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Vlad1618 [11]
3 years ago
9

If 4x-3=7 then 4x=10

Mathematics
2 answers:
Darya [45]3 years ago
6 0
It could be
addative inverse property because

3+-3=0 so

4x-3=7,
add 3 to both sides
4x+3-4=7+3
4x+0=10
4x=10

I would guess addative inverse
poizon [28]3 years ago
5 0
Ah ok The property is 
"The Addition Property of Equality"
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I don’t understand the problem or question
skad [1K]

Answer:

Part A

a. Could be a parallelogram but cannot be a rectangle

Part B

c. 100°

Step-by-step explanation:

Part A

The polygon constructed by Andrew = Four sided polygon having no right angles

From the given four sided polygon (quadrilateral) options, the options which can have no right angles are the parallelogram, and rhombus

The rectangle, and square both have 4 right angles

Therefore, the polygon can be either a parallelogram or a rhombus, but cannot be either a rectangle or square

The correct option is therefore, 'His polygon could be a parallelogram but cannot be a rectangle'

Part B

The given parameters of the rhombus EFGH are;

Angle E = 3·x + 5, angle H = 4·x

The characteristics of a rhombus are;

The sum of the interior angles of a rhombus = 360°

The opposite angles of a rhombus are equal

The sum of the adjacent angles = 180° (The adjacent angles are supplementary)

Therefore, in the rhombus EFGH, we have;

Angle E, and angle H are supplementary angles

∴ Angle E + angle H = 180°

Substituting the values of angle E and angle H gives;

3·x + 5 + 4·x = 180°

7·x = 180° - 5 = 175°

x = 175°/7 = 25°

Angle H = 4·x

∴ Angle H = 4 × 25° = 100°

Angle H = 100°

Angle F = angle H = 100°

Therefore, angle F = 100°

4 0
3 years ago
Isabella’s mom takes her and two other friends mini-golfing. The table below shows how much different things cost at the mini-go
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2 years ago
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Answer:

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Step-by-step explanation:

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Allushta [10]
50 cm = 1/2 m
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It will take him six days.


3 0
3 years ago
Branliest and Extra Points will be given!!! No explanation needed just the answer plz.
Hitman42 [59]

Right triangle, Pythagorean Theorem:

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c² = 8² + 9²  = 64 + 81 = 145

c = √145 inches

That's the exact answer but they want us to ruin it with an approximation.

c ≈ 12.041594578792296 inches

Answer: 12

3 0
3 years ago
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