3 years ago

Use the substitution method to solve the system of equations choose the correct ordered pair

Mathematics

2 answers:

Sergeu [11.5K]3 years ago

5 0

D hope I could help

Marrrta [24]3 years ago

5 0

Answer:

(-5,8)

Step-by-step explanation:

i checked on apex and it gave me that

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In a rhombus whose side measures 20 and the smaller angle is 38°. Find the length of the larger diagonal, to the nearest tenth.

Lemur [1.5K]

A rhombus diagonals form right angles. The diagonals also cut in half the angles

use cosine: cos38 = $\frac{a}{20\\\\}$

a = 20cos38

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3 years ago

2x -1 + x +1 = 180 <br> PLEASE SOLVE CORRECTLY

KiRa [710]

Answer:

x = 60

Step-by-step explanation:

Combine like terms on the left side of the equation: 2x + x = 3x; -1 + 1 = 0 so the total for the left side is just 3x. Now compare it to the full equation that you have left now, 3x = 180 now do 180/3 = 60

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3 years ago

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2 years ago

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Anarel [89]

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3 years ago

-4x + 7.3x + 19.2x - 8.23 <br> and it’s not 22.5x - 8.38 by the way, I tried it .

Gekata [30.6K]

Answer:

You put 8.38 instead of 8.23

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2 years ago

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