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Sliva [168]
3 years ago
11

Find two numbers whose sum is 58 and whose difference is 16 Can anyone help me out

Mathematics
1 answer:
White raven [17]3 years ago
7 0
X, y - the numbers

x+y=58 \\
\underline{x-y=16} \\
x+x+y-y=58+16 \\
2x=74 \\
x=37 \\ \\
x+y=58 \\
37+y=58 \\
y=21

The two numbers are 37 and 21.
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3 years ago
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If f(x) = 2x6 + 3x5 – 1, then what is the remainder when f(x) is divided by<br> x + 1?
Alchen [17]
<h3>Answer:   -2</h3>

===============================================

Explanation:

We use the remainder theorem. This is the idea where if we divide P(x) over (x-k), then the remainder is P(k).

Comparing x+1 to x-k shows that k = -1

It might help to rewrite x+1 as x-(-1) to get it into the form x-k better.

Plug this k value into the function

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f(-1) =-2

The remainder is -2

We can confirm this through synthetic division or polynomial long division.

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Help Please....................................................
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Answer:

the answer is a

Step-by-step explanation:

hope that i helped

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