Mathematics High School

Derrick needs to figure out how he’s doing on his test scores so far this year. You can help by calculating the mean and the median to get an overall picture of his scores. Below are all of his scores:

25, 40, 68, 85, 95, 98, 70, 78, 85, 100

Answers

Answer 1

Answer:

Mean = 74.4

Median = 81.5

Step-by-step explanation:

25, 40, 68, 85, 95, 98, 70, 78, 85, 100

Mean = Sum of values / Number of values

Number of values = 10

= 25 + 40 + 68 + 70 + 78 + 85 + 85 + 95 + 98 + 100/10

= 744/10

= 74.4

Median

Rearranging the given data

= 25, 40 ,68 ,70 ,78 ,85 ,85 , 95 ,98 ,100

Formula for median = 1/2(n + 1)th value

n = 10

Hence

1/2(10 + 1)th value

1/2(11)th value

= 5.5 th value

This fall between the 5th and 6th value

5th value = 78

6th value = 85

Hence: 78 + 85/2

= 163 / 2

= 81.5

Related Questions

find the probability. write the fraction in lowest terms. a bag contains five red marbles and five blue marbles. another bag contains five green marbles and four yellow marbles. you randomly pick one marble from each bag. one marble is blue and one marble is yellow.

Answers

Answer: 2/9 chance

Step-by-step explanation:

Bag one: 5 red and 5 blue = 10 total

Bag two: 5 green and 4 yellow = 9 total

Bag one: P(blue)

5/10 or 1/2 chance of picking blue

Bag two: P(yellow)

4/9 chance of picking yellow

Math:

1/2*4/9 = 4/18 or 2/9

Help me on this question please!!

Answers

Answer:

lol get a life

Step-by-step explanation:

What is the surface area, in square centimeters, of the
square pyramid?

Answers

Answer:

Step-by-step explanation:

To find the surface area, we need to find the area of all of the faces of this triangular prism. First, we figure out the area of a triangle which can be found by multiplying 1/2 x base x height ( 1/2 x 4 x 5 ) = 10. Since there are 4 faces that are triangles, we are going to multiply 10 x 4 = 40. Then, we find the area of the bottom which is a square and can be found by multiplying length x width (4 x 4) = 16. Finally, we add 40 + 16 = 56.

6
If the area of a square is 88 units, on which number line does S represents the side length of the
square?
A++
6.8 6.9
7
7.1
7.2 7.3
7.4
7.5 7.6 7.7
S
BK-
8.8
8.9
9
9.1
9.2 9.3
9.4
9.5 9.6
9.7
S
8.8
8.9
9
9.1
9.2 9.3
9.4
9.5 9.6
9.7
S
DA
38 39 40
+
43
+
45
+
47
41
42
44
46

Answers

Answer:

Step-by-step explanation:

Area of a square = s² ; where s = side length

Area of square = 88 unit²

88 = s²

Square root of both sides

√88 = s

9.38 = s

♡♡FIRST TO SOLVE RIGHT GETS BRAINLIEST!!!♡♡
10.7 ft
4.1 ft
6 ft
...please do it right, I really dont want to fail this...
I think u need pathagoream therom
◇◇◇◇SHOW YOUR WORK!!!!◇◇◇◇

Answers

Answer:

162 ft^2.

Step-by-step explanation:

There are 5 triangles in the lateral area.

Lateral area = 5 * 1/2 * 10.8 * 6

= 162 ft^2.

Someone help me on this ASAP

Answers

I think its the third one ig...

probably the first one tbh? the third one sounds right also but if it was wrong then probably the first 1

What is the difference of the median?

Answers

Answer:

Step-by-step explanation:

Please help me with this homework show me how you get it and the answer

Answers

Answer:

25.12 in³

Step-by-step explanation:

v = (1/3)πr²h

Plug in the givens

v = (1/3)(3.14)(4/2)²(6)

v = (1/3)(3.14)(4)(6)

v = 25.12

Answer:

the volume is 25.12. that's the correct answer

Carlos had $41 when he went to a bookstore. He had $10 left after buying some books. Which equation can be used to find a, the amount Carlos spent on books?

