Answer:
f = -1
Step-by-step explanation:
We are tasked to solve the value of p(8a) in the expression p(x)=3x^2-4.
This means that what would find the value of the expression when x=8a. To solve this, we simply substitute the value of x in the expression.
p(x)=3x^2-4
p(8a)=3(8a)^2-4
p(8a)=3(64a^2)-4
p(8a)=192a^2-4
Answer:
Pretty sure she was best known for calculating flight paths of spacecraft.
The number of books in her summer reading list is = 20
The number of books that has been read by Emma = 14
The percentage of books that has been read by Emma = 70%
But the percentage of books in Emma summer reading list = 100%
∴ The number of books in her reading list= ˣ
That is ;
70% = 14
100% = ˣ
Make ˣ the subject of formula,
ˣ = 100 × 14 / 70
ˣ = 20
Learn more here:
brainly.com/question/20766171
X = -5y
Substitute the value of x in first equation,
x + y = 8
(-5y) + y = 8
-4y = 8
y = -8/4
y = -2
Now, substitute the value of y in 2nd equation,
x = -5(-2)
x = 10
In short, Your Answer would be; (10, -2)
Hope this helps!