A circle has a radius 12 milimeters. What is its area? Use 3.14 for pie

Answers

Answer 1
Answer:

Step-by-step explanation:

Area of a circle = pi * r^2

                        = 3.14 ( 12)^2 = 452.16 mm^2


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Explain this algebraic expression in your own words: 3x - y

Answers

Answer:

You have a number multiplied by the variable x, so three times some value x. then you have (-y) taking the value of 3x and subtracting the value of (y) from it. The expression depends on the values of x and y you plug into it.

Step-by-step explanation:

for example, 3(4) - (6) = 12-6 = 6

Sketch the rectangles and your tiling. Write the Dimensions and the units you counted in the blanks. Then, use multiplication to confirm the area. Show your work.

Answers

Answer:

The area of the rectangle is 12units^(2)

Step-by-step explanation:

The sketch is in the attachement.

long: 4-units

wide: 3-units

The rectangle has 4 units long and 3 units wide

area of rectangle is the product of long and wide side.

Area=l*w\nArea=4units*3units\nArea=12units^(2)

Answer:

Step-by-step explanation:

Below are the dimensions of the rectangle and the crossed portions are unwanted regions.

A.

Rectangle A:

Length, l = 3 units

Width, b = 2 units

Area of a rectangle = length × width

= 3 × 2

= 6 units^2

B.

Rectangle B:

Length, l = 3 units

Width, b = 2 + 1/2 units

= 5/2 units

Area of a rectangle = length × width

= 3 × 5/2

= 15/2 units^2

C.

Rectangle C:

Length, l = 5 units

Width, b = 1 + 1/2 units

= 3/2 units

Area of a rectangle = length × width

= 5 × 3/2

= 15/2 units^2

D.

Rectangle D:

Length, l = 2 units

Width, b = 1 + 3/4 units

= 7/4 units

Area of a rectangle = length × width

= 2 × 7/4

= 7/2 units^2

E.

Rectangle E:

Length, l = 5 units

Width, b = 3/4 units

= 3/4units

Area of a rectangle = length × width

= 5 × 3/4

= 15/4 units^2

Tom's Tent Rental charges a flat rate of $100 per day plus $10 for each hour the tent is used. If the number of hours is represented by "h," which algebraic expression represents the overall rate for the day using "h"?100 + 10h

10h

100 + h

90h

Answers

100 + 10h

The 100 represents the $100 and the 10h represents the $10 times the hours 

Final answer:

The algebraic expression that represents the overall rate for a day's tent rental from Tom's Tent Rental, considering both the flat rate and the hourly charges, is '100 + 10h'.

Explanation:

To solve the problem, we need to express the situation in algebraic form. In this case, Tom's Tent Rental charges a flat rate of $100 per day, so we have '100'. Additionally, it costs $10 for each hour the tent is used. If we denote the number of hours as 'h', then the charge for the hours used would be '10h'.

Therefore, the total cost or the algebraic expression representing the overall rate for the day, considering both the flat rate and the hourly charges would be '100 + 10h'.

Learn more about Algebraic Expression here:

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Gavin buys 89 blue pansies and 86 yellow pansies he will plant the flowers in 5 rows with an equal number of plants in each row how many plants will be in each row

Answers

Answer

Find out the  how many plants will be in each row.

To prove

Let us assume that the number of plants in each row be x.

As given

Gavin buys 89 blue pansies and 86 yellow pansies

he will plant the flowers in 5 rows with an equal number of plants in each row.

Total number of  flowers Gavin buys = 89 + 86

                                                              = 175


The number of plants in each row

x = (175)/(5)

x = 35

Therefore the number of plants in each row be 35 .


The Answer is 35 because if you divide 89 by 5 it gives you 17.8 and 86 by 5 gives you 17.2. When you round 17.2 it is still 17 and 17.8 is 18. And 17+18=35

35*5=175

89+86=175

18. Given that g(x) = -(x^2)/4, what is the value of g(+8) ?F. -16
G. 4
H. -1
J. 4
K. 16

Answers

Answer:

F. -16

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Algebra I

  • Functions
  • Function Notation

Step-by-step explanation:

Step 1: Define

Identify

\displaystyle g(x) = -(x^2)/(4)

Step 2: Evaluate

  1. Substitute in x [Function g(x)]:                                                                         \displaystyle g(-8) = -((-8)^2)/(4)
  2. Exponents:                                                                                                        \displaystyle g(-8) = -(64)/(4)
  3. Divide:                                                                                                               \displaystyle g(-8) = -16

On monday morning, there were 30 tickets available for a concert. if 1/3 tickets were sold on monday and 1/5 of those left were sold on tuesday, how many tickets were still available after tuesday's tickets sales? Help please

Answers

1/3 of 30 = 10
30-10= 20
1/5 of 20 = 4
20-4= 16

there were 16 tickets remaining!
I dont have a calculator but i can help you work through it