All categories

3 years ago

2a+4(7+5a)I need help

Mathematics

2 answers:

kolezko [41]3 years ago

6 0

2a+4(7+5a)

Distribute 4 into 7 and 5a

2a+28+20a

Combine like terms

Final Answer: 22a+28

Gekata [30.6K]3 years ago

3 0

Hello!

First of all, we undo the parentheses using the distributive propoerty.

2a+28+20a

We combine our like terms.

22a+28

I hope this helps!

You might be interested in

Name two pairs of pallel lines in the figure

Reika [66]

What figure you didn't post it???

4 0

3 years ago

Read 2 more answers

Solve for p :<br> 8=p/7

Katena32 [7]

Answer:

p=56

Step-by-step explanation:

multiply by 7 to get it out of denominator

8 0

3 years ago

Read 2 more answers

What is the answer to 3/5 x 10/21 in simplest form???

jeka94

6/21 I think cause you can't go down any more

3 0

3 years ago

Read 2 more answers

Dan and barney are members of different video game libraries. Dan pays a membership fee of $35, and he pays $4 for every video g

ella [17]

Dan pays $5 more than Barney because his membership fee is $35, while Barney's is only $30.

The answer is $5.

5 0

3 years ago

Read 2 more answers

Please this is due tonight!!! Express given logarithm in terms of a, b and c.

KATRIN_1 [288]

$\textit{Logarithm Change of Base Rule} \\\\ \log_a b\implies \cfrac{\log_c b}{\log_c a}\qquad \qquad c= \begin{array}{llll} \textit{common base for }\\ \textit{numerator and}\\ denominator \end{array} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \log_5(18)\implies \cfrac{\log(18)}{\log(5)}\implies \cfrac{\log(2\cdot 3\cdot 3)}{\log(5)}\implies \cfrac{\log(2)+\log(3)+\log(3)}{\log(5)}$

$\begin{cases} \log(3)=a\\ \log(2)=b\\ \log(5)=c \end{cases}\implies \cfrac{b+a+a}{c}\implies \cfrac{b+2a}{c} \\\\[-0.35em] ~\dotfill\\\\ \log_5^2(18)\implies [\log_5(18)]^2\implies \left( \cfrac{b+2a}{c} \right)^2\implies \cfrac{(b+2a)^2}{c^2} \\\\[-0.35em] ~\dotfill\\\\ ~\hfill \cfrac{b^2+4ab+4a^2}{c^2}~\hfill$

8 0

3 years ago