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3 years ago

PLEASE HELP FAST!!! ITS EASY BUT NOT FOR ME!!

Mathematics

2 answers:

Maru [420]3 years ago

8 0

The answer is number 4

kolezko [41]3 years ago

8 0

The equation that is different than the others or the first one

9.1=-0.2x+10

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I Need Some Help!!!!!!!!!

ehidna [41]

Answer:

median = 50

difference in the quartiles = 45

Step-by-step explanation:

The median amount is the line in the middle of the box

The median is 50

The difference between the upper quartile and the lower quartile is the difference between the right end of the box and the left end of the box

65-20 = 45

4 0

3 years ago

Item 1 A bag contains 7 blue cards, 4 green cards, 6 red cards, and 8 yellow cards. You randomly choose a card. a. How many poss

egoroff_w [7]

Answer:

4 possible outcomes

Step-by-step explanation:

we know that

The probability of an event is the ratio of the size of the event space to the size of the sample space.

The size of the sample space is the total number of possible outcomes

The event space is the number of outcomes in the event you are interested in.

Let

x------> size of the event space

y-----> size of the sample space

$P=\frac{x}{y}$

In this problem

The probability of choose a blue card is

$x=7$

$y=7+4+6+8=25$

substitute

$P=\frac{7}{25}$

The probability of choose a green card is

$x=4$

$y=7+4+6+8=25$

substitute

$P=\frac{4}{25}$

The probability of choose a red card is

$x=6$

$y=7+4+6+8=25$

substitute

$P=\frac{6}{25}$

The probability of choose a yellow card is

$x=8$

$y=7+4+6+8=25$

substitute

$P=\frac{8}{25}$

The sum of the probabilities of the 4 possible outcomes is equal to

$\frac{7}{25}+\frac{4}{25}+\frac{6}{25}+\frac{8}{25}=\frac{25}{25}$ ----> represent the 100%

4 0

3 years ago

What is Sinx =125/500

Anastasy [175]

Answer:

14.4775121859299

Step-by-step explanation:

sinx = 125/500

sinx = 1/4

or, x = arcsin(1/4)

5 0

3 years ago

7. Jane is at the amusement park. The admission is $25, and the rides are $2 each. If Jane

Vedmedyk [2.9K]

Answer:

Jane got on 16 rides

Step-by-step explanation:

r= numbers of rides

25 + 2r

25 + 2r = 57

-25 -25

_____________

2r\2 32/2

r=16

6 0

3 years ago

work it out "the equation 1.5r + 15=2.25r represents the number r of movies u must rent to spend the same amount at each movie s

Alex17521 [72]

Answer:

Step-by-step explanation:

Your equation is correct. To solve it subtract 1.5r from both sides and divide by the resulting coefficient of r.

15 = 0.75r

15/0.75 = r = 20

You must rent 20 movies for the costs to be the same.

4 0

3 years ago