Answer:
(x-1) (x+4)
Step-by-step explanation:
i used something called the box method, basically the way i got the answer is what equals 3 when added, but multiplies to make -4
Using the formula a² + b² = c² but reversing it to c² - b² = x² where x replaces the a for comprehension reasons
so this is the formula
c² - b² = x²
insert the numbers on the triangle in the picture
21² - 8² = 377
since 377 is squared and not the side length, we need to square root it to find x
√377 = 19.4~
Answer: x = 19.4
Answer: well first you need to send the picture
Step-by-step explanation:
1. Take the picture
2. Post it to brainly
3. Get your answer
Answer:
Answers are 20, 12 and 16
Step-by-step explanation:
Y=4x
for x = 5
y=4(5)
y=20
for x = 3
y=4(3)
y=12
for x = 4
y=4(4)
y=16
It's definitely A, gotta be.
