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2 years ago

Help please. (12 points)

Mathematics

1 answer:

Sphinxa [80]2 years ago

6 0

because the symbol is a less than sign < the blue area needs to be below the red line and does not include the solution to Y ( if it included Y it would be a ≤ symbol.
When the solution isn't included, it is a dashed line.
so the answer would be D

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Plz help guys! I will mark everyone who answers correctly for each one! Plz!

ryzh [129]

Answer:

Let's say that x is sam's age and y is Amy's age

x=y-4

and five years ago:

x-5=(y-5)/2

y-4-5=(y-5)/2

2y-18=y-5

y=13

x=9

then:

sam's age is 9 and Amy's age is 13

5 0

2 years ago

Read 2 more answers

A quadratic function and an exponential function are graphed below. How do the decay rates of the functions compareover the inte

Kobotan [32]

To check the decay rate, we need to check the variation in y-axis.

Since our interval is

$-2We need to evaluate both function at those limits.At x = -2, we have a value of 4 for both of them, at x = 0 we have 1 for the exponential function and 0 to the quadratic function. Let's call the exponential f(x), and the quadratic g(x).[tex]\begin{gathered} f(-2)=g(-2)=4 \\ f(0)=1 \\ g(0)=0 \end{gathered}$

To compare the decay rates we need to check the variation on the y-axis of both functions.

$\begin{gathered} \Delta y_1=f(-2)-f(0)=4-1=3 \\ \Delta y_2=g(-2)-g(0)=4-0=4 \end{gathered}$

Now, we calculate their ratio to find how they compare:

$\frac{\Delta y_1}{\Delta y_2}=\frac{3}{4}$

This tell us that the exponential function decays at three-fourths the rate of the quadratic function.

And this is the fourth option.

4 0

5 months ago

If yall help me with all the answers ill give you 32 points. Ik this is easy but I'm too lazy to do this. someone help me, pleas

Anna007 [38]

Answer:

100-both

75-5

565- 5

2815- 5

10050- both

57- 3

1365- 3

14- 2

81- 3

3850- 2

333- 9

1125- 9

448- 8

630- 9

5496- 8

114- 6

21,750- 6

3580- 4

2528- 4

944- 4

Step-by-step explanation:

8 0

2 years ago

Write the equation of the graphs which have m=2, c = 1

jonny [76]

Answer:

y = 2x + 1

Step-by-step explanation:

formula for equation of graph:

$y = mx + c$

substitute m = 2 and c = 1 into the equation

$y = 2x + 1$

3 0

2 years ago

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Emily was going to sell all of her stamp collection to buy a video game. After selling half of them she changed her mind. She th

siniylev [52]

Answer:

starts wuth 46, and sells half, so she has 23. then when she buys 17 more she then has 40.

if you are asked to show work its 46/2=23, then 23+17=40!

7 0

2 years ago

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