Approximate the real zeros of f(x)=x2+3x+1 to the nearest tenth.

Helppp please and tyyyy

DanielleElmas [232]

Answer:

I am pretty sure its B but i dont know for sure

Step-by-step explanation:

3 0

2 years ago

Emily spent $15 on a magazine and four

LiRa [457]

Answer:

Step-by-step explanation:

$15 a magazine.

To calculate how much each candy bar was, you must do $15-$3 = $12

In total, she spent $12 on candy bars. Therefore you must do $12/4 candy bars= $3 a candy bar.

Hope this helps

5 0

2 years ago

Which of the box plots A,B Or C show a sample that has

Paul [167]

The answer is C
This is a box plot diagram also know as a box and whisker plot as you probably see where it gets its name from, to find which diagram is correct you need to look for the following things. First we need to see if the median which in this case is 12 is in on the correct place which in C it is nicely lines up to 12 in the center of the diagram. The median for a the line in the line in the middle of the box plot.
Now we need to have a look at our lower quartile and see that it does start at 6 and the upper quartile does end at 16 these are the lines that make the rectangle shape in the centre lucky for us in C they do. Then we need to see if the lines that run horizontally through the box ( may also be called the whiskers) start at the minimum 3 and end at the maximum of 22 which they do so in the end gives C is true only diagram with all of these in.
Hope this helps !

8 0

2 years ago

Here are the temperatures of a glass of warm water after it's put in a freezer please help

zavuch27 [327]

Answer:

C(t)= 80 · (0.9)^t

Step-by-step explanation: Its the correct one on khan academy

7 0

2 years ago

In the game of Pick-A-Ball without replacement, there are 10 colored balls: 5 red, 2 white, and 3 blue. The balls have been plac

Nataly_w [17]

This question is incomplete, the complete question is;

In the game of Pick-A-Ball without replacement, there are 10 colored balls: 5 red, 2 white, and 3 blue. The balls have been placed into a small bucket, and the bucket has been shaken thoroughly. You will be asked to reach into the bucket without looking and select 2 balls. Because the bucket has been shaken thoroughly, you can assume that each individual ball is selected at random with equal likelihood of being chosen.

Now, close your eyes! Reach into the bucket, and pick a ball. (Click the red Pick-A-Ball! icon to simulate reaching into the bucket and drawing your ball.)

a) What is the probability of selecting the color of ball that you just selected? (Round your answer to four decimal places.)

Don't put your first ball back into the bucket. Now reach in ( again no peeking ), and pick your second ball. ( Click the red Pick-A-Ball icon to simulate reaching into the bucket and select your next ball.)

b) What is the probability of selecting the color of the ball you selected. ( Enter the answer in decimal format to 4 decimal places ).

Answer:

a) the probability of selecting the color of ball ( RED ) that you just selected is 0.5000

b) the probability of selecting the color of the ball ( BLUE ) I selected is 0.3333

Step-by-step explanation:

Given that;

We have a total of 10 colored balls in a small bucket.

Number of Red balls = 5

Number of White balls = 2

Number of blue balls = 3.

Now, assuming I clicked on the red Pick-A-Ball icon to simulate reaching into the bucket and picking a ball.

Also, Assuming that the color of ball that appeared is Red.

Then the probability of selecting the color of ball ( RED ) that I just selected will be;

P( selected Color ) = Number of Red balls / Total number of balls in the bucket

P( selected Color ) = 5 / 10 = 0.5000

Therefore, the probability of selecting the color of ball ( RED ) that I selected is 0.5000

b)

It is said that the game is Pick-A-Ball without replacement.

So assuming I went on and clicked on the red Pick-A-Ball icon to simulate picking a second ball.

Also, Assuming that the color of ball that appeared was blue.

Then the probability of selecting the color of ball ( BLUE ) that I just selected will be;

P( selected Color ) = Number of Blue balls / Total number of balls in the bucket

Now, since I picked the first ball without replacement, i.e I did not return it back to the bucket, The total number of balls left in the bucket now is 9.

so; P( selected Color ) = 3 / 9 = 0.3333

Therefore, the probability of selecting the color of the ball ( BLUE ) I selected is 0.3333

3 0

3 years ago