The average mass of a grain of sand on a beach is about 0.000015. What is 0.000015 in scientific notation ?

Answer:

22x-3

Step-by-step explanation:

(2x-3)+[4x(3x+2)]

(2x-3)+12x+8x

2x-3+20x

12x^2

Answer: 37.2204mph

Step-by-step explanation: First, I converted 5 7/8 into 5.88 then I converted  6 1/3 into 6.33 and then multiplied the two then I got my answer.

Answer:

37 5/24 mph

Step-by-step explanation:

You need to multiply the numbers. First, convert them into fractions.

6 1/3 * 5 7/8 =

= (6 + 1/3) * (5 + 7/8)

= (6/1 + 1/3) * (5/1 + 7/8)

= (18/3 + 1/3) * (40/8 + 7/8)

= (19/3) * (47/8)

= 893/24

= 37 5/24

Answer:

300, 600, 300.

Step-by-step explanation:

324:  The tens digit is 2 so we do nothing to the hundreds digit so its 300.

558:  The tens digit is 5 so we round up the 5 . So it is 600.

In a similar way 256 becomes 300.

Answer:

300, 600, 300

Step-by-step explanation:

When you round a number up by the nearest 100. The digit in the tens place must be equal to or more than 5.

For example: 250 is rounded up to 300, but 240 can not be rounded up to 300.

When you have a number like 240, it can only be rounded down to 200

324 is rounded down to 300 because the tens place digit is less than 5

558 is rounded up to 600 because the tens place digit is higher than 5.

256 is rounded up to 300 because the tens place digit is 5.

Answer:

[1, 4]; 1 = m

Step-by-step explanation:

According to the Point-Slope Formula, y - y₁ = m(x - x₁), all the negative symbols give the OPPOSITE terms of what they really are, so in this case, the coordinates are [1, 4]. Now, the rate of change [slope] is 1 because an invisible coefficient is always assumed to be 1.

I am joyous to assist you anytime.

Answer:

The slope of the line is 1 and it passes through the point (1,4).

Step-by-step explanation:

If a line passes through a points [tex](x_1,y_1)[/tex] with slope m, then the point slope form of the line is

[tex]y-y_1=m(x-x_1)[/tex]            .... (1)

The given equation of line is

[tex]y-4=(x-1)[/tex]                .... (2)

We need to find the slope and the coordinates of a point on the given line.

On comparing (1) and (2) we get

[tex]m=1[/tex]

[tex]x_1=1[/tex]

[tex]y_1=4[/tex]

Therefore, the slope of the line is 1 and it passes through the point (1,4).

Answer:

1+2x=13

Step-by-step explanation:

the sum of= +

one=1

products of a number and 2= 2x

equals= =

thriteen=13

Put them all together:

1+2x=13

Answer:

Step-by-step explanation:

the  equation line passes through(-3,0)and (0,3)  is : y=ax+b

a is the slope   a = (3-0)/(0+3) = 1

so : y= x +b  calculate b  line passes through(-3,0)and (0,3)

x=0   y=3  : 3 = 0+b       so  b= 3

this equation is : y= x+3

Answer:

x>-13/6

Step-by-step explanation:

First you multiply inside the bracket by -5 on left side. You get

-15x-20<6-3x

Then you place the like terms on same sides for which you add 3x to both side to get rid of 3x from right side and you add 20 to both sides to get ride of 20 from left side

-15x+3x<20+6

then you solve for x

-12x<26

x<-26/12

x> -13/6 (the inequality sign changes due to multiplication by a negative number)

Answer:

sandwich hut is the best deal (what's the question????)

Step-by-step explanation:

because sandwich hut is buy one get one free, one sandwich costs $1.00 ($2 divided by 2 sandwiches)

Benny's costs $1.25 per sandwich ($5 divided by 4 sandwiches)

ABC costs $1.50 per sandwich ($6 divided by 4 sandwiches)

Answer:

Sandwich hut is the best deal.

Step-by-step explanation:

Find the unit rate of each stand, and you find which one is the best deal.

Answer:

y = 6

Step-by-step explanation:

Given

6y - 2 = 34 ( add 2 to both sides )

6y = 36 ( divide both sides by 6 )

y = 6

Answer:

y = 6

Step-by-step explanation:

6y - 2 = 34

+2         +2

6y = 36

---    -----

6      6

y = 6

Answer:2 to 4%

Step-by-step explanation:

your odds are 1/30 then your persentage would be 3 percent so your range of 20 to 30 students would be 2 to 4 percent chances

Final answer:

The estimated probability of a specific student's name being drawn from a class of 20-30 students is 4% or 1 in 25.

Explanation:

The probability of a specific student's name being drawn from a class with a number of students between 20 and 30 can be estimated by taking the inverse of the average of the maximum and minimum possible number of students. We calculate the average by adding 20 (the minimum) to 30 (the maximum) and dividing by 2, resulting in an average class size of 25 students.

