Katy wants to sell her car, which she bought six years ago for $35,000. Since then, the value of the car has depreciated and it is now estimated to sell for $5,000. Looking at the graph, what type of correlation do you see between the value of the car and the age of the car

Answers

Answer 1

Answer: A negative correlation: when the number of years increase the value of the car decrease.

Answer 2

Answer:

Step-by-step explanation:

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Find the slope and y-intercept of the line
6x + 2y = –88

Answers

y=mx+b
6x+2y=-88
2y=-88-6x
y=-44-3x
y=-3x-44
m is the slope
b is the y-intercept

I need help solving. The answer is (2,-6)Which ordered pair is the solution to the system of equations?

{x=1/2y+5
2x+3y=−14

(8, 9)

(−1, −12)

(18, 14)

(2, −6)

Answers

Since we are given x in terms of y, the most efficient way to solve it would be to substitute in the $(1)/(2)y+5$ for x in the second equation. So, we then have:

$2((y)/(2)+5)+3y=-14 \implies \ny+10+3y=-14 \implies \n4y+10=-14 \implies\n4y=-24 \implies \ny=-6$

So, now that we have our y, we can find x. We can actually use either equation, top or bottom, to find x, but to be efficient we should use the top one since we have x in terms of y, so:

$x=(-6)/(2)+5 \implies \nx=-3+5 \implies \nx=2$

So, our ordered pair is (2,-6).

The graph of y=4x^2+16x-18 has an axis of symmetry at x=___

Answers

Answer:

x = - 2

Step-by-step explanation:

Given

y = 4x² + 16x - 18

with a = 4, b = 16 , then the equation of the axis of symmetry is

x = - $(b)/(2a)$ = - $(16)/(8)$ = - 2

Sam's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Sam $5.70 per pound, and type B coffee costs $4.15 per pound. This month, Sam made 142 pounds of the blend, for a total cost of $688.50. How many pounds of type B coffee did he use?

Answers

Answer:

165.90 pounds

Step-by-step explanation:

Answer:

165.90

Step-by-step explanation:

Expanded form of 3(z +5)?

Answers

Answer:

3z+15

Step-by-step explanation:

By using the distributive property of equality you can distribute the 3 into the parenthesis to find that 3 times z is 3z and 3 times 5 is 15 so 3z+15

Answer:

3z+15

Step-by-step explanation:

This is Algebra*Factor the trinomial or state that it is prime*

1. t^2 +2t - 48 =

2. t^2 + 16t - 48 =

3. t^2 - 13t - 48 =

4. x^2 - 17x + 42 =

5. x^2 + 13x - 30 =

Answers

1. ( t + 8) (t - 6) t = -8 and 6
2. prime
3. (t - 16) (t + 3) t = 16 and -3
4. prime
5. (t + 15) (t - 2) t = -15 and 2

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