Answer:
7
Step-by-step explanation:
note the input is the value of x and the output the value of y
Given
y = 3x - 5 ← substitute x = 4
y = 3(4) - 5 = 12 - 5 = 7 ← output
Your answer is 5, you use the formula for a pyramid
Answer:
help me first on this question
Step-by-step explanation:
Answer:
f(x) = 8x² + 2x - 5
Step-by-step explanation:
I think you meant to put an 8 instead of *.
Anyways, f(x) = 8x² + 2x - 5 is a quadratic function because there is 8x² in the function.
If this answer is correct, please make me Brainliest.
Answer:
The number of messages sent by Melissa was 25
The number of messages sent by Keith was 60
The number of messages sent by Chau was 15
Step-by-step explanation:
Let
x ----> the number of messages sent by Melissa
y ----> the number of messages sent by Keith
z ----> the number of messages sent by Chau
we know that
------> equation A
----->
----> equation B
-----> equation C
substitute equation B and equation C in equation A
Solve for z
<em>Find the value of x</em>

<em>Find the value of y</em>
therefore
The number of messages sent by Melissa was 25
The number of messages sent by Keith was 60
The number of messages sent by Chau was 15