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3 years ago

Consider the graph of the line of best fit, y = 0.5x + 1, and the given data points.

Mathematics

2 answers:

Georgia [21]3 years ago

5 0

Which is the residual vaulewhen x=2
The answer would be -1

koban [17]3 years ago

5 0

The residual value is the vertical distance between the observed value and the predicted value. In other words,

residual value = point in scatter plot - point in the line of best fit

When $x=2$ , the corresponding scatter plot point is at $y=1$ and the corresponding point in the line of best fit is $y=2$ [can be seen from the graph]

Hence,

residual value = $1-2=-1$ . Answer choice B is correct.

ANSWER: B

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Each week, tasha saves 90% of the money she earns babysitting and spends the rest. this week she earned $60.00. how much more mo

padilas [110]

She saved $54 spent $6 so she saved $48 more then she spent

6 0

3 years ago

PLEASE HELP. I don't know what to do. I tryed all the equations and the problem but none matched up. plz help

xz_007 [3.2K]

Answer:

178

1900 = 5(x+202)

Step-by-step explanation:

Sasha= 5 times Bess and Jeremy

1900 = 5 (202 + X)

/5 /5

380 = 202 + x

-202 -202

178 = x

8 0

3 years ago

A poker hand is a set of 5 cards randomly chosen from a deck of 52 cards. Find the probability of a (a) royal flush (ten, jack,

zysi [14]

Answer:

a) 0.000001539

b) 0.00001385

c) 0.0002401

d) 0.001441

e) 0.001966

Step-by-step explanation:

Since there are 52 deck of cards, and the hand of the poker is 5 set, then the total number of hands achievable would be

T = 52! / 5!(52 - 5)!

T = 52! / 5! 47 !

T = 2598560 possibilities.

a) There are 4 ways of getting a royal flush. So the probability of getting a royal flush is

4 / 2598560 =

0.000001539

b) There are 9 hands from the 5 card hands, and also, there are 4 possible suits. So then, the probability is

9 * 4 / 2598560 =

36 / 2598560 =

0.00001385

c) There are 13 possible ways to get a four of a kind, since there are 5 cards with the poker, the remaining would be taken from the 48 remaining cards, thus

13 * 48 / 2598560 =

624 / 2598560 =

0.0002401

d) 3 of a kind in conjunction with a pair is needed to form a full house. This 3 of a kind can be gotten from any 4 suits. Then again, the pair has two cards with the same face value. So,

4! / 2! (4 - 2)! =

4! / 2! 2! = 6

That means, there are 6 possible ways to get our needed suits. Then, the probability of getting a full house is

13 * 4 * 12 * 6 / 2598560 =

3744 / 2598560 =

0.001441

e) To get a flush, all the 5 cards in the hand needs to have the same suit. Now, there are 13 different types of cards with only 5 cards being in the hand, thus

13! / 5! (13 - 5)! =

13! / 5! 8! = 1287

Now, recall that the question specifically asked us not to include any straight. There are 10 straights that can be gotten, and thus, we subtract it.

1287 - 10 = 1277

Since there are 4 suits, the probability of getting a flush is

1277 * 4 / 2598560 =

5108 / 2598560 = 0.001966

5 0

3 years ago

Any and all help would be appreciated!

SpyIntel [72]

The way we can find out the unit rate (also known as the <em><u>SLOPE</u></em>) is by using the table as coordinates!

The slope formula is $\frac{y2 - y1}{x2 -x1}$

With the table, the TIME column can be "x"

The DISTANCE column can be "y"

____________________________

As coordinates, it would look like...

(0,0)

(20, 25)

(30, 37.5) and so on!

_____________________________

All we need to do now is use 2 of these coordinates and plug them into the slope formula in their correct places to find the unit rate!

Example:

solve!

$\frac{37.5 - 25}{30 - 20}$ = 12.5/10 ⇒ 1.25 ( or 5/4 in fraction form)

8 0

2 years ago

A line on a graph shows a proportional relationship between the amount of almonds, x, in grams and the total calories y. Two poi

qaws [65]

C. 5.75 calories per gram

Edit: 287.5÷50=5.75
402.5÷70=5.75

4 0

3 years ago

Read 2 more answers