3 years ago

What is (7x3+3)+(4+2) hurry p[ease

Mathematics

1 answer:

allsm [11]3 years ago

3 0

(7x3+3) + (4+2) is 30

You might be interested in

Can some please help ASAP

Lubov Fominskaja [6]

Answer:

9x-3

Step-by-step explanation:

To do this, we can make an equation and add like terms.

The equation is 2x+3x-1+4x-2=p. P stands for perimeter.

Now, simplify. Add like terms.

9x-1-2=p

9x-3=p

9x-3

The answer is D. 9x-3

Hope this helps!

7 0

3 years ago

Read 2 more answers

Ln a+3 + ln a-3 = ln 16

Lilit [14]

$\bf log_{{ a}}(xy)\implies log_{{ a}}(x)+log_{{ a}}(y)\\\\
and\qquad \textit{difference of squares}
\\ \quad \\
(a-b)(a+b) = a^2-b^2\qquad \qquad 
a^2-b^2 = (a-b)(a+b)\\\\
-----------------------------\\\\
ln(a+3)+ln(a-3)=ln(16)\implies ln[(a+3)(a-3)]=ln(16)
\\\\\\
ln[a^2-3^2]=ln(16)\impliedby \textit{removing ln() from both sides}
\\\\\\
a^2-9=16\implies a^2=16+9\implies a^2=25
\\\\\\
a=\pm\sqrt{25}\implies a=\pm 5$