Help again you know me

Answer:

276 miles

Step-by-step explanation:

Mr.Smith can drive 46 miles in one hour. So, 46 times 6 equals 276. So in 6 hours Mr.Smith can drive 276 miles

Answer:

2.5/115, 6/n

its set up like this because 2.5 hours over 115 miles is proportionate to 6 hours over n miles

Answer:

y = -9x +3

Step-by-step explanation:

Slope = -9

y intercept = 3

We can use the slope intercept form

y = mx+b  where m is the slope and b is the y intercept

y = -9x +3

Answer:

Step-by-step explanation:

given:

slope = -9

y intercept = 3

use the slope intercept form : y = mx + b

m = slope

b = y intercept

just plugin the values into the formula:

y = -9x + 3

Answer:

3a+16

Step-by-step explanation:

To find perimeter, you add up the lengths of all of the sides.

a+3

a+5

a+8

You would add all of the sides together to get

a+3+a+5+a+8

Let's add the numbers first

3+5+8=16

Now the letters

there are (3) As

3a

The answer is 3a+16

Hope this helps :-)

Your answer should be 9 inches long

Answer:

61.90

Step-by-step explanation:

Answer:

61.9

Step-by-step explanation:

The 8-count pack of AA batteries has a lower unit prices of $0.78 per battery.

Option B is correct.

Division in mathematics is the process of breaking a number up into equal parts, and finding out how many equal parts can be made. For example, dividing 15 by 3 means splitting 15 into 3 equal groups of 5.

According to the question

Unit price of 8 AA batteries

= 6.24 ÷ 8

= 0.78

Unit price of 20 AA batteries

= 15.8 ÷ 20

= 0.79

Since, 0.78 < 0.79

Therefore, the unit price of 8 AA batteries is low.

Option B is correct.

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Answer: A: 180= 90+4x+x

B: x=18

Step-by-step explanation:

1. Every triangle has a length of 180

2. So all the measurements combined would equal 180

3. So write the equation 180=90+4x+x

4. Let‘s simplfy, 180=90+5x

5. Subtract 90 from each side, 90=5x

6. Divide each side by 5, 18=x.

7. Double check our work! 90+(4*15)+18=180

Answer:

4.063 * 10^4 or 4.063 times ten the fourth power

Step-by-step explanation:

since 40,630/10^4 = 4.063, and 4.063 * 10^4 = 4.063 * 10000 = 40630

Answer: Your answer is 0 (F.O.I.L) first. outer. inner. last. Or you could use what my teacher calls the magic box

Step-by-step explanation:

So for the boxes you multiply for example the top left box you multiply the 9 above it and the 9 to the left or like the top right box you multiply the -9 above it and the 9 on the outside of the box to the left

Answer:

The gold vein is  96 miles away from the farthest gold dust strike.

Step-by-step explanation:

Distance Between two Points in the Plane

Given two points A(x,y) and B(w,z), the distance between them is:

[tex]d=\sqrt{(z-y)^2+(w-x)^2}[/tex]

The prospector positioned the gold vein at  (-2,9) and the farthest gold dust strike at (94,9). We are required to calculate the distance between these two points. Use the formula:

[tex]d=\sqrt{(9-9)^2+(94-(-2))^2}[/tex]

[tex]d=\sqrt{0^2+96^2}[/tex]

[tex]d=\sqrt{96^2}=96[/tex]

The distance is 96 units, but we know each unit on the graph represents 1 mile, thus the gold vein is 96 miles away from the farthest gold dust strike.

Answer:

he gold vein is  96 miles away from the farthest gold dust strike.

Step-by-step explanation:

Distance Between two Points in the Plane

Given two points A(x,y) and B(w,z), the distance between them is:

The prospector positioned the gold vein at  (-2,9) and the farthest gold dust strike at (94,9). We are required to calculate the distance between these two points. Use the formula:

The distance is 96 units, but we know each unit on the graph represents 1 mile, thus the gold vein is 96 miles away from the farthest gold dust strike.

