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AnnyKZ [126]
11 months ago
12

HELPPPPP What is the value of 13(a • b + a2) + 4 if a = 5 and b = −3? 308 134 −74 −126

Mathematics
1 answer:
9966 [12]11 months ago
6 0

The value of the expression 13(a×b + a²) + 4 is 1434 after plugging a = 5 and b = - 3.

<h3>What is an expression?</h3>

It is defined as the combination of constants and variables with mathematical operators.

The expression is:

= 13(a×b + a²) + 4

Plug a = 5

b = -3

= 13(5×(-3) + 5a²) + 4

= 13(-15 + 5(25)) + 4

= 13(-15 + 125) + 4

The arithmetic operation can be defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has basic four operators that is +, -, ×, and ÷.

= 13(110) + 4

= 1430 + 4

= 1434

Thus, the value of the expression 13(a×b + a²) + 4 is 1434 after plugging a = 5 and b = - 3.

Learn more about the expression here:

brainly.com/question/14083225

#SPJ1

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Question 10 Please Help
svet-max [94.6K]

Answer:

1)· 5x + 2y = 9. First we solve for y. 2y= 9 -5x. y=(9-5x)/2. Now that we have the value of y. We substitute on the original equation and resolve. 5x + 2y = 95x + 2y = 9  5x + 2(9-5x)/2 = 9  5x + 9 - 5x = 9  9 = 9

That would be x = 1  

Now substitute and resolve to find y.  

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5 + 2y = 9

2y = 4

y = 2

So our answer x=1 and y = 2. (1,2)

Proof :  

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Step-by-step explanation:

hoped it helped for the first  one  i didnt now the second one

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