The dot plots below show the test scores of some mathematics students and some science students: Two dot plots are shown one below the other. The top and the bottom plots have the title Mathematics Students and Science Students respectively. Below the line for each dot plot is written Mark. The markings on each line are from 30 to 50 at intervals of 1. For the top plot there are two dots each for 34 and 40 and 1 dot each for 32, 33, 35, 37, and 39. For the bottom plot there are 2 dots each for 43, 46 and 49 and 1 dot each for 41, 42, and 47. Based on visual inspection of the dot plots, which group of students appears to have the larger average score?

Answers

Answer 1

Answer:

Science students

Step-by-step explanation:

MATHEMATICS :

Plot interval = 30 to 50

MEAN :

(34*2) + (40*2) + (32*1) + (33*1) + (35*1) + (37*1) + (39*1) = 324

Sample size, n = (2 + 2 + 1 + 1 + 1 + 1 + 1) = 9

Mean = 324 / 9 = 36

BOTTOM :

SCIENCE :

MEAN : (43*2)+(46*2)+(49*2)+(41*1)+(42*1)+(47*1) =

406

SAMPLE SIZE = (2 + 2 + 2 + 1 +1 +1) = 9

406 / 9 = 45.111

Answer 2

Sorry im VERY late. The correct answer is  B. The Science students.

Step-by-step explanation: Have a good day!


Related Questions

Help please explanation and thank you!

Answers

Answer:

D

Step-by-step explanation:

A: The sum of Y and H is +. If the scale is correct, this is not true. Y is further away from 0 than H is. Suppose H = 5 and Y = -7. Then Y + H = 5 + -7 = - 2

B: E and Y area both minus. The minus signs cancel. Therefore the answer will be + B is wrong.

C: H>0 and E<0. A negative times a positive is a negative not a positive. C is wrong

D: A - H Suppose A = 2 and H = 5 . Then A - H = 2 - 5 which is - 3

This is your answer.

The reason is that H is further from the 0 than A is.

The base edge of the regular triangular pyramid is b=10 cm and altitude of the base hb ≈ 8.66 cm. The slant height of the pyramid is k=8 cm. Find: a Lateral area of the pyramid

Answers

Answer:

Lateral Area: 120                                                                                    

Surface Area: 163.3

SOMEONE PLEASEEEEW HELP ME OUTTT

Answers

Answer:

By Double splitting method

=> 2x²-7x+5

=> 2x²-2x-5x+5

=>2x(x-1)-5(x-1)

=>(2x-5)(x-1)x=5/2x=1

______________

Hope it helps

-------☆゚.・。゚ƒöᏝϗʆѻʁᶥąռ¹₃

Answer:

Factorise 2x^2-7x+5

Step-by-step explanation:

2x^2-7x+52x^2-2x-5x+52x(x-1)-5(x-1)(2x-5)(x-1) 2x-5 =0 or x-1 =0 2x=5 x=1 x=5/2 Therefore either x =5/2 or x=1

hope it helps

PLEASE HELP
The measures of the angles of a triangle are shown in the figure below. Solve for x.

Answers

The answer should be 63.

Explain what the equation 3x = 6 means without using the word equal. Explain why 2 is a solution of the equation.

Answers

Answer:

See explanation

Step-by-step explanation:

Given

[tex]3x = 6[/tex]

Solving (a): What the expression means

3 when multiplied by x, gives 6

Solving (b): Why 2 is the solution

We have:

[tex]3x = 6[/tex]

Divide both sides by 3

[tex]\frac{3x}{3} = \frac{6}{3}[/tex]

[tex]x = \frac{6}{3}[/tex]

[tex]x = 2[/tex]

Find the sum of the first 32 terms of the arithmetic sequence 24, 20, 16,

Answers

Answer:

[tex]S_{32}[/tex] = - 1216

Step-by-step explanation:

The sum to n terms of an arithmetic sequence is

[tex]S_{n}[/tex] = [tex]\frac{n}{2}[/tex] [ 2a₁ + (n - 1)d ]

where a₁ is the first term and d the common difference

Here a₁ = 24 and d = a₂ - a₁ = 20 - 24 = - 4 , then

[tex]S_{32}[/tex] = [tex]\frac{32}{2}[/tex] [ (2 × 24) + (31 × - 4) ]

     = 16(48 - 124)

     = 16 × - 76

     = - 1216

help me solve this please

Answers

Answer:

2384

Step-by-step explanation:

40x50=2000

40x24/2=384

2000+384=2384

Answer:

2384

Step-by-step explanation:

1. Approach

To solve for the area of the given figure, divide the figure up into two parts. This will ensure that one can find the area of each individual part, and then add the two resulting areas up to find the total area of the figure. One can split this figure into a rectangle, and a triangle.

