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Katyanochek1 [597]
3 years ago
7

Evaluate xy-x; use c =4, and y =4​

Mathematics
1 answer:
Ilya [14]3 years ago
4 0

Answer:

12

Step-by-step explanation:

You would substitute

4(4)-4

then simplify

16-4

then subtract

12

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Which is the correct answer?
dlinn [17]

Answer:

A

Step-by-step explanation:

6 0
3 years ago
Simplify <br>(8/14 - 2/8) + 1/7​
konstantin123 [22]

Answer:

13/28.

Step-by-step explanation:

(8/14 - 2/8) + 1/7

We can just remove the parentheses and simplify its contents:

=  4/7 - 1/4 + 1/7

= 4/7 + 1/7 - 1/4

= 5/7 - 1/4      The LCD of 7 and 4 is 28 so we have:

20/28 - 7/28

= 13/28.

7 0
3 years ago
Hat is the value of the expression –5x4 when x = –2?
sleet_krkn [62]

\bold{Hey\ there!}

\bold{Assuming,\ you\ meant: -5(-2)^4}

  • \bold{If\ so\ follow\ these\ steps\downarrow}
  • \bold{(-2)^4=16}
  • \bold{(-5)\times 16=-80}
  • \boxed{\boxed{\bold {Thus,\ your\ answer\ is: -80}}}\checkmark

\bold{Good\ luck\ on\ your\ assignment\ \& \ enjoy\ your\ day!}

~\frak{LoveYourselfFirst:)}

7 0
3 years ago
The square of a number is 15 more than 2 times the number
UkoKoshka [18]

x^2 = 2x + 15

x^2 -2x - 15 = 0

Factor:

(x-5)(x+3) = 0

x = 5 or x = -3

3 0
3 years ago
5.<br> (x + 10°)<br> (x + 20°)
bagirrra123 [75]
What are you asking here? I need more information to solve please
3 0
2 years ago
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