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sattari [20]
3 years ago
14

The sum of two numbers is 22. The difference is 6. What are the two numbers?

Mathematics
2 answers:
algol [13]3 years ago
7 0

Answer:

Numbers are 14 and 8

Step-by-step explanation:

Let the 2 numbers be x and y.

Write 2 equations:

x + y = 22

x - y = 6

Solve by substitution:

x - y = 6

x = y + 6

Plug into the other equation:

(y + 6) + y = 22

2y + 6 = 22

2y = 16

y = 8

Plug into either equation:

x + 8 = 22

x = 14

Numbers are 14 and 8

harkovskaia [24]3 years ago
4 0

Answer:

14 and 8

Step-by-step explanation:

x and 22-x  (x+22-x=22)

22-x-x=6

22-2x=6

22-6=2x

16=2x

x=8

22-8=14

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If a polynomial function f(x) has roots -8, 1, and 6i, what must also be a root of f(x)?
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Step-by-step explanation:

If a polynomial is expressed with real coefficients (which must be the case if it is a function f(x) in the Real coordinate system), then if it has a complex root "a+bi", it must also have for root the conjugate of that complex root.

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where the imaginary unit has disappeared, making the expression real.

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5 0
3 years ago
A tree that is 100 feet tall casts a shadow that is 150 feet long. Determine the angle at which the rays of the sun hit the grou
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Answer:

Step-by-step explanation:

A tree that is 100 feet tall casts a shadow that is 150 feet long ...

The angle at which the ray of the sun hit the ground is that which has a tangent equal to 100 / 150 or 2/3. This angle is equal to 33.69. Thus, the answer is letter B. 34°

5 0
3 years ago
Read 2 more answers
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