Isnt the first one zero becuse the number between -1 and 1 coupd only be zero
Answer:
x ≈ 49.5°
Step-by-step explanation:
We use cos∅ to solve this:
cosx = 13/20
x = 
x = 49.4584
You take $18.80 divide by 2 =$9.40 then $18.80+$9.40=$28.20
$28.20 x's 5.5=$$155.10
$18.80 x's 40=$752.00
<span>then add 752.00+155.10=$907.10</span>
The number is -9
Step-by-step explanation:
Let x be the number then according to given statement

Subtracting 10 from both sides

Subtracting x from both sides

Dividing both sides by 3

<u>Verification:</u>

The number is -9
Keywords: Linear equation, variables
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