Answers

Answer:

$41 - $a =$ 10

Step-by-step explanation:

$41 - $a =$ 10

$a = $ 41 - $10

$a= $ 31

Any answers? My last question. ;-;

Answers

The answer is C or the third one

C. 40.50

90 divided by 20 is 4.5 or 4 1/2.

That means that 1 newspaper is worth 4.5.

If you do 4.5 times 9, you get 40.50.

hello please help i’ll give brainliest

Answers

Atmosphere is the correct answer!

Find the missing parts

Answers

Answer:

a is the same as c b and d/8 are the same so b=8

Step-by-step explanation:

Answer:

you are missing B = 8

Step-by-step explanation:

if this is helpful please like this i need points

(05.06 LC)

Which graph best represents a decreasing function?

A graph shows a non linear curve that joins the ordered pairs 0, 0, and 3, 1.5, and 5, 5.
A graph shows a straight line that joins the ordered pairs 5, 0 and 5, 5.
A graph shows a non linear curve that joins the ordered pairs 0, 5, and 1, 2, and 5, 0.
A graph shows a straight line that joins the ordered pairs 0, 3 and 5, 3.

Answers

A graph shows a non linear curve that joins the ordered pairs 0, 5, and 1, 2, and 5, 0.

it's asking if the statement is true of false :).
1: x+3 and 2x are equivalent when x is 2, true or false
2: 4x and 15+x are equivalent when x is 5. true or false
3:4x and 15+x are equivalent when x is 3 true or false
4: 2b+b and 3b are equivalent for any value of x true or false
please help its for a product grade to bring my grade up

Answers

1) false
2)true
3)false
4)true

Hope this helps :)

NEED HELP the answers are
42 days
30 days
180 days
24 days
365 days
6 days
This is confusing someone please help

Answers

Answer:

6 days

Step-by-step explanation:

The can relatively small... I would just say common sense.

hopefully this helps luv <3

How do I graph y=3tanx?

Answers

Answer:

by graphing it

Step-by-step explanation:

Identify one hormone produced by an endocrine gland and state how it aids in the maintenance of homeostasis.

please help me on this problem

Answers

Answer:

1/64 or 0.015625

Step-by-step explanation:

Find the slope of the line using the slope formula. (2, 10) and ( -1, 4)

Answers

answer:
the slope is 2

step-by-step explanation:
you gave so many points for this thank you
(2, 10) (-1, 4)
(x1, y1) (x2, y2)
m = y2 - y1 / x2 - x1
m = 4 - 10 / -1 - 2
m = -6 / -3
m = 2

whats the angle? (:
not too sure about it

Answers

Answer:

I'm pretty sure it's a right angle.

Step-by-step explanation:

Answer

triangles add up to 180

180-43-90=47

what is a similarity statement, and how do you write one?

Answers

To write a similarity statement, start by identifying and drawing the similar shapes. See where the equal angles are and draw the shapes accordingly. Label all the angles. Write down all the congruent angles.

Answer:

A similarity statement is a statement used in geometry to prove exactly why two shapes have the same shape and are in proportion. You can write one by labeling all the angles. Write down all the congruent angles (for example, angle ABC is congruent to angle DEF, angle BCA is congruent to angle EFD, etc.). Then, calculate all the lengths of the sides of the triangles and confirm that they are in proportion. After that, you are ready to write the similarity statement.

