Start off by knowing that the two triangle are congruent. By knowing this you can turn the given numbers into fractions.
9/72 = 7/7x+7
then cross multiply, which equals
63x + 63 = 504
then solve this equation
63x = 441 - subtract 63 from both sides
x = 7 - divide by 63 from both sides
so your answer is x=7
Answer:
Option A)

Step-by-step explanation:
We are given the following in the question:
Roots of quadratic equation are:

The sum of the roots and the product of the roots can be calculated as:

Standard form of quadratic equation:

Putting values, we get,

is the required quadratic equation.
Thus, the correct answer is
Option A)

Answer:
6:24
1:4
2:8
Step-by-step explanation:
Simplified all the way is 1:4 so just make sure that you multiply the same number by both the numerator and the denominator
Answer:
answer is -7/2
Step-by-step explanation:
Answer:
x = 6.7
Step-by-step explanation:
We know that 3.5 + x = 10.2, so if we do inverse operations we can find out the value of x.
10.2 - 3.5 = 6.7
we can check our work by substituing it back in the equation for x
6.7 + 3.5 = 10.2
so now we know that x = 6.7. I hope this helps :)