To estimate the probability of drawing any one student's name, we take the inverse of 25, which is 1/25 or 0.04. Thus, the estimated probability is 4% that any particular student would be chosen in a random draw from a class size between 20 and 30 students.

Answer:

6 ≤ x < ∞

Step-by-step explanation:

The value of x cannot be less than 6 because that would make the term in the square root part negative. There is no real square root of a negative vale.

Answer: 580+29x = 490 + 35x

90 = 6x

15 = x

15 days is your answer

Step-by-step explanation:

Answer:

50 hours.

Step-by-step explanation:

First I found how how much the man was paid in a week for the base 40 hours which was 384. Then i subtracted that from the wage from the week so i could just have the overpay amount which was 144. I then multiplied 9.6 by 1.5 to get the hourly pay for overtime and god 14.4 dollars an hour. Lastly, i divided 144 by 14.4 and got 10 extra hours which got me to my answer of 50 hours because i added the 40 initial hours.

Final answer:

In this case, the man worked 10 hours of overtime.

Explanation:

The question pertains to calculating the regular and overtime pay of a man who earns $9.60 per hour for a standard 40-hour work week and time and a half for any hours worked beyond that. To find how many hours of overtime he worked when he earned $528.00 in a week, we need to use mathematical equations.

First, we calculate the man's regular weekly pay for 40 hours: 40 hours × $9.60/hour = $384.00. Since his total pay is $528.00, the overtime pay is $528.00 - $384.00 = $144.00.

Overtime pay is time and a half, so the overtime rate is $9.60/hour × 1.5 = $14.40/hour. We then divide the total overtime pay by the overtime rate: $144.00 / $14.40/hour = 10 hours of overtime work.

Thus, the man worked 10 hours overtime in addition to his regular 40 hours to make a total of $528.00.

Answer:

73+d

We don’t know what d equals so leave the variable, then just add the 73 he already had.

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Its c because 10/3.69=0.369 then you tomes that by twelve and itequals 4.428 round that up and its 4.43.

Final answer:

A real world situation that can be represented by the quotient -85/15 is paying off a credit card debt.

Explanation:

A real world situation that can be represented by the quotient -85/15 is the following:

Suppose you owe $85 on your credit card and you make monthly payments of $15. You want to know how many months it will take for you to pay off your debt completely.

To find the answer, you divide the amount you owe ($85) by the monthly payment ($15):

-85/15 = -5.67

This means it will take approximately 5.67 months to pay off your debt.

Answer: i can't speak english

Step-by-step explanation:

Hey!

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Solution:

I would assume that the iron intake is combined between breakfast and lunch. So 8.25mg is too meals worth of iron. So all we have to do is subtract.

15 - 8.25 = 6.75

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Answer:

6.75mg are still needed for his daily intake.

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Hope This Helped! Good Luck!

Answer:

see explanation

Step-by-step explanation:

Using the Section formula, then

[tex]x_{P}[/tex] = [tex]\frac{3(9)+4(-2)}{3+4}[/tex] = [tex]\frac{27-8}{7}[/tex] = [tex]\frac{19}{7}[/tex]

and

[tex]y_{P}[/tex] = [tex]\frac{3(11)+4(4)}{3+4}[/tex] = [tex]\frac{33+16}{7}[/tex] = [tex]\frac{49}{7}[/tex] = 7

Hence

P = ( [tex]\frac{19}{7}[/tex], 7 )

Step-by-step explanation:

EF is a segment so it's a line with the end points as E and F. Line RS bisects(cuts in half) line EF. Then where the two lines meet is where A is.

Hope this helped.

EF is a segment so it's a line with the end points as E and F. Line RS bisects(cuts in half) line EF. Then where the two lines meet is where A is.

To draw segment EF so that it bisects segment RS and mark their intersection point A, follow these steps:

Draw segment RS. This will be your starting line segment.

Find the midpoint of segment RS. To do this, measure the length of RS and mark the point that is exactly halfway between R and S. Let's call this point M.

Draw a straight line segment EF that passes through point M. This line segment will bisect segment RS.

Where segment EF intersects segment RS, mark the point of intersection as point A.

To know more about points:

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Answer: 9

The steps are in the picture

Answer:

8x² + 5x - 3

Step-by-step explanation:

Given

(3x² - 2) + (5x² + 5x - 1)

Since both parenthesis are distributed by 1 just remove them, that is

3x² - 2 + 5x² + 5x - 1 ← collect like terms

= (3x² + 5x²) + 5x + (- 2 - 1)

= 8x² + 5x - 3

Step-by-step explanation:

multiply the 1 1/2 by 2 to get 3.

find the closest number that is divisible by 3

3*7 is 21.

We now have to multiply 7 by 2 since we did that to our mixed number to get a whole number.

There is still a 1 1/2 left over. Simply add 1 to 14.