2.Find the area of the rectangle

The rectangle will have the following dimensions,

(40) x (50)

To find the area of a rectangle, one will use the following formula,

(length) * (width) = (area)

Therefore, the area is the following,

(40) * (50) = 2000

3.Area of the triangle

3a. Approach

To find the area of a triangle, one will use Heron's formula. Herons' formula states the following,

[tex]\sqrt{s(s-a)(s-b)(s-c)}[/tex]

Where (s) is the semi-perimeter or half of the perimeter, and (a), (b), and (c) are the sides of the triangle. This requires that one knows all of the sides of the triangle.

3b. Find the unknown side and semi-perimeter

It is given that the triangle is right indicated by a box around one of the angles), thus one can use the Pythagorean theorem to find the length of the unknown side. The Pythagorean theorem states the following,

[tex]a^2+b^2=c^2[/tex]

Where (a) and (b) represent the legs, the sides adjacent (next to) the right angle. Moreover, (c) represents the hypotenuse or the side opposite the right angle. Substitute in the given values and solve for (b),

[tex](40)^2=(24)^2+(b)^2\\[/tex]

Simplify,

[tex]1600=576+b^2[/tex]

Inverse operations,

[tex]1024=b^2\\\sqrt{1024}=b\\32=b[/tex]

Add up all of the sides of the triangle and divide by (2) to fin the semi-perimeter,

[tex]\frac{a+b+c}{2}\\\\=\frac{20+24+32}{2}\\\\=48[/tex]

3c. Find the area of the triangle

Substitute into Heron's formula,

[tex]\sqrt{s(s-a)(s-b)(s-c)}\\\\=\sqrt{48(48-32)(48-40)(48-24)}\\\\=\sqrt{48(16)(8)(24)}\\\\=\sqrt{147456}\\\\=384[/tex]

Add the area of the rectangle and triangle together to find the answer,

384 + 2000

= 2384

The price of an item has been reduced by 65%. The original price was $25.

Answers

25 • 0.65 = 16.25
25 - 16.25= 8.75
The new price is $8.75

What is the inter-quartile range of the given data set?

3
6
2

Answers

Answer:

IQR = 3

Step-by-step explanation:

That would be 20 - 17, or 3.

The table shows the estimated number of lines of code written by computer programmers per hour when x people are working.
Which model best represents the data?

y = 47(1.191)x
y = 34(1.204)x
y = 26.9x – 1.3
y = 27x – 4

Answers

Answer:

Y=26.9x-1.3is the answer

Step-by-step explanation:

The best model represents y = 26.9x – 1.3

What is equation?

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

As, the data given about productivity is well defined by y = 26.9x – 1.3

As, we have 4 functions so by putting the values we get

x                  A                 B                C               D

2              66.66          49.3            52.5           50

4             94.57            71.44           106.3         104  

6             134.14           103.57         160.1          158

8             190.27          150.14          213.9         212

10           269.91           217.64         267.7         266

12           382.85          315.5           321.5          320.

So, the most accurate is (C)y = 26.9x – 1.3.

Learn more about this concept here:

https://brainly.com/question/4505098

#SPJ2

There are 45 students in a speech contest. Yesterday, 2/3 of them gave their speeches. Today, 4/5 of the remaining students gave their speeches. How many students still haven't given their speeches

Answers

3 students because 2/3 of 45 is 30 then 4/5 of 15 is 12 so 3 students still haven’t gone
45 x 2/3 = 30
45-30 = 15

15 x 4/5 = 12
15-12= 3

3 have not yet given their speeches.


Find the area of the composite figure

Answers

Answer:

370mm

Step-by-step explanation:

15mm×30mm=450mm

8mm×10mm

450mm-80mm =370mm

What is the answer to this question? I can't wrap my head around it because I am a 6th grader but my math teacher is making me do 8th-grade stuff to prepare me for algebra I.

