Answer:
The base is 4cm and the height is 5cm.
Step-by-step explanation:
This is a solve the system question. Call H the height of the triangle and B the base. The question tells us:

and

Sub the first equation into the second (as H is already isolated). You will end up with a quadratic equation - solve that any way you wish (e.g. quadratic formula). I've provided the factored form below which shows you the roots:

In this question, we take B=4. You can't have a negative side length so the other answer is eliminated. Now sub the value for B into either of the original equations. I'll use the first, again because H is already isolated:

Answer:
i dont know to be honest
Step-by-step explanation:
Answer:
Positive gradient and the gradient is 3/2x
Option 2:
is the right answer
Step-by-step explanation:
Given fraction is:

To solve the fraction, Taking LCM in denominator and numerator

When the numerator and denominator both have fractions, the simplified form is obtained be multiplying the numerator with reciprocal of the denominator. So,

Hence,
Option 2:
is the right answer
Keywords: fractions, simplification
Learn more about fractions at:
#LearnwithBrainly