Answer:

15 servings

Step-by-step explanation:

Given,

Total number of cups = [tex]22\frac{1}{2}[/tex]

The number of cups required for each serving = [tex]1\frac{1}{2}[/tex]

Thus,

[tex]\text{The number of servings}=\frac{\text{Total cups}}{\text{cups required for each serving}}[/tex]

[tex]=\frac{22\frac{1}{2}}{1\frac{1}{2}}[/tex]

[tex]=\frac{\frac{45}{2}}{\frac{3}{2}}[/tex]

[tex]=\frac{45}{3}[/tex]

= 15

Answer:

4 is the highest common factor

Answer:

The highest common factor is 4

Step-by-step explanation:

Factors of 24 are { 1,2,3,4,6,8,12.......}

And factors of 76 are{ 1,2,4,19......)

from the two factors,

common factor ( C. F ) ={1,2,4}

and from the common factors, the highest is 4

Therefore 4 is the highest common factor for 24 and 76.

Answer:

The value of x is 2

Step-by-step explanation:

* Lets explain how to find a distance between 2 points

- If the endpoints of a segment are [tex](x_{1},y_{1})[/tex] and

 [tex](x_{2},y_{2})[/tex] is [tex]d=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}[/tex]

- Triangle ABC has a perimeter of 12 units

∵ The perimeter of any triangle is the sum of lengths of its sides

∴ P Δ ABC = AB + BC + AC

* Lets find the length of the three sides

∵ A = (x , 2) , B = (2 , -2) , C = (-1 , 2)

∵ [tex]AB=\sqrt{(2-x)^{2}+(-2-2)^{2}}[/tex]

∴ [tex]AB=\sqrt{(2-x)^{2}+(-4)^{2}}[/tex]

∴ [tex]AB=\sqrt{(2-x)^{2}+16}[/tex]

∵ [tex]BC=\sqrt{(-1-2)^{2}+(2--2)^{2}}[/tex]

∴ [tex]BC=\sqrt{(-3)^{2}+(4)^{2}}[/tex]

∴ [tex]BC=\sqrt{9+16}[/tex]

∴ [tex]BC=\sqrt{25}[/tex]

∴ BC = 5

∵ [tex]CA=\sqrt{(x--1)^{2}+(2-2)^{2}}[/tex]

∴ [tex]CA=\sqrt{(x+1)^{2}+(0)^{2}}[/tex]

∴ [tex]CA=\sqrt{(x+1)^{2}}[/tex]

- The √ is canceled by power 2

∴ CA = (x + 1)

∵ AB + BC + CA = 12

∴ [tex]\sqrt{(2-x)^{2}+16}[/tex] + 5 + (x + 1) = 12

- Add 5 and 1

∴ [tex]\sqrt{(2-x)^{2}+16}[/tex] + 6 + x = 12

- subtract 6 and x from both sides

∴ [tex]\sqrt{(2-x)^{2}+16}[/tex] = (6 - x)

- To cancel (√ ) square the two sides

∴ (2 - x)² + 16 = (6 - x)²

- Simplify the two sides

∴ [(2)(2) + (2)(2)(-x) + (-x)(-x)] + 16 = (6)(6) + (2)(6)(-x) + (-x)(-x)

∴ 4 - 4x + x² + 16 = 36 - 12x + x²

- Subtract x² from both sides

∴ 20 - 4x = 36 - 12x

- Add 12x to both sides and subtract 20 from both sides

∴ 12x - 4x = 36 - 20

∴ 8x = 16

- Divide both sides by 8

∴ x = 2

* The value of x is 2

Answer:

Are there any options for this question?

Step-by-step explanation:

I cant answer it without options.

Answer:

-14 *F

Step-by-step explanation:

-3 minus 11 is -14

hope this helps

Hey!

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[tex]\large\boxed{A) -14~degrees~fahrenheit}[/tex]

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Steps To Solve:

~Create an equation

-3 - 11

~Subtract

-14

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Hope This Helped! Good Luck!

The volume of a rectangular prism is found by multiplying its length, width, and height. Given the dimensions as 1 3/4 ft by 1 3/4 ft by 2 1/4 ft, when converted to improper fractions and multiplied together, we find that the volume of the suitcase is 220.5 cubic feet.

The subject of the student's question is focused on the mathematical concept of volume, specifically the volume of a rectangular prism. To find the volume of the suitcase, we need to multiply the length, width, and height of the suitcase. Given that the suitcase's dimensions are 1 3/4 ft by 1 3/4 ft by 2 1/4 ft, we first convert these mixed numbers into improper fractions (7/4 ft by 7/4 ft by 9/4 ft). Then, we multiply them together:

Volume = Length x Width x Height.
Volume = (7/4 ft) x (7/4 ft) x (9/4 ft) = 220.5 ft³.

The volume of the rectangular prism (suitcase) is 220.5 cubic feet.

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