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lina2011 [118]
3 years ago
13

Add me on insta clo.Jackson

Mathematics
1 answer:
anyanavicka [17]3 years ago
3 0

Answer:

be careful,

brainly will ban your account

please use brainly if you want to ask a question that you need help on or you can help people

Step-by-step explanation:

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Can someone help me please!
Alex777 [14]

Answer:

4x^2+17x+15

Step-by-step explanation:

(4x-3)(x+5)

= 4x(x+5) -3(x+5)

= 4x^2+ 20x -3x + 15

= 4x^2 + 17x + 15

7 0
3 years ago
A mountain climber ascends a mountain to its peak. The peak is 14,020 ft above sea level. The climber then descends 260 ft to me
Ivahew [28]
The answer to that is 25 so the answer is b
4 0
3 years ago
Find the critical value of t for a sample size of 23 and a 99% confidence level. choose the correct value from below:
Kay [80]
We can find critical value by using t - table.
For using t - table we need degree of freedom and alpha either for two tailed test or one tailed test.
We can determine degree of freedom by subtracting sample size from one.
So in given question sample size is 23. So we can say degree of freedom(df) for sample size 23 is
df = 23 - 1= 22
Now we have to go on row for degree of freedom 22.

After that we need to find alpha either for two tailed test or one tailedl test.
Confidence level is 99%. We can convert it into decimal as 0.99.

So alpha for two tailed test is 100 - 0.99 = 0.01

Alpha for one tailed test is 0.01/2 = 0.005.

So we will go on column for 0.01 for two tailed test alpha or 0.005 for one tailed test alpha.
 SO the critical value 22 degree of freedom and 0.01 two tailed alpha is 2.819 from t - table.

8 0
3 years ago
A science teacher recorded the pulse of each of the students in her classes after the students had
Lyrx [107]

The class which generally had the highest pulse of students recorded by the science teacher after climbing the stairs is class 3.

<h3>What is box plot representation of data?</h3>

Box plot is the way of representation of data which gives the graphical image of the data set to understand better.

The minimum and the maximum values in the box plot is plotted at the end points.

  • A science teacher recorded the pulse of each of the students in her classes after the students had climbed a set of stairs.
  • She displayed the results, by class, using the box plots shown.

In this box plot, the class 3 has the highest value compare to all the box plot.

Thus, the class which generally had the highest pulse of students recorded by the science teacher after climbing the stairs is class 3.

Learn more about the box plot here;

brainly.com/question/14277132

#SPJ1

4 0
2 years ago
The coordinate m is 2.5 and mn=4. What are the possible coordinates for n
steposvetlana [31]
Refer to the figure shown below.

The coordinates of point m are (2,5).
Let (x,y) = the coordinates of pont n.

Because mn = 4, use the Pythagorean theorem to obtain
(x - 2)² + (y - 5)² = 4²

This represents a circle with center at (2,5) and radus = 4.

Answer:
Possible coordinates for n lie on the circle (x-2)² + (y-5)² = 16.

7 0
3 years ago
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