Question

A) (-12-12,4 + 10): (-8)×(-4);6) (-27,3: 4,2 + 10): (-8)×(-5,6) - 3,8;пж помогите ​

Answer 1

Ответ:

а) (-12-12,4 + 10): (-8)×(-4)= (-24,4+10):32 = -14,4/32= -7,2/16= -0,45

б) (-27,3: 4,2 + 10): (-8)×(-5,6) - 3,8= (-6,5+10):(44,8-3,8)= 3,5/41 = 0,085= 0,09

Пошаговое объяснение:

Answer 2

It seems like you've provided a set of mathematical expressions. Let's break them down step by step:

A) $(-12-12,4 + 10): (-8)×(-4)$

First, perform the operations inside the parentheses:

$(-12 - 12.4 + 10) \div (-8) \times (-4)$

Combine like terms:

$(-14.4) \div (-8) \times (-4)$

Now, perform the division:

$1.8 \times (-4)$

Multiply:

$-7.2$

B) $(-27,3: 4,2 + 10): (-8)×(-5,6) - 3,8$

Again, start by performing the operations inside the parentheses:

$(-27.3 \div (4.2 + 10)) \div (-8) \times (-5.6) - 3.8$

Combine like terms inside the parentheses:

$(-27.3 \div 14.2) \div (-8) \times (-5.6) - 3.8$

Perform the division inside the first set of parentheses:

$-1.923 \div (-8) \times (-5.6) - 3.8$

Now, multiply and subtract:

$1.728 \times (-5.6) - 3.8$

$-9.6768 - 3.8$

$-13.4768$

So, the values of the given expressions are:

A) $-7.2$

B) $-13.4768$