Step-by-step explanation:

Answer: there should be 3 hope this helps

Step-by-step explanation:

Answer:

are you a real girl that's question

Answer:

20

Step-by-step explanation:

Answer:

1-b 2-c 3-a 4-d 5-d 6-a

Step-by-step explanation:

Answer:

A.

Step-by-step explanation:

Because 5*10^9= 5 Billion, and that's the closest answer.

Answer:

Rotation of point through 90° about the origin in clockwise direction when point M (h, k) is rotated about the origin O through 90° in clockwise direction. The new position of point M (h, k) will become M' (k, -h).

Answer:

is the equation of the line:

y=-3x

Answer:

x=4

Step-by-step explanation:

I'm good at math.

Answer:

-6 is going to the left while positive 2 is going the opposite way

Answer:

  see the attachment for a table

Step-by-step explanation:

You asked "how do you do this one?" My answer to that is, "use a graphing calculator or spreadsheet."

The given formula can be evaluated repeatedly for different values of t quite easily by a graphing calculator or spreadsheet. Enter the formula and have it be applied to the given t-values. A spreadsheet provide cell formatting so that rounding can be to whatever precision you desire.

The values in the table attached will need to be rounded to one decimal place "by hand."

__

Note that we have assumed that H(t) and y(t) are the same function.

Answer:

the answer is 1.25

Step-by-step explanation:

you need to divide the y axis by the x axis for example

5 divided by 4

Step-by-step explanation:

D

Answer: The Answer is- (4+5) divided by 3

Step-by-step explanation:

Given statement solution is :- The calendar is from the second half of the year, there are two possible months circled in red: August or January. This is because if the calendar is from the second half of the year, the circled date can only be from July to December. Therefore, the options are August (the next month after July) or January (the first month of the following year).

To calculate the age of each person as of the circled date, we need to subtract their birthdates from the circled date and consider the years, months, and days.

i) Tim would be 10 years, 11 months (since the months calculation was negative, we subtracted 1 from the years calculation), and 7 days old.

ii) Sharon would be 17 years, 2 months, and 2 days old.

iv) Caroline would be 48 years, 1 month (since the months calculation was negative, we subtracted 1 from the years calculation), and 23 days old.

v) Jack would be 51 years, 4 months (since the months calculation was negative, we subtracted 1 from the years calculation), and 14 days old.

vi) Stefan would be 57 years, 3 months (since the months calculation was negative, we subtracted 1 from the years calculation), and 26 days old.

(a) To determine the possible months this calendar could be from, we need to look for clues within the given information. Unfortunately, no specific information about the calendar itself is provided. Therefore, we can only make assumptions based on the dates mentioned.

(b) If the calendar is from the second half of the year, there are two possible months circled in red: August or January. This is because if the calendar is from the second half of the year, the circled date can only be from July to December. Therefore, the options are August (the next month after July) or January (the first month of the following year).

(c) To calculate the age of each person as of the circled date, we need to subtract their birthdates from the circled date and consider the years, months, and days.

(i) Tim - born 11th July 2013

Let's assume the circled date is 4th June 2023.

To calculate Tim's age:

Years: 2023 (circled year) - 2013 (birth year) = 10 years

Months: 6 (circled month) - 7 (birth month) = -1 month (Since the circled month is earlier than the birth month, we subtract 1 from the year calculation)

Days: 4 (circled day) - 11 (birth day) = -7 days (Similarly, since the circled day is earlier than the birth day, we subtract 1 from the month calculation)

Therefore, Tim would be 10 years, 11 months (since the months calculation was negative, we subtracted 1 from the years calculation), and 7 days old.

(ii) Sharon - born 2nd April 2006

Using the same circled date of 4th June 2023:

Years: 2023 - 2006 = 17 years

Months: 6 - 4 = 2 months

Days: 4 - 2 = 2 days

Sharon would be 17 years, 2 months, and 2 days old.

