Answer:
Step-by-step explanation:
We have the following solution:
We want to find the value of x that satisfies the following condition:
y(3) = 3.
This means that when x = 3, y = 3. So
The first and the 2nd one are correct because x is 21 and y is 49
3 and 4 at wrong
Answer:
x = -7 ±3i
Step-by-step explanation:
(x+7)^2+9=0
Subtract 9 from each side
(x+7)^2+9-9=0-9
(x+7)^2=-9
Take the square root of each side
sqrt((x+7)^2) = ±sqrt(-9)
We know sqrt(ab) = sqrt(a) sqrt(b)
x+7 = ±sqrt(-1) sqrt(9)
We know that sqrt(-1) is the imaginary number i
x+7 = ±i *3
x+7 =±3i
Subtract 7 from each side
x+7-7 = -7 ±3i
x = -7 ±3i
Hello there!
The would be a (right angle) because this angle is not greater than, or less than 90°.
Your correct answer would be the first option. (right angle).
