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Taya2010 [7]
3 years ago
14

use a mental math strategy to find 4,290+3,602. explain how to check your answer using a different strategy.

Mathematics
1 answer:
Marianna [84]3 years ago
5 0
=7,892 , you could write out your numbers, then line them up to then add them.
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9a - ab + 5b<br><br>if a = 2 and b = 7​
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Find each measure <br><br> Please help me
Crazy boy [7]

Answer:

see explanation

Step-by-step explanation:

∠ YXW = ∠ ZXV ( vertically opposite angles ) , so

4a + 15 = 2a + 65 ( subtract 2a from both sides )

2a + 15 = 65 ( subtract 15 from both sides )

2a = 50 ( divide both sides by 2 )

a = 25

Then

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∠ ZXV = 2a + 65 = 2(25) + 65 = 50 + 65 = 115°

(8)

∠ YXW = ∠ ZXV = 115°

∠ ZXY and ∠ ZXV are adjacent angles and sum to 180° , that is

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∠ ZXY = 180° - 115° = 65°

(10)

∠ VXW = ∠ ZXY = 65° ( vertically opposite angles

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3 years ago
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Nadusha1986 [10]

Answer:

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Step-by-step explanation:

3 0
3 years ago
1. Graph the linear equation y - 1 = 2 (x - 2)
astraxan [27]
<span>y - 1 = 2 (x - 2) is the red graph.
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What is the value of n ?
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