Answers

It’s a function if it passes the vertical line test or pencil test. Using a pencil and following the function if it touches the pencil in more then one spot it is not a function.
1. Function
2. Function but can be placed in not enough information
3. Not a function
4. Function
5. Function
6. Not a function

consider this equation tan(theta)=-5/3

if theta is an angle in quadrant II what is the value of sin(theta)

Answers

Answer:

B     5√34 / 34

Step-by-step explanation:

tan ∅ = opp/adj

In quad II

tan ∅ = 5 / (-3)

---------------------

hyp^2 = 5^2 + (-3)^2

hyp^2 =25 + 9 = 34

hyp = √34

---------------------------

sin ∅ = opp/hyp

sin ∅ = 5/√34

Rationalizing

sin  ∅ = 5√34 / 34

Consider this equation [tex]tan(\theta)=-5/3[/tex]. if theta is an angle in quadrant II the of  [tex]sin \theta = \dfrac{5\sqrt{34}}{{34} }[/tex].

What are the trigonometric ratios?

Trigonometric ratios for a right-angled triangle are from the perspective of a particular non-right angle.

In a right-angled triangle, two such angles are there which are not right-angled(not of 90 degrees).

The slanted side is called the hypotenuse.

From the considered angle, the side opposite to it is called perpendicular, and the remaining side will be called the base.

Consider this equation

[tex]tan(\theta)=-5/3[/tex]

B     5√34 / 34

if theta is an angle in quadrant II what is the of sin(theta)

[tex]tan(\theta) = \dfrac{\text{Length of perpendicular}}{\text{Length of base}}[/tex]

In quadrant II

tan ∅ = 5 / (-3)

[tex]hyp^2 = 5^2 + (-3)^2\\hyp^2 =25 + 9 = 34\\hyp = \sqrt{34}[/tex]

[tex]\sin(\theta) = \dfrac{\text{Length of perpendicular}}{\text{Length of Hypotenuse}}[/tex]

[tex]sin \theta = \dfrac{5}{\sqrt{34} }[/tex]

Rationalizing

[tex]sin \theta = \dfrac{5\sqrt{34}}{{34} }[/tex]

Learn more about trigonometric ratios here:

https://brainly.com/question/22599614

#SPJ2

Find the difference of (2x -3) - (x-1) . *
5 points
x - 4
x - 2
x + 2
x + 4

Answers

Answer:

[tex]\huge\boxed{Answer\hookleftarrow}[/tex]

[tex](2x - 3) - (x - 1) \\ = 2x - 3 - x + 1 \\ = 2x - x - 3 + 1 \\ = x - 2[/tex]

Option B. x - 2 is the correct answer.

The theoretical probability of landing on tails is 1/2. What is the EXPERIMENTAL probability of 'tails' shown below? ***write your answer as a FRACTION with a "/"* Flip 1 2 3 4 5 Result H T T H H Flip 6 7 8 9 10 Result H H T H T Flip 11 12 13 14 15 Result I T T T H Flip 16 17 17 18 19 19 20 Result T H H T H​

Answers

Answer:

The experimental probability of flipping tails is 40%. Mentor: The experimental probabilities were 40% tails and 60% heads. This does not precisely match with the theoretical probability of 50% tails and 50% heads.

Step-by-step explanation:

Round 103,475 to the nearest ten thousands place:

Answers

Answer: 103,000

Step-by-step explanation:

It would be 100,000 rounding 103,475 to the nearest TEN THOUSANDS place.

If you meant to say round to the nearest TEN THOUSANDTHS place then it would be 103,475.0000.

use the quadratic formula x^2-5x+3=0

Answers

Answer:

[tex]x^2 -5x +3 = 0\\\\ x= \frac{-b \pm \sqrt{b^2-4*a*c} }{2a} \\\\b = -5, a = 1 , c = 3\\\\x= \frac{-b + \sqrt{b^2-4*a*c} }{2a} , x= \frac{-b -\sqrt{b^2-4*a*c} }{2a}\\\\x= \frac{5 + \sqrt{25-12} }{2}, x= \frac{5-\sqrt{25-12} }{2}\\\\x= \frac{5+\sqrt{13} }{2}, x= \frac{5- \sqrt{13} }{2}[/tex]

Analyze the graph below to identify the key features of the logarithmic function.

Answers

Answer:

is there just 2 answers too this question? anyways the answer b

heyy! i’ll give brainliest please help.

Answers

Answer:

I think its A? Not sure though

Step-by-step explanation:

Not sure, but It might be B.

