Question

Обчислити: а) 16(- 3, 5); 6) - 5 3/5 * (- 1 4/21)

Answer 1

А)-56;б)20/3
Надеюсь помогла

Answer 2

a) 16(-3, 5): To calculate this expression, we need to multiply 16 by the sum of -3 and 5.

First, we add -3 and 5: -3 + 5 = 2 Then, we multiply 16 by 2: 16 * 2 = 32

So the value of 16(-3, 5) is 32.

b) -5 + 3/5 * (-1 + 4/21): To calculate this expression, we need to follow the order of operations which is parentheses, multiplication/division, and then addition/subtraction.

First, let's simplify the expression inside the parentheses: -1 + 4/21. To add -1 and 4/21, we need to find a common denominator, which is 21. -1 * 21/21 = -21/21 4/21 remains the same.

Now we can add -21/21 and 4/21: -21/21 + 4/21 = -17/21

Next, let's simplify the multiplication: 3/5 * (-17/21). To multiply fractions, we multiply the numerators together and the denominators together. 3 * -17 = -51 5 * 21 = 105

So the product of 3/5 and -17/21 is -51/105

Finally, let's add -5 and -51/105: -5 + (-51/105) To add fractions, we need a common denominator, which is 105. -5 * 105/105 = -525/105

Now we can add -525/105 and -51/105: -525/105 + (-51/105) = -576/105

So the value of -5 + 3/5 * (-1 + 4/21) is -576/105.