Need some help on this

Need Some Help On This

Answers

Answer 1

9514 1404 393

Answer:

  a. set 1: 29 minutes; set 2: 25 minutes

  b. set 1 is more challenging than set 2

Step-by-step explanation:

a. The mean is found by adding the times and dividing by the number of times. For set 1, that is ...

  (2×27 +2×28 +3×29 +2×30 +33)/10 = 290/10 = 29 . . . minutes

For set 2, that is ...

  (4x24 +4×25 +2×27)/10 = 250/10 = 25 . . . minutes

__

b. The mean of set 1 is higher, and the spread is wider, suggesting more students have more trouble with the problems of set 1. That is, ...

  set 1 is more challenging than set 2


Related Questions

Please help!!!! I need this to pass my classs

Answers

Answer:

a. Maximum

b. (-1, 4)

c. -3, 1

d. x = -1

Step-by-step explanation:

a. There is a maximum value of the function (highest point) because the parabola opens downward.

b. The vertex is the turning point--the point where the maximum is.

c. The roots (or "zeros") are the values of  x  where the curve intersects the x-axis

d. The axis of symmetry is a vertical line which passes through the vertex.

Problem 1
A right isosceles triangle has legs 6 meters long each. Find the length of the
hypotenuse to the nearest tenth of a meter.
Draw a picture
Solve the problem. Show your work!

Answers

Answer:

The hypotenuse measures 8.48 meters.

Step-by-step explanation:

Given that a right isosceles triangle has legs of 6 meters long each, to find the length of the hypotenuse to the nearest tenth of a meter the following calculation must be performed, through the application of the Pythagorean theorem:

6 ^ 2 + 6 ^ 2 = X ^ 2

36 + 36 = X ^ 2

√ 72 = X

8.48 = X

Therefore, the hypotenuse measures 8.48 meters.

p/o/i/t/s/f/r/e/e/;)
denada

Answers

Thanks! Have a good summer

Plz help me I mark you brainlylist and give point

Answers

Answer:

Step-by-step explanation:

part a ) Triangular prism

part b) 6

A math recap workshop is provided to the first year students entering a city college. To evaluate the workshop effectiveness, a study is conducted as following: 20 students with similar math backgrounds are randomly selected for the study. Of the 20 students, 10 of them are selected to attend the workshop and the other 10 do not attend the workshop. After the workshop has taken place a test is given to all 20 students. What is the appropriate inference test to use in this situation

Answers

Answer:

Independent sample t test

Step-by-step explanation:

The Independent sample t test could be explained as a statistical test carried out in other to establish or examine if significant difference exists between two independent samples. That is the outcome of the samples do not depend on one another. Using the scenario described above, the difference between the same variable is measured for two different groups which is the ideal set up for an independent sample t test. The difference between test score for two independent samples (those who attended the workshop and those who did not) is being compared.

An ice-cream shop uses 1/6 box of waffle cones each day they are open. The shop is open 5 days a week. Which equation shows the amount of a box of waffle cones the ice-cream shop uses in a week?

Answers

Answer:

5/6

Step-by-step explanation:

1/6 x 5=5/6

5/6


just like the person above me said!! good job!

Answer nyo po to...Ang hirap(;-;)....pls. Lang po

Answers

The answer goes here,

a) We have to tell the time and day which simone has to tell her sister, for picking her up from airport.

b) We have given the day (monday), time(7:00 pm) and total time to reach the destination(18 hours).

c) No such formula will be used here, we will just use our mental ability to solve this question.

d) She will leave at 7:00 pm, day has 24 hours. So, she will be in the flight on monday:

= 24 - (12 + 7) ----------- [12 here means the time of rest of the day,(morning to noon)]

= 24 - 19

= 5 hours

So, she will complete 5 hours of her destination on monday,now the time left is:

= 18 - 5

= 13

= (12 + 1 )hours

So, on tuesday, she will be in the flight for 12 hours (noon) and then on 1:00 pm she will reach the airport, as she needs and extra hour to plane so, the final time is 1:30 pm. And finally, the time she should tell her sister is 1.30 pm.

