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350 /  .70   =   500

Amplitude  =   [ Greatest  y value on graph  -  Least  y value  on graph  ]  / 2  =

[Range]  / 2    =

[6 - - 2] / 2   =

8 / 2   =

4

83  is  her favorite  number

Reversing the digits we have  38

And

83 - 38   =   45

Sophie's favorite number is a two-digit number. If she reverses the digits, the result is 45 less than her favorite number. The sum of the digits in her favorite number is 11. What is Sophie's favorite number?

its 83

the sum of the digits in 72 is 9, not 11

180-162=18 degrees-(measure of each exterior angle).

360 / y =number of sides the polygon has and 360 / 18 = 20 sides. The polygon has twenty(20) sides.

There are cars, trucks, and motorcycles in our company parking lot. The ratio of cars to trucks to motorcycles is 4:3:2 If there are 42 cars and trucks total, how many motorcycles are there?

Your daughter's age now =D

Your age now                     =A

A = 9D..............................(1)

Next Year:

A  + 1 =7[D + 1]................(2), solve for A, D

D = 3 year now 

A = 27 years now.

3 + 1 = 4 years -daughter's age next year.

4 x 7 = 28 years - your age next year.

i got 9.2 but got 2/4 plz help

https://web2.0calc.com/questions/plz-help-asap_29#r1

The plot is   120 cm tall      120 cm / 30cm/paver =  4 pavers tall

the plot is     630 cm long    630 cm/30cm/paver =  21 pavers long

total pavers =  4  x 21 = 84  

     total cost   2.50  x 84

You MULTIPLIED by 4......you need to DIVIDE by 4  

4x = pi/6    divide by 4

x = pi/24

4x = 5pi/6    divide by 4

x = 5pi/24                                           

10 of the 30 surveyed say 'theme park'    so you would expect 1/3 of total would feel that way    1/3 * 225 =.......

Anything that selects a certain group or a smaller group would make it less accurate

    so   grade 7    or cafeteria would likely make it less accurate  BUT it is hard to say given the info in the Q.....if the 225 students are mostly from level 7  or is all of the students are in the cafeteria, this would not be true.    But the other two choices> asking more peole or more randomization would likely make it more accurate.

a number squared has to equal 144

12 x 12

so     ( x+12)²     results in  x^2 + 24x + 144         if  s can be negative    (x-12)²   results in x^2 - 24x + 144 

Thanks so much!!

I know i have asked many questions but is it correct?

2.1 for pi/6 and 10.5 for 5pi/6

I'm not sure that's correct, as you could also have for example 10, 2, and 3 in a column or 7, 2, and 12.

Yes you divide both sides of the equation by 4      so     pi/6  would be divided by 4 also   

https://web2.0calc.com/questions/plz-help-asap-plz-plzzzzz