Answer:
B is true
Step-by-step explanation:
ratio of all corresponding sides are equal
Questions are USUALLY answered within 10 minutes.
Therefore, you're questions might be complicated, hard, or incomplete.
Actual people are answering these questions, so obviously the easier questions get answered first.
Answer:
Second option: (-2,-3) and (1,0)
Step-by-step explanation:
Given the system of equations , you can rewrite them in this form:
Simplify:
Factor the quadratic equation. Choose two number whose sum be 1 and whose product be -2. These are: 2 and -1, then:
Substitute each value of "x" into any of the original equation to find the values of "y":
Then, the solutions are:
(-2,-3) and (1,0)
for number 19, figure out the exponents then multiply.
for scientific notaintion you figure out how many numbers are behind the decimal , then do that number as an exponient to 10 then multiply by that number. i hope i made a bit of sense. if not look at kahn academy for help !