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andrezito [222]
2 years ago
5

(Please help ill give brainliest)

Mathematics
1 answer:
elena-s [515]2 years ago
6 0

Answer:

80 answer is 80

Step-by-step explanation:

50+30 = 80 answer

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(100 points) ASAP need help with khan academy practice
Strike441 [17]

Answer:

125,

Step-by-step explanation:

the answer would be fifteen because 5 to the third power is 125.

3 0
2 years ago
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The sum of a number and 5 times a second number is represented by the equation a+5b=19 . The sum of half of the first number and
TiliK225 [7]
Here you have a system of 2 equations and 2 unknowns. An easy way to solve this type is to isolate one of the variables.

12a + 2b = 8
2b = 8 - 12a
b =
b =  \frac{8 - 12a  }{2}
b = 4 - 6a

Now plug 4 - 6a into equation 1 to solve for a.

a + 5(4 - 6a) = 19

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4 0
3 years ago
Solve the polynomial: 2x³-11x²+18x-8=0
kotykmax [81]

Answer:

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Step-by-step explanation:

To solve the polynomial, factorize it.

2x³-11x²+18x-8=0

After factorizing:

(x-2)(2x^2 - 7x +4) = 0

now, solve each bracket one by one:

x-2 = 0

x = 2

Then

2x^2 - 7x + 4 = 0

use quadratic formula t get 0.74

7 0
3 years ago
Is the number 0.232342345... rational or irrational?
aev [14]

Answer: Irrational

Step-by-step explanation:

8 0
3 years ago
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Please help also its a one answer question!!
KIM [24]

Answer:

I'm not sure if I'm right but my best answer is C

3 0
2 years ago
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