MATHEMATICS
HIGH SCHOOL

Answer: The distance between points (3,2) and points (0,6) is 5

Hope his helped

Hope his helped

MIDDLE SCHOOL

Rachel wants to buy a shirt regularly priced at $32. It is on sale for 40% off. Rachel estimates that she will save 2/5 of $30 or $12. Will the actual amount be more or less than $12? Explain. I need this done today so help me now plz!!!

Okay, so first you know that the shirt was priced at $32.

It's on sale for 40%.

40% =

Now we can make a proportion, so set the values in a fraction.

We put 32 on the bottom since it's the total amount.

Divide 100 by 32, so 100÷32=3.2

Now divide the numerator (40) by 3.2, so 40÷3.2=12.5

That means the new cost of the shirt is $12.50 so the new amount will be more than 12 dollars.

Hope that helped :)

It's on sale for 40%.

40% =

Now we can make a proportion, so set the values in a fraction.

We put 32 on the bottom since it's the total amount.

Divide 100 by 32, so 100÷32=3.2

Now divide the numerator (40) by 3.2, so 40÷3.2=12.5

That means the new cost of the shirt is $12.50 so the new amount will be more than 12 dollars.

Hope that helped :)

MIDDLE SCHOOL

What is the first step when adding 1.45 x 108 and 3.9 x 107? 1. Convert both numbers back to standard notation.

2. Convert 1.45 x 108 to 14.5 x 107.

3. Add the numbers in front and multiply the exponents.

4. These problems cannot be added since the exponents do not match.

We need to add 1.45 x 10^8 and 3.9 x 10^7.

Please see..

We have given numbers in scientific form.

We can't add the decimal numbers in front, because those numbers are being multiplied with 10 exponents and the exponents of 10's are not same.

So, we always convert the exponents of 10 as same.

1.45 x 10^8 could be converted to 14.5 x 10^7 to get exponent of 10 as 7 as other number 3.9 x 10^7 also has exponent of 10 as 7.

After this step we can just add the 14.5 and 3.9 and put × 10^7 with it.

So, first correct step is:

2. Convert 1.45 x 108 to 14.5 x 107.
MIDDLE SCHOOL

Okay i get it, i know how to do this but this one doesnt make sense What is 1.11×10−71.11×10−7 written in standard form?

0.1110000

0.00000000111

0.000000001011

0.000000111

1.11*10^-7 means move decimal place 7 places to the left

0.000000111 is answer

the last one

0.000000111 is answer

the last one

Answer:

ffffffffff

Step-by-step explanation:

MIDDLE SCHOOL

A store has clearance items that have been marked down by 45%. They are having a sale, advertising an additional 55% off clearance items. What percent of the original price do you end up paying?

The percent of the original price you end up paying is 5%

Answer:

24.75

Step-by-step explanation:

HIGH SCHOOL

Alan's go kart travels 1750 feet per minute, and Barry's go kart travels 21 miles per hour . whose go kart travels faster ? round your answer to the nearest tenth .

Alan's go kart is faster

MIDDLE SCHOOL

Which is an equation for the line with a slope of 1/3, and passes through

the point (–2, 1)?

Answer:

y = (1/3)x +5/3

Step-by-step explanation:

The general equation of a line is

y = mx+b

where m is the slope and b the y-intercept

Since the slope is 1/3 we have

y = (1/3)x +b

since the line passes through (x,y) = (-2,1) this point satisfies the equation

1 = (1/3)(-2) + b ===> b = 1+2/3 ===> b = 5/3

and the equation of the line is

y = (1/3)x +5/3

MIDDLE SCHOOL

What is 2/3 Minus 5/9

Answer:

1/9

Step-by-step explanation:

2/3-5/9=6/9-5/9=1/9

1/9 or 0.1 continuing.

Hope this helps, if not, comment below please!!!

HIGH SCHOOL

Whats 23432425737 times 47563677!

1.114532329081e18 is the answer

Convert each of the numbers to scientific notation:

23432425737 * 47563677

(2.3432425737 * 10^10)(4.7563677 * 10^7)

Now, multiply. Your answer should have 8 significant digits:

(2.3432425737 * 10^10)(4.7563677 * 10^7) = 11.145323 * 10^17

23432425737 * 47563677

(2.3432425737 * 10^10)(4.7563677 * 10^7)

Now, multiply. Your answer should have 8 significant digits:

(2.3432425737 * 10^10)(4.7563677 * 10^7) = 11.145323 * 10^17

MIDDLE SCHOOL

Four a plus 2 c plus c =

Step-by-step explanation:

4 a + 3 c

hope this helps let me know if it helped

Answer:

Step-by-step explanation:

4a+3c