HELP PLZ ASPUse properties to evaluate the expression. (13 + 6) + 4 A. 19 B. 23 C. 27 D. 37

2 answers:

7 0

Well first you HAVE to use properties so that means PEMDAS.

P stands for parenthesis,
E stands for exponents,
M for multiplication,
D for division,
A for addition,
S for subtraction

So as you can see you have 2 properties in the expression E and A properties.
E will be done first becuz the letter E comes before A in PEMDAS (13+6) equals 19 then you add 4.

19+4= 23

YOUR ANSWER IS: B- 23

ELEN [110]3 years ago

4 0

The answer is 23 hope this helped

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I need help

algol [13]

Answer:

1. No.

2. Yes, there is no solution here.

Step-by-step explanation:

The former:

$8(5x - 3) = 6(-3x - 4); \\ 8 * 5x - 8 * 3 = 6 * (-3x) - 6 * 4; \\ 40x - 24 = -18x - 24; \\ 40x + 18x = -24 + 24; \\ 58x = 0; \\ x = 0.$

$\{0\}$ is our set of solutions.

The latter:

$3x - 13 = 7(x + 2) - 4(x - 7); \\ 3x - 13 = 7x + 7 * 2 - 4x - 4 * (-7); \\ 3x - 13 = 7x + 14 - 4x + 28; \\ 7x - 4x - 3x = -13 - 14 - 28;\\ 0x = 55; \\ x \in \emptyset.$