Mathematics: Which expression is equivalent to 2/7k(k-7)? assume k=0.a. 2/7-k,b. 2/7-2/k,c. 2k/7-7,d. 2k/7k-2k

Which expression is equivalent to 2/7k(k-7)? assume

Ответ:

lerasteidl

11.03.2022

$\dfrac{2}{7k}(k-7)\qquad|\text{use distributive property}\\\\=\left(\dfrac{2}{7k}\right)(k)-\left(\dfrac{2}{7k}\right)(7)=\dfrac{2}{7}-\dfrac{2}{k}$

0,0(0 оценок)

Ответ:

BrezzyGirl9148

11.03.2022

Mathematics

ANSWER

B.
$\frac{2}{7k} (k - 7) = \frac{2}{7}- \frac{2}{k}$

EXPLANATION

The given expression is

$\frac{2}{7k} (k - 7)$
where k≠0

We expand the bracket to get,

$\frac{2}{7k} (k - 7) = \frac{2}{7k} \times k - \frac{2}{7k} \times 7$

We now cancel out the common factors to obtain,

$\frac{2}{7k} (k - 7) = \frac{2}{7} \times 1- \frac{2}{k} \times 1$

We now simplify to obtain,

$\frac{2}{7k} (k - 7) = \frac{2}{7}- \frac{2}{k}$

The correct answer is option B.

0,0(0 оценок)

Ответ:

crosales102

10.11.2022

Mathematics

4x-3

Step-by-step explanation:

0,0(0 оценок)

Which expression is equivalent to 2/7k(k-7)? assume k=0.a. 2/7-k,b. 2/7-2/k,c. 2k/7-7,d. 2k/7k-2k

Ответ:

Ответ:

Ответ:

Ask your question to the AI advisor

More tips

Answers on questions: Mathematics

Ask an AI advisor a question