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2 years ago

descirbe how you approach a problem involving surface area. what do you do first? what are some strategies

Mathematics

1 answer:

Brut [27]2 years ago

7 0

Answer:

First, you need to find the area of two sides.

Step-by-step explanation:

Use LxW

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What is the area cause I am having a hard trouble

fomenos

The figure consists of a triangle and two rectangles.

-----------------------------
Top Triangle:
-----------------------------
Height = 22 - 10 - 7 = 5cm
Base = 20 - 5 - 5 - 10cm
Area of triangle = 1/2 x 5 x 10 = 25 cm²

-----------------------------
Middle Rectangle:
-----------------------------
Length = 10cm
Width = 7cm
Area = 10 x 7 = 70 cm²

-----------------------------
Bottom Rectangle:
-----------------------------
Length = 20 cm
Width = 10 cm
Area = 20 x 10 = 200 cm²

-----------------------------
Total Area:
-----------------------------
Area = 25 + 70 + 200 = 295 cm²

-----------------------------
Answer: Area = 295 cm²
-----------------------------

6 0

3 years ago

If f(x) = 2x−5, then what is the value of f(2) + f(5)

DochEvi [55]

First of all f(2)=2(2)-5=-1 and f(5)=2(5)-5=5
so
f(2)+f(3)=-1+5=4

7 0

3 years ago

Solve for n in the literal equation a(n-2)+5=bn

Helga [31]

Answer:

Answer is below

Step-by-step explanation:

a(n-2)+5=bn

Add -bn to both sides

an-2a+5+(-bn)=bn+(-bn)

an-bn-2a+5=0

add two a to both sides

an−bn−2a+5+(2a)=0+(2a)

an−bn+5=2a

Add -5 to both sides

an−bn+5+(-5)=2a+(-5)

an−bn=2a−5

Factor out our variable

n(a−b)=2a−5

Divide both sides by a-b

n(a-b)/a-b=2a-5/a-b

n=2a-5/a-b

Hope this helps

7 0

3 years ago

Put these numbers in order from smallest to largest: 10, -10, 0, 1, -5

Svet_ta [14]

1. -5,-10,0,1,5,10

2. -3,-5,0,1,5,10

3. -10

4. -7

5. -30

5 0

3 years ago

4 loads of stone weigh 2/3 ton. Find the weight of 1 load of stone.

Zina [86]

For computing this, follow this method: 4 loads of stone weigh 2/3 ton. 4loads---------------------2/3 1load---------------------? So it will be computed as 1x 2/3 /4 = 2/3x4= 1/3x2=1/6 the weight of 1 load of stone is 1/6 ton Hope this helps. Let me know if you need additional help!

4 0

3 years ago