Step-by-step explanation:

A jar contains 8 red marbles, 10 blue marbles, and 2 yellow marbles. One marble is chosen at random. The color is recorded in the table and then it is returned to the jar. This is repeated 40 times. Based on this data, what color marble is likely to be chosen next? Why

Red: 14
Blue: 16
Yellow: 10

Answers

Answer:

blue is more likely to be chosen because there are more of them than the other colors

Step-by-step explanation:

what is the area of a trapezoid if the h=24in b1=42in and b2=36in

Answers

Answer:

936

Step-by-step explanation:

Use substitution method to solve for x and y.

y = -8x -23 ...........(i)
y = 4x + 1 ............(ii)

Answers

Answer:

X=-2, y=-7

Step-by-step explanation:

brainliest goes to whoever answers the question correctly also if you want more points answer my other questions

Answers

Answer:

y = 0.35x + 18.99

Step-by-step explanation:

our y intercept is 18.99 bc thats what we start with at 0 letters

then our b or slope is 0.35 bc thats how much each letter costs. you can find it by subtracting 2 letters from 1 letter ( 19.69 - 19.34 = 0.35)

hope this helps <3

What would the equation look like if you
completely simplified the RIGHT SIDE ONLY?
5 = 4(x – 2) – 7x
A) 5 = 3x – 2
B) 12 = 4(x - 2)
C) 5 = -6x + 8
D) 5 = -3x – 8

Answers

D -3x-8
4x - 8 -7x
-3x - 8

Cada material en sus distintos estados de agregacion, cambia de volumen de forma diferente, sin embargo todos lo hacen en cierta medida. A esta propiedad se le llama

Answers

La respuesta correcta para esta pregunta abierta es la siguiente.

Aunque no se anexaron opciones o incisos para contestar, podemos comentar lo siguiente.

Cada material en sus distintos estados de agregación, cambia de volumen de forma diferente, sin embargo todos lo hacen en cierta medida. A esta propiedad se le llama Estados de Agregación de la Materia.

Las substancias cambian su composición debido a la presión o al cambio de temperatura a la que son sometidos. A ese proceso se le conoce como el estado de agregación de la materia, cuando las moléculas y átomos que constituyen esa matera se ve sometido a una transformación en su composición.

Podemos reconocer comúnmente cuatro estados de transformación de la materia, que son, el estado de plasma, el estado gaseoso, el estado líquido y el estado sólido

can someone plz help me on this ignore the thing on the side

Answers

Answer:

C. 195ft²

Step-by-step explanation:

First find the area of the semi-circle:

A = πr²

The radius is 5 (half the diameter)

Plug in the numbers using 3.14 for pi:

A = 3.14(5)²

A = 78.5

Halve the area so you get the area of half a circle:

78.5/2 = 39.25

Now find the area of a trapezoid:

[tex]A = \frac{a+b}{2} h[/tex]

Plug in the numbers:

A = 10+16/2*12

A = 156

Lastly, add the area of the semi-circle and trapezoid together:

39.25+156 = 195.25ft²

Answer:

Idcccccccccccccc

Step-by-step explanation:

PLS HELP REWARD THE BRAINLEIST AND STARS

Answers

Answer:

D for the first one and D for the second one.

Step-by-step explanation:

Another name for rate of change is slope.

true or false.

Answers

Answer:

True

Step-by-step explanation:

Answer:

True!

Step-by-step explanation:

“Rate of change” means the same as “slope.” If you are asked to find the rate of change, use the slope formula or make a slope triangle.

find area of the figure

Answers

Answer:

70 sq. in

Step-by-step explanation:

Area of the figure

= ( 10 x 5 ) + ( 5 x 4 )

= 50 + 20

= 70

= 70 sq. in

Other Questions

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Derrick needs to figure out how he’s doing on his test scores so far this year. You can help by calculating the mean and the median to get an overall picture of his scores. Below are all of his scores: 25, 40, 68, 85, 95, 98, 70, 78, 85, 100

Answers

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Derrick needs to figure out how he’s doing on his test scores so far this year. You can help by calculating the mean and the median to get an overall picture of his scores. Below are all of his scores:

25, 40, 68, 85, 95, 98, 70, 78, 85, 100