2 years ago

What is the surface area of the given figure

Mathematics

1 answer:

Ad libitum [116K]2 years ago

5 0

Answer:

1,728cm square

Step-by-step explanation:

Surface area=sum of all faces of a polygon

Let's do the biggest ones: 32•20=640

32•16=512

Now the rest:

12•32=384

16•12=192 192÷2=96

Now add it all up: 640+512+384+96+96=1,728cm square

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Identify the value of y (3y+5)=-4-8y+9+77

noname [10]

Answer:

Y=7

Step-by-step explanation:

(3y+5)= -4 -8y +9 + 77

-5 -5

3y= -9 - 8y + 9 + 77

+9 -9

3y= -8y + 77

+8y +8y

11y = 77

11y/11 77/11

y = 7

1. subtract 5 from both sides

2. add -9 and +9 and you get 0

3. add 8y to both sides

4. divide both sides by 11

5. you get y=7

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3 years ago

what is a correct first step in solving the inequality –4(3 – 5x)≥ –6x 9? –12 – 20x ≤ –6x 9 –12 – 20x ≥ –6x 9 –12 20x ≤ –6x 9 –1

suter [353]

we have

$-4(3-5x) \geq -6x+9$

Step 1

Applying the distributive property in the left side ( Multiply the factors on the left side)

$-4(3-5x) \geq -6x+9\\- 4*3+4*5x\geq -6x+9\\-12+20x\geq -6x+9$

therefore

the answer is

$-12+20x\geq -6x+9$

8 0

2 years ago

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A marina is in the shape of a coordinate grid. Boat A is docked at (2.4, −3) and Boat B is docked at (−3.4, −3). The boats are _

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They are 5.8 units apart

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What's the value of x?

marshall27 [118]

The value of x is 2.5

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Solve the equation 14 = 9 - p

morpeh [17]

14 = 9 - p

Move 9 to the other side

Sign changes from +9 to -9

14-9= 9-9-p

14-9= -p

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Mutiply both sides by -1 to get + p

(5)(-1)= (-p)(-1)

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Answer: p= -5

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3 years ago