x

There is one solution

Answer:

10 steps

Step-by-step explanation:

Answer:

  f(x) = |x -1|

Step-by-step explanation:

The parent absolute value function f(x) = |x| is shifted one unit to the right. We know that replacing x with (x-h) will shift a function h units to the right. Here, we want h=1. The shifted function is ...

  f(x) = |x -1|

Answer:

x=6 b=45

Step-by-step explanation:

45=5x-15. 45-15=30. 5x=30. x=6. b=45

Answer: circumference of circle=2πr or πd(since d=2r)

2ײ²/7×⁵/2

Two cancels two

22×5/7

=110/7

=15•71

Answer:

B

Step-by-step explanation:

Let's turn these fractions into decimals.

A: 1/3 = 0.333333......

B: 1/5 = 0.2

C: 1/7 = 0.142857143142....

D: 1/9 = 0.1111111.....

As you can see, the only decimal expansion that terminates, or has a finite number of digits after the decimal point, is 1/5.

Answer:

8ft x 6ft

Step-by-step explanation:

For this problem, we want to create measurements of length and width that double our current area.  First we need to find the current area.

C_Length = 6 ft

C_Width = 4 ft

C_Area = C_Length * C_Width

C_Area = 6 ft * 4 ft = 24 ft^2

Now we want our new area to be double the old area.

N_Area = 2C_Area

N_Area = 2 * 24 ft^2

N_Area = 48 ft^2

Now we simply need to find the increase in width and length, distributed equally, that will create the new area.

N_Area = (C_Length + x) * (C_Width + x)

Where x is the amount that each variable is increased by to create the new area.

Now we simply solve for x.

N_Area = (C_Length + x) * (C_Width + x)

48 = (6 + x) * (4 + x)

48 = 24 + 10x + x^2

0 = -24 + 10x + x^2

Now we can either apply the quadratic formula or attempt to factor using the constant break down method.

(x + 12) (x - 2) = 0

x = -12; x = 2

Note that we will choose x = 2 since the other option would require us to have negative material, which is impossible.

Now we can check to validate our answer by plugging in the value of x.

48 ?= (6 + 2) * (4 + 2)

48 ?= (8) * (6)

48 == 48

Thus, we have found the dimensions of the new aquarium, 8ft x 6ft.

Cheers.

Answer:

If the total scored was 123 and your team scored 67 in the first half then in the second half they will score 56 points.

Step-by-step explanation:

Answer:

12 grams

Step-by-step explanation:

We can see on the plot that absolute error is spread between zero and 12 grams.

The largest absolute error is approximately 12 grams as per plot on the top right. It gives the bag weight of 512 grams vs advertised 500 grams.

Answer:

It’s 11

Step-by-step explanation:

Answer:

Christianity and Islamic religion

Step-by-step explanation:

Based on the picture you provided It would be Christianity and Islamic religion.

Based on the Events of the Common Era (year 0) was the birth of Jesus of Nazareth. From Year 0 to year 29 Jesus of Nazareth expanded his faith. During the 29th year Jesus of Nazareth was crusified in Jeruselem.

Estimated around Year 570 Muhammad  (the Prophet of Islam) was born and rose his religion to great heights. In 632 Muhammad died.

Hope this helps

Answer:

Christianity and Islam

Step-by-step explanation:

Answer: True

Step-by-step explanation:

Given: The ratio of the number of boys to the number of girls at Liam's school is 4:5.

There are 270 students at his school.

Then, Total boys = [tex]\dfrac{4}{4+5}\times270=\dfrac{4}{9}\times270=120[/tex]

Total girls =[tex]\dfrac{5}{4+5}\times270=\dfrac{5}{9}\times270=150[/tex]

Clearly, (Number of girls) > (Number of boys)

Difference =  (Total girls) - (Total boys)

= 150-120

= 30

So,  Statement 3: "There are exactly 30 more girls than boys". is absolutely true.

