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Vadim26 [7]
3 years ago
7

5(x - 3) = 7x 2 Step 1 ⇒ 10(x - 3) = 7x Step 2 ⇒ 10x - 30 = 7x Step 3 ⇒ 3x - 30 = 0 Step 4 ⇒ 3x = 30 Step 5 ⇒ x = 10 Identify th

e property of equality which yields Step 4.
Mathematics
2 answers:
crimeas [40]3 years ago
7 0
The property is addition property of equality. What you add to one side you add to the other.
Yanka [14]3 years ago
5 0
<span>A)<span>Division Property. dude this is the answer'

</span></span>
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Elli left home8:30 and returned at 1:25how long was she away from home?
Komok [63]

Answer:

3 hours and 45 minutes assuming its from am to pm

Step-by-step explanation:

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Rita ran 5 miles in 48 minutes what was her time per mile
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9.60 minutes per mile
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Line segment KI is tangent to crcle J at point K What is the length of the radius, ? O 8 unts O 10 units O 12 units O 16 units 2
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3 years ago
Help! I don't get this, and if it is easy to you, this isn't my paper, it is my friends! &lt;3
mihalych1998 [28]

(1 + i)/(1 + 2i)

To simplify this, we need to multiply both sides by the conjugate.

(1 + i)(1 - 2i)

1 - 2i - i - 3i^2

Combine like terms.

3i^2 - 3i + 1

i^2 = -1

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(1 + 2i)(1 - 2i)

1 - 2i + 2i - 4i^2

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1 + 4

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<h3><u>The simplified expression is ((-3i)/5) + ((-2)/5)</u></h3>
7 0
3 years ago
9.
siniylev [52]

Answer:

Slant height (s)= 12.1 cm

Step-by-step explanation:

Given: Base= 4.5 cm.

           Surface area of right square pyramid= 129.5 cm.

First, calculating slant height (s) of right square pyramid.

Surface area of square pyramid= (a^{2} +2\times a\times s)

a= side of square base.

s= slant height

∴ 129.5= (4.5^{2} + 2\times 4.5\times s)

⇒ 129.5= (20.25+2\times 4.5\times s)

⇒ 129.5= (20.25+9\times s)

Now, opening the parenthesis and subtracting both side by 20.25.

⇒ 109.25=9\times s

cross multiplying both side

∴ Slant height (s)= 12.1

5 0
3 years ago
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