1) IF (a, b ond B = (x, y) find BxH,
And show in arrow diagram

Answers

Answer:

Your question seems inaccurate. Sorry,please give the correct question.

In April, it rained 5 inches. In June, it rained 0.25 inch.
How many more inches did it rain in April?

Answers

Answer is 4.75

5 - 0.25 = 4.75

Solve -7g - 2 = - 30. Show your steps.

Answers

Answer:

g = 4

Step-by-step explanation:

-7g - 2 = -30

Add 2 to both sides to get:

-7g -2+2 = -30+2

which is equal to:

-7g = -28

now divide both sides by -7 to get the value of g which is:

g = -28 / - 7

--> g = 4

Answer:

g = 4

Step-by-step explanation:

First you can add 2 to both sides to isolate the x term:

-7g -2 = -30

      +2   +2

-7g = -28

Now, you can divide by -7 both sides to find g,

-7g = -28

÷ -7     ÷ -7

g = 4

SOLVE FOR X PLEASE HELP LEAVE IN FRACTION AND DECIMAL​

Answers

Answer:

[tex]x = \frac{22}{3}[/tex]

Step-by-step explanation:

Since both CB and ED intersect AD perpendicularly, we can say they are parallel and that ΔACB is similar to ΔAED from Thales intercept theorem. Now, we can set up a proportion from the definition of similar triangles:

[tex]\frac{AB}{AD} = \frac{BC}{DE}[/tex]

We can say that AD = AB + BD(segment addition postulate) and substitute to get AD = 11. Now we can plug in the numbers we have to the proportion:

[tex]\frac{6}{11} =\frac{4}{x}[/tex]

We can cross-multiply to get:

[tex]6x = 44[/tex]

and divide by 6 to get

[tex]x = \frac{22}{3}[/tex]

15 points !!! will mark brainiest if you get correct !!!
determine wether each sequence is arithmetic or geometric. find the next three terms.

(question) 14, 19,24, 29, . . .
A: geometric, 34, 39, 44
B: arithmetic, 32, 36, 41
C: arithmetic, 34, 39, 44
D: the sequence is neither geometric nor arithmetic.

(question) -4, 8, -16, 32, . . .
A: arithmetic, 64, 128, 256
B: geometric, -64, 128, -256
C: geometric, -48, 64, -80
D: the sequence is neither geometric nor arithmetic.

(question) 81, 27, 9, 3, . . .
A: arithmetic, 0, -3, -6
B: geometric, 0, -3, -6
C: geometric, 1, 1/3, 1/9
D: the sequence is neither geometric nor arithmetic.

Answers

Step-by-step explanation:

1. C:arithmetic, 34, 39, 44

2. B: geometric, -64, 128, -256

3. C: geometric, 1, 1/3, 1/9

write an equation
(-2,4) and (-1,8)

Answers

Answer:

2(-2,4) + 2(-1,8)=-8.4

Step-by-step explanation:

2x-2

2x4

2x-1

2x8

-8.4


What is the surface area of the solid?

А. 520 square inches

B. 660 square inches

C. 260 square inches

D. 470 square inches

Answers

Answer:

A. 520 square inches is your surface area of the rectangular prism

a 520
a =2 (wl+hl+hw)

expanding triple brackets, i will give brainliest

Answers

Answer:

[tex] {x}^{3} + {x}^{2} −24x+36[/tex]

Step-by-step explanation:

[tex](x + 6)(x - 2)(x - 3)[/tex]

[tex][x(x−2)+6(x−2)](x−3)[/tex]

[tex]( {x}^{2} −2x+6x−12)(x−3)[/tex]

[tex]( {x}^{2} +4x−12)(x−3)[/tex]

[tex] {x}^{3} + {x}^{2} −24x+36[/tex]

Hope it is helpful....

Please help me y’all!!

Answers

Answer:

57

Step-by-step explanation:

Answer:

[tex]57[/tex]

Step-by-step explanation:

This is a plug-and-chug type problem. Substituting given values, we have:

[tex]\frac{3}{4}|-4-2(6^2)|,\\\\\frac{3}{4}|-4-2(36)|,\\\\\frac{3}{4}|-4-72|,\\\\\frac{3}{4}|-76|,\\\\\frac{3}{4}(76)=\boxed{57}[/tex]

WILL GIVE BRAINLIEST! PLS HELP

Answers

I read it all and see your picture it think it’s going to be the 3rd one sir
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