Answer:
50°
Step-by-step explanation:
(3x + 5) + (3x - 5) = 90
6x = 90
x = 15
∠P = 50°
ANSWER
x=3, y=-4
EXPLANATION
The given system is :
First equation:
Second equation:
Let us multiply the first equation by 7 to get,
Third equation;
Let us multiply the second equation too by 10 to get,
Fourth equation:
Subtract the fourth equation from the third equation:
Divide both sides by 59.
Put y=-4 into the second equation and solve for x.
The solution is x=3, y=-4
Answer:
Rational
Step-by-step explanation:
A rational number is a number with two or fewer integers.
-51/5 = -5.2
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Note that (a+b)^2 = a^2 + 2ab + b^2. This is always true.
Let's re-write the given "<span>ab = 8 and a^2+b^2=16" as
a^2 + 2ab + b^2 = 16 + 2ab, or, equivalently, as
(a+b)^2 = 16 + 2(8) = 32.
This is the answer we wanted.
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