What is the growth factor for 233% growth

Answers

Answer:

Here is what you do. Make it into vertex form and then whatever the x factor is is the growth factor

this is adding and subtracting of like and unlike terms
ab+bc=

Answers

Answer:

b(a+c) this is answer okay

Answer:

Step-by-step explanation:

ab+bc

b(a+b)

u can add two term only if they have same base.

10 points! If correct you get brainliest.
Which one's apply?

Answers

Answer:

The answer is C and E

Step-by-step explanation:

Plz help me well mark brainliest if correct!!.....

Answers

12 and 13 have the same amount of students. so B or C will work. please mark brainliest

The vertices of a rectangle in the coordinate plane are located at (4, -3), (4,5), (-5,5), and (-5, -3).

Answers

I’m pretty sure the correct answer is 30 because that’s what you get after counting all units on the outside of the rectangle

WILL GIVE BRAINLIST






MATH




CONVERT EACH MEASUREMENT

25FT TO YARDS

SHOW STEPS ALL HOW YOU GOT THE ANSWER

Answers

Answer:

8.333... Yards.

Step-by-step explanation:

To convert feet to yards, divide the feet by 3.

[tex]\frac{25}{3} = \frac{25}{3}/8.333...[/tex]

To check work

Multiply 8.333... by 3.

8.333 · 3 = 24.999...

It Is Not Exactly 25 Because The 3 Is Infinite But It Is Enough To Prove Your Answer.

320% of 69 is what number?

Answers

Answer:

220.8

Step-by-step explanation:

I believe 220.8

sorry if I am wrong.

Answer:

320×69÷100

answer * number is 220

Find the missing length. The triangles in each pair are similar.

Answers

I think the answer should be 12

this is because CH length is 6 x 5 is 30 so 60/5 is 12 for BH.

Write the Equation of a line given slope and y-intercept or points
1) b = 17/5 and m=3

Answers

Answer:

I'm sorry hindi ko po alam

Jack rolls a fair number cube and spins the spinner. What is the probability that jack will get a number less than 4 and lands on blue?​

Answers

Answer:

7.14%

Step-by-step explanation:

A fair number cube has 6 sides while a normal spinner has 7 different colors. In order to find the probability of Jack getting a number less than 4 and lands on blue, we need to find the probability of each individual event and multiply them together. Since the cube has six sides and 3 options that are less than 4 then the probability of getting less than 4 is 3/6. On the wheel there are 7 colors and only one is blue, therefore, the probability is 1/7. Now we multiply these fractions together.

[tex]\frac{3 * 1}{6 * 7} = \frac{3}{42}[/tex] or 0.0714 or 7.14%

Therefore, the probability of this event happening is 7.14%

The probability of this event is 7.14%.

What is the number of sides in a fair number cube?

A fair number cube has 6 sides.

While a normal spinner has 7 different colors.

In order to find the probability of Jack getting a number less than 4 and lands on blue,

we have to find the probability of each individual event and then multiply them together.

The cube has six sides and 3 options that are less than 4 then the probability of getting less than 4 is 3/6.

On the wheel there are 7 colors and only one is blue.

Therefore, the probabilitiy is 1/7.

Now we multiply these fractions together.

[tex]\frac{3\times 1}{6\times 7} =\frac{3}{42}= 0.0714[/tex]

[tex]\frac{ 0.0714 }{100}=7.14\%[/tex]

Therefore, the probability of this event is 7.14%.

To learn more about the probability visit:

https://brainly.com/question/24756209

The measure of an angle is 32.3°. What is the measure of its complementary angle?

Answers

A complementary angle is 90 degrees .

Answer:

57.8 degrees

Step-by-step explanation:

Complementary angles are angles that add up to 90 degrees so you take 32.3 and figure what plus 32.3 equals 90

Math- bbbbbbbbbbbbbbb

Answers

Answer:

b

Step-by-step explanation:

Answer:

B is the correct answer

Hope this helps!! :D

GIVING OUT BRAINLIEST !!! HELP ME PLSS

Answers

Answer:

Step-by-step explanation:

Quadrilateral ABCD is inscribed. The measure of ∠A=67°. What is the measure of ∠C?

