Estimate how many 12-inch rulers will be the same length as the objectdoor, flag, wall of a small room

estimate:__rulers or __feet

Answers

Answer 1
Answer: for my estimate I think you need 5 rulers for the door. 7 rulers for the flag. and for the small room wall i:ll say 9 12-inch rulers. :)0

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5/6 of 18 pencils what is it

Answers

18/6=3*5=15. Your answer is 15. :)
We have a proportion: ?/18= 5/6

Cross multiply:
6*?= 5*18
⇒ ?= 5*18/6= 15

5/6 of 18 pencils is 15 pencils~

What is the rays of an angle that measures 1/2 turn

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Half a whole turn would be 180 if its in degrees

What is the length of a side of a cube with volume 729 cm3

Answers

solution:
v = l x w x h
all cube sides are equal:
v = length^3
given v = 729 cm3
length = cube root (729)
length = 9 cm

What is the formula for the volume of a cuboid?

Answers

length \ of \ the \ prism : \ l \n \n width \ of \ the \ prism : \ w \n \n heigth \ of \ the \ prism : \ h \n \n \n The \ volume \ is \ found \ using \ the \ formula: \n \n V= l\cdot w\cdot h


cuboid have 3 sides=a,b,c
volume=a*b*c

Find f(–2) for the function f(x) = 3x2 – 2x + 7. −13 −1 1 23

Answers

Answer:

The correct option is 4. The value of f(-2) is 23.

Step-by-step explanation:

The given function is

f(x)=3x^2-2x+7

We have to find the value of f(-2). It means we need to find the value of function f(x) at x=-2.

Substitute x=-2 in the given function to find the value of f(-2).

f(-2)=3(-2)^2-2(-2)+7

On simplification we get

f(-2)=3(4)-(-4)+7

f(-2)=12+4+7

f(-2)=23

The value of f(-2) is 23. Therefore the correct option is 4.

Answer:

f(-2) = 23

Step-by-step explanation:

f(x)=3x^2-2x+7\n\nf(-2)\to\text{put x = -2 to the equation of a function:}\n\nf(-2)=3(-2)^2-2(-2)+7=3(4)+4+7=12+4+7=23

only 6 of the 75 trees in the park are at leat 30 feet tall. what percent of the trees are over 30 feet?

Answers

Answer:

   8 %

Step-by-step explanation:

To find the percent of trees that are over 30 ft tall, take the number of trees that are over 30 ft tall over the number of tree

Percent = trees over 30 ft tall/ total number of trees

              = 6/75

              =.08

Change this to a percent by multiply by 100%

             .08 * 100%

                    8 %