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Artemon [7]
3 years ago
15

Evaluate 12x – 3y when x = -1/4 and y=3. The value of the expression is

Mathematics
1 answer:
kap26 [50]3 years ago
3 0

Answer:

3

Step-by-step explanation:

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2x+9−5x=12 i dont under stand how to get the answer
Alona [7]
Answer:
The answer is x=-1
6 0
2 years ago
Can someone please help me in this question
Pie

Step-by-step explanation:

a) Let y = f(x) = 3x - 2x^2

f(-2) = 3(-2) - 2(-2)^2 = p

= -6 - 8

= -14

= p

f(2.5) = 3(2.5) - 2(2.5)^2 = q

= 7.5 - 12.5

= -5

= q

b) graphing

c) From the graph, you should be able to verify the following:

i) f(0.5) = 3(0.5) - 2(0.5)^2 = 1

ii) 0.5 = 3x - 2x^2 or x = 1.3, 0.2

iii) the maximum occurs at

f(0.75) = 1.125

d) the equation for the line of symmetry is x = 0.75

4 0
2 years ago
14. Write a linear equation to represent the sequence 3, 7, 11, 15, ….
Amiraneli [1.4K]

Answer:

RECURSIVE: f(n)=f(n-1)+4

EXPLICIT: f(n)=3+4n

6 0
3 years ago
Leigh has a piece of rope that is 6 2/3 feet long. How do you write 6 2/3 as a fraction greater than 1
aleksley [76]
20/3 - Take the 6 2/3, multiply the 6 and the 3 (6 x 3 = 18), then add the 2 (18 + 2 = 20). Put that number over the original 3 and you've got yourself a mixed number.
4 0
3 years ago
Read 2 more answers
The midpoint of AB is M (-3,-3) if the coordinates of A are (-8,-2)what are the coordinates of B
bearhunter [10]

The coordinates of B would be (2, -4)

In order to find this, we need to know that the value of M's points will always be the average of A and B's points. This is because it is the midpoint. Therefore we can use the following formula.

Value of x

(A + B)/2 = M

(-8 + B)/2 = -3

-8 + B = -6

B = 2

Then we can do the same for the y values

Value of y

(A + B)/2 = M

(-2 + B)/2 = -3

-2 + B = -6

B = 4

7 0
3 years ago
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