Answers

Answer:

angle C =113 degree

Step-by-step explanation:

angle A + angle C =180 degree

angle C = 180 degree - angle A  

angle C = 180 degree - 67 degree

=113 degree

According to Cavalieri’s Principle, if all of the following have the same height, which pair would NOT have the same volume? Explain why.

Answers

Answer:

Pair 2.

Step-by-step explanation:

For the volumes to be the same the base areas must also be the same.

For Pair 2 the areas are 25π and 24π while the other 2 pairs have both base areas = 25π.

Can anyone help me find the function for this trig graph ? i need a specific answer for the function , not just telling me how to find it . 80 pts

Answers

Answer:

y = 5 sin (2x) + 4

Step-by-step explanation:

this is sines function,

the amplitude is [9 - (-1)]/2 = 10/2 = 5

the period is 2πx/π = 2x

the x-axis of actual function is at y = 4

so, the function is :

y = 5 sin (2x) + 4

Compare using >, <, or =.
11 yards
51 feet

Answers

Answer:

11 yards is 33 feet

11 yards < 51 feet

Plz help me well mark brainliest if correct

Answers

Answer:

C) 86

Step-by-step explanation:

To find the mean you first add all of the numbers together. So you would add 75+90+84+95=344. Then you would divide the sum by the amount if numbers there are. So it would be 344÷4 =86

Hope this helped :)

Answer:

x = 75, 90 , 84, 95

[tex]Mean = \frac{ \sum x}{n}= \frac{75+90+84+95}{4} = 86[/tex]

Solve number 3 please, with explanation

Answers

Answer:

97,655

Step-by-step explanation:

5(5)^(n-1) = 78,125

5^n = 78,125

n = 7

=> S7 = 5(5^7 -1) / (5-1)

= 5/4 (78, 125 -1)

= 5/4 (78 124) = 97,655

The dimensions of a rectanglar sheet of metal are 9.96m by 5.08m
Find
The perimeter of the metal, correct to 1 significant figure

Answers

Answer :

• Length of the metal sheet = 9.96 m

• Breadth of the metal sheet = 5.08 m

As we know that,

★ Perimeter of rectangle = 2(length + breadth)

→ Perimeter of sheet = 2(9.96 + 5.08) m

→ Perimeter of sheet = 2(15.04) m

Perimeter of sheet = 30.08 m

Therefore, perimeter of the rectangular sheet is 30.08 m.

four plus negative two divided by negative three plus three

Answers

Answer:

23/3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Step-by-step explanation:

Step 1: Define

Identify and set up

4 + -2 ÷ -3 + 3

Step 2: Evaluate

Divide:                                                                                                               4 + 2/3 + 3Add:                                                                                                                   14/3 + 3                                                                                                              23/3

Divide the following complex numbers:
(4-i)/(3+4i)
A.-8/7 + 19/7i
B. 16/25 - 19/25i
C. 8/25 - 19/25i
D. -16/7 + 19/7i

Answers

Answer:

C. 8/25 - 19/25i

Step-by-step explanation:

Given that:

[tex]\dfrac{4-i}{3+4i}[/tex]

[tex]= \dfrac{(4-i) (3-4i)}{(3+4i)(3-4i)}[/tex]

[tex]= \dfrac{(4-i) (3-4i)}{(3+4i)(3-4i)} \\ \\ =\dfrac{12 -16i -3i+4i^2}{9 - 12i +12i -16i^2} \\ \\ = \dfrac{12-19i+4i^2}{9-16i^2} \\ \\ = \dfrac{8-19i}{25}[/tex]

[tex]=\dfrac{8}{25}- \dfrac{19i}{25}[/tex]

I need this answer quick and try get it correct
Calculate 38% of 40

Answers

Answer:

15.2

Step-by-step explanation:

Answer:

the answer is 15.2

Step-by-step explanation:

you j multiple them

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