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Arturiano [62]
3 years ago
7

Simplify (-8z+4) + (7z-7)

Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
5 0

Answer:

1. -1z-3

2. 4x+2

3. -y+11

4. 7a-22

Step-by-step explanation:

Not too sure about the last one

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For the sum we have the following properties:
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What is one characteristic of a cosine function
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I need help pleaaseeeee
Bond [772]

Answer:

x=3

Step-by-step explanation:

Because the shape is a rhombus that means that WZ and XY are parallel

This means we can use the co-interior angles rule to conclude that ∠WZY and ∠XYZ add up to 180°

This means that ∠WZY is 44°

Because the shape in a rhombus ZX and WY are perpendicular

This means that ∠ZRY is a right angle (90°)

Because ZX and WY are perpendicular that means that ∠ZYX is split in half which makes ∠ZYW 68°

Because the angles in a triangle add up to 180°

(10x-8)+68+90=180

(10x-8)+158-158=180-158

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10x/10=30/10

x=3

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2 years ago
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