3 years ago

Perform the operation. Enter your answer in scientific notation. 7 × 102 − 5.6 × 102 =

Mathematics

1 answer:

Zarrin [17]3 years ago

3 0

The answer is 142.8

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What is the value of x?

lord [1]

1. When the lines cross, the form to angles that opposite each other: (2x+2)º and (3x-52)º. By definition, they are "Vertical angles" and are congruent. Then, to find the value of "x", you must follow the proccedure below:

2x+2=3x-52

2. When you clear "x", you obtain:

2+52=3x-2x
x=54º

Therefore, the value of "x" is 54º

3 0

3 years ago

PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!<br><br> Solve: log2(x-4) = 4

user100 [1]

Answer: D) 20

<u>Step-by-step explanation:</u>

Use log rules to convert log into exponent:

$log_a(x)=y\quad \rightarrow \quad x=a^y\\\\log_2(x-4)=4\quad \rightarrow \quad x-4=2^4\\\\x-4=16\\.\qquad x=20$