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White raven [17]
3 years ago
13

Easy way for a 2nd graders to learn marh

Mathematics
2 answers:
iris [78.8K]3 years ago
5 0
Send them to school and the teaches will teach him/her
zubka84 [21]3 years ago
3 0
Make them count jelly beans.
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A solid piece of wood shaped as a cylinder with an 8-centimeter diameter is cut as shown. What is the surface area of the figure
aliina [53]
The surface area of the figure is 96 + 64π ⇒ 1st answer
Step-by-step explanation:
* Lats revise how to find the surface area of the cylinder
- The surface area = lateral area + 2 × area of one base
- The lateral area = perimeter of the base × its height
* Lets solve the problem
- The figure is have cylinder
- Its diameter = 8 cm
∴ Its radius = 8 ÷ 2 = 4 cm
- Its height = 12 cm
∵ The perimeter of the semi-circle = πr
∴ The perimeter of the base = 4π cm
∵ The area of semi-circle = 1/2 πr²
∴ The area of the base = 1/2 × π × 4² = 8π cm²
* Now lets find the surface area of the half-cylinder
- SA = lateral area + 2 × area of one base + the rectangular face
∵ LA = perimeter of base × its height
∴ LA = 4π × 12 = 48π cm²
∵ The dimensions of the rectangular face are the diameter and the
height of the cylinder
∴ The area of the rectangular face = 8 × 12 = 96 cm²
∵ The area of the two bases = 2 × 8π = 16π cm²
∴ SA = 48π + 16π + 96 = 64π + 96 cm²
* The surface area of the figure is 96 + 64π
6 0
3 years ago
Using the following image, solve for FG.
Elza [17]

Step-by-step explanation:

x+x-7=11

2x+7=11

2x=18

2x/2=18/2 = x=9

9-7=2

So, FG=2

4 0
3 years ago
Read 2 more answers
Find the average of 27 and 45
Romashka [77]
Average is the total of the numbers divided by the amount of numbers.
\frac{27+45}{2}
\frac{72}{2}
36 is the answer.
3 0
3 years ago
Read 2 more answers
Michael is walking from home to work. The function graphed represents the remaining distance to his work, in kilometers, x hours
Karolina [17]
x intercept- the number of remaining hours it takes to walk to work.

y intercept- the remaining distance from home to work. 


Just took the quiz. Hope this helps you guys baiii <33
3 0
3 years ago
Read 2 more answers
Find The Slope Of The Line For Number 6. I NEED THIS DONE ASAP! I WILL GIVE BRAINILEST WHOEVER GETS THIS RIGHT!
Dmitrij [34]

Answer:

m = 0

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

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

<u>Algebra I</u>

  • Slope Formula: m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Find points from graph.</em>

Point (-2, 5)

Point (4, 5)

<u>Step 2: Find slope </u><em><u>m</u></em>

  1. Substitute:                    m=\frac{5-5}{4+2}
  2. Subtract/Add:               m=\frac{0}{6}
  3. Divide:                          m=0
3 0
2 years ago
Read 2 more answers
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