How could you solve this problem?

Mathematics

2 answers:

Rudiy273 years ago

7 0

I do A and B but that is the way I learned it. Hope this helps :)

Oliga [24]3 years ago

3 0

the first two are the only ones that are true

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Need help please exams tomorrow

Romashka [77]

Answer:

The value of x is 14.

Step-by-step explanation:

We know that:

ΔABC ≅ ΔEFG
21 x 2/3 = x

Work:

21 x 2/3 = x
=> 7 x 3 x 2/3 = x
=> 7 x 2 = x
=> 14 = x

Hence, the value of x is 14.

Hoped this helped.

7 0

2 years ago

Solve each equation (Isolating first)

Dvinal [7]

$3 \times {( \frac{1}{8} )}^{2x} = 12 \\ \Leftrightarrow {( \frac{1}{8} )}^{2x} = 4 \\ \Leftrightarrow {( {2}^{ - 3}) }^{2x} = {2}^{2} \\ \Leftrightarrow {2}^{ - 6x} = {2}^{2} \\ \Leftrightarrow - 6x = 2 \\ \Leftrightarrow x = - \frac{1}{3} \\ \\ 2 {\sqrt[3]{5}}^{4x} = 50 \\ \Leftrightarrow { \sqrt[3]{5} }^{4x} = 25 \\ \Leftrightarrow {5}^{ \frac{4x}{3} } = {5}^{2} \\ \Leftrightarrow \frac{4x}{3} = 2 \\ \Leftrightarrow 4x = 6 \\ \Leftrightarrow x = \frac{3}{2}$