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sergiy2304 [10]
2 years ago
6

Evaluate the expression

Mathematics
1 answer:
Oksanka [162]2 years ago
6 0

answer: I think the result is 12

Step-by-step explanation:

c(b+a)-a=

2(3+6)-6=

6+12-6= 12

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Plz help I'll give brainy!!!
marta [7]

Answer:

see below

Step-by-step explanation:

we are given a exponential function

\displaystyle y =   \left(1/5\right) ^{x}

we want to figure out the missing values of y for x i.e (-2,-1, and 2) to do we can consider substituting so,

when x is -2 y should be

\displaystyle y =   \left(1/5\right) ^{ - 2}

rewrite ⅕ in exponent notation:

\displaystyle y =   \left((5) ^{ - 1} \right) ^{ - 2}

by law of exponent we obtain:

\displaystyle y =   (5) ^{ 2}

simplify square:

\displaystyle y =   \boxed{ 25}

when x is -1:

\displaystyle y =   \left(1/5\right) ^{ - 1}

rewrite ⅕ in exponent notation:

\displaystyle y =   \left((5) ^{ - 1} \right) ^{ - 1}

use law of exponent which yields:

\displaystyle y =    \boxed5

when x is 3:

\displaystyle y =   \left(1/5\right) ^{ 3}

by law of exponent we obtain:

\displaystyle y =   1/ {5}^{3}

simplify square which yields:

\displaystyle y =   \frac{1}{ \boxed{125}}

5 0
3 years ago
Which is the decimal expansion of the following 1/5
amid [387]

Answer:

Decimal expansion of 1/5 = 0.2

7 0
3 years ago
Plssssssss do 1, 2, 3, 4, and 5
Delicious77 [7]

Answer/Explanation:

1)

  • 3 · 7 + (3 · 8n
  • 21 + 24n

2)

  • 8 · 2x + 8 · 7
  • 16x + 56

3)

  • -4 · 7r + (-4) · 7
  • -28r + (-28)
  • -28r -28

4)

  • -2 · n - 2 · (-9)
  • -2n + 18

5)

  • -6 + 9 · 8 + 9 · (-2b)
  • -6 + 72 - 18b
  • 66 - 18b
7 0
3 years ago
12p+ 15 - 13 - 12p<br><br> And show me how you got the answer
dezoksy [38]

Answer:

2

Step-by-step explanation:

According to me, you would just have to combine like terms and simplify them as much as possible.

12p + 15 - 13 - 12p

12p - 12p + 15 - 13

0 + 15 - 13

0 + 2

2

Hope this helps :D

5 0
4 years ago
A candy manufacturer makes two types of special candy, say A and B. Candy A consists of equal parts of dark chocolate and carame
Sphinxa [80]
If we let x as candy A
y as candy B
a as dark chocolate in candy a
b as dark chocolate in candy b
c as caramel
d as walnut
P as profit
we have the equations:
a + c = x
2b + d = y
a + 2b ≤ 360
c ≤ 430
d ≤ 210
P = 285x + 260y

This is an optimization problem which involves linear programming. It can be solved by graphical method or by algebraic solution.
P = 285(a + c) + 260(2b +d)
If we assume a = b
Then a = 120, 2b = 240
P = 285(120 + 120) + 260(240 + 120)
P = 162000
candy A should be = 240
candy B should be = 360
6 0
4 years ago
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