(iv) Caroline - born 27th July 1975

Assuming the circled date is still 4th June 2023:

Years: 2023 - 1975 = 48 years

Months: 6 - 7 = -1 month

Days: 4 - 27 = -23 days

Caroline would be 48 years, 1 month (since the months calculation was negative, we subtracted 1 from the years calculation), and 23 days old.

(v) Jack - 18th October 1972

Using the same circled date:

Years: 2023 - 1972 = 51 years

Months: 6 - 10 = -4 months

Days: 4 - 18 = -14 days

Jack would be 51 years, 4 months (since the months calculation was negative, we subtracted 1 from the years calculation), and 14 days old.

(vi) Stefan - 30th September 1966

Assuming the circled date is still 4th June 2023:

Years: 2023 - 1966 = 57 years

Months: 6 - 9 = -3 months

Days: 4 - 30 = -26 days

Stefan would be 57 years, 3 months (since the months calculation was negative, we subtracted 1 from the years calculation), and 26 days old.

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Given:

The number of bacteria in a culture is increasing according to the law of exponential growth.

After 2 hours, there are 50 bacteria, and after 5 hours, there are 400 bacteria.

To find:

The number of bacteria after 7 hours.

Solution:

Let y be the number of bacteria after x hours.

The general exponential growth model is

[tex]y=ab^x[/tex]

where, a is initial value and b is growth factor.

After 2 hours, there are 50 bacteria. So, the point is (2,50). Put x=2 and y=50.

[tex]50=ab^2[/tex]         ...(ii)

After 5 hours, there are 400 bacteria. So, the point is (5,400). Put x=5 and y=400 in general exponential growth model.

[tex]400=ab^5[/tex]       ...(iii)

Divide equation (iii) by (ii).

[tex]\dfrac{400}{50}=\dfrac{ab^5}{ab^2}[/tex]  

[tex]8=b^3[/tex]

Taking cube root on both sides, we get

[tex]b=2[/tex]

Put b=2 in (ii).

[tex]50=a(2)^2[/tex]  

[tex]50=4a[/tex]

[tex]\dfrac{50}{4}=a[/tex]

[tex]a=12.5[/tex]

Put a=12.5 and b=2 in (i).

[tex]y=12.5(2)^x[/tex]

This is the equation which represents number of bacteria after x hours.

Put x=7 in the above equation.

[tex]y=12.5(2)^7[/tex]

[tex]y=12.5(128)[/tex]

[tex]y=1600[/tex]

Therefore, the number of bacteria after 7 hours is 1600.

Answer:

a = (D-b) / 2

Step-by-step explanation:

Goal : move "a" to the left side and everything else to the right side

D=2a+b   (swap left and right sides)

2a + b = D    (subtract b from both sides)

2a = D - b   (divide both sides by 2)

a = (D-b) / 2   (answer)

The solution of the formula expressed 'a' in terms of the variable D and b is given by a = (D - b) / 2.

To solve the formula D = 2a + b for 'a', we need to isolate 'a' on one side of the equation.

Subtract 'b' from both sides of the equation to move it to the right-hand side.

D - b = 2a

To solve for 'a', we need to get rid of the coefficient of 'a', which is 2. Divide both sides of the equation by 2.

(D - b) / 2 = a

The equation (D - b) / 2 = a is the solution for 'a' in general.

formula D = 2a + b, 'D' is expressed in terms of 'a' and 'b'.

To solve for 'a', we want to find an expression that represents 'a' on its own without any other variables on the right-hand side of the equation.

Perform inverse operations to isolate 'a'.

first, move the 'b' term to the right side by subtracting 'b' from both sides. This step ensures that all the terms involving 'a' are on one side of the equation.

Next, divide both sides by the coefficient of 'a', which is 2, to cancel out the multiplication of 'a'.

This step leaves 'a' alone on the left side, thus giving us the solution for 'a'.

Therefore, the required formula is (D - b) / 2 = a, expresses 'a' in terms of 'D' and 'b'.

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