Answer:

[tex]\bold{x = \dfrac{8}{9}}[/tex]

Step-by-step explanation:

We have to rewrite the below as simplified fraction.

[tex]\large{0.\overline{8} = {?}}[/tex]

Solution:

Let [tex]x =0.\overline 8[/tex] which means [tex]x =0.888888.......[/tex]

Here a bar over 8 means that there the given decimal value is non terminating and there are a large numbers of 8 present after the decimal.

To solve the given non terminating decimal as fractions, we will have to eliminate the bar term from the given value.

So, we can rewrite [tex]x[/tex] as:

[tex]x =0.8\overline8[/tex] ......(1)

Now, let us multiply the above with 10.

[tex]10x = 0.8\overline 8 \times 10\\\Rightarrow 10 x= 8.\overline8[/tex] ....... (2)

Now, let us subtract (1) from (2):

[tex]10x-x=8.\overline8 - 0.\overline8\\\Rightarrow 9x = 8\\\Rightarrow \bold{x = \dfrac{8}{9}}[/tex]

So, in simplified fractions:

[tex]\large{0.\overline{8} = \bold{\dfrac{8}{9}}}[/tex]

Answer:

There is no statements/info.

Step-by-step explanation:

Answer:

40 field goals

Step-by-step explanation:

Represent 2-point with x and 3-point with y;

Given

[tex]x = 3y[/tex]

[tex]2x + 3y =90[/tex]

Required

Determine x and y

[tex]x = 3y[/tex]

[tex]2x + 3y =90[/tex]

Substitute 3y for x in [tex]2x + 3y =90[/tex]

[tex]2(3y) + 3y = 90[/tex]

[tex]6y + 3y = 90[/tex]

[tex]9y = 90[/tex]

Divide both sides by 9

[tex]y = 10[/tex]

Substitute 10 for y in [tex]x = 3y[/tex]

[tex]x = 3 * 10[/tex]

[tex]x =30[/tex]

The number of field goals = x + y

[tex]x + y = 30 + 10[/tex]

[tex]x + y = 40[/tex]

Hence, the number of field goals is 40

Answer:

Hey there!

Three basic rules determine this:

Positive Numbers are always greater than Negative Numbers.

If both are positive, the number with the greater magnitude is larger.

If both are  negative, the number with the smaller absolute value is larger.

Let me know if this helps :)

Answer:

23x15=23x(10+5)                     Method 1 and 5

=23x10+23x5

=230+115

23x15=(20+3)x15                      Method 2

=20x15+3x15

=300+45

23x15=(20+3)x(10+5)

   =20x10+20x5+3x10+3x5      Method 3 and 6

=200+100+30+15

Step-by-step explanation:

Answer:

Vertex: ( − 5 , − 9 ) Focus: ( − 5 , − 35 4 ) Axis of Symmetry: x = − 5 Directrix: y = − 37 4 Select a few x values, and plug them into the equation to find the corresponding y values. The x values should be selected around the vertex. Tap for more steps... x y − 7 − 5 − 6 − 8 − 5 − 9 − 4 − 8 − 3 − 5 Graph the parabola using its properties and the selected points. Direction: Opens Up Vertex: ( − 5 , − 9 ) Focus: ( − 5 , − 35 4 ) Axis of Symmetry: x = − 5 Directrix: y = − 37 4 x y − 7 − 5 − 6 − 8 − 5 − 9 − 4 − 8 − 3 − 5

Hoped I helped

Answer:

It's the one that's on the left of the y axis. I took the test.

Units for the perimeter are in kilometers

==============================================

Work Shown:

L = length = 6x-29

W = width = 5x-17

P = perimeter of rectangle

P = 2*(L + W)

P = 2*(6x-29 + 5x-17)

P = 2*(11x - 46)

P = 2*11x + 2*(-46)

P = 22x - 92

If we knew the value of x, then we could find the actual numeric value for the perimeter. However, we don't have that info, so we leave it as is.