A teacher surveyed her class after they had taken a vocabulary test. Eighteen of the students claimed they had studied
at least one hour for the test. The remaining twelve students admitted that they had not studied for the test at all. The
test results (expressed as a percent) for the two groups are shown below.
Studled: 88, 100, 94, 79, 92, 100, 95, 83, 89, 99, 100, 91, 89, 95, 100, 93, 96, 84
Did Not Study: 82, 72, 45, 91, 58, 83, 65, 87, 90, 77, 73, 89
Which of the following statements are true?
There is no mode of the group that studied.
In general, those students that studied scored much higher than those students that did not study.
The mean of the group that studied is over 15 percentage points higher than the mean of the group that did not study.
The median of the group that studied is over 95.
The median of the group that did not study is less than 80

Answers

Answer 1

Answer:

The median of the group that did not study is less than 80

Step-by-step explanation:

The median of the group that did not study is 79.5


Related Questions

what is the inverse of f(x)=2-2x

Answers

In the usual sense, it has no inverse function. Since it is not an injection (f(0)=f(2)=0), an inverse function would have to map 0 both to 0 and 2, and that’s impossible.

However, if you restrict the domain to [1,+oo> (to make it injective), and the codomain to [-1,+oo> (to make it surjective), then it has an inverse function, given by g(y)=1+sqrt(y+1).

if f(x) = x2+x, find f(- 3)

=
0-12
03
6​

Answers

Answer:

-24

Step-by-step explanation:

I’ll give u brainiest pls help me im so lost

Answers

Answer:

(f o g)(4)=27

Step-by-step explanation:

(f o g)(4)=2x+5

f(g(4))=2x+5

f(4²-2(4)+3)=2x+5

f(16-8+3)=2x+5

f(8+3)=2x+5

f(11)=2x+5

f(11)=2(11)+5

f(11)=22+5

f(11)=27

Therefore, (f o g)(4)=27

What is an equation of the line formed when the line y = 2x + 4 is reflected over the line y = x?

Answers

Answer:

its b

Step-by-step explanation:

Sombody pls help me:(

Answers

1: 8:1

2: 2/4:3/4

3: 1:2

4: 32/4:3/4

which of the following represents a function of protein within a organism ?


A.storing genetic information
B.storing energy
C.generating heat
D.fighting infection​

Answers

Answer:

A

Step-by-step explanation: ITS RIGHTTTTTTTTTTTTTTTTT

Point VV is located at (-5,3)(−5,3) on the coordinate plane. Point VV is reflected over the yy-axis to create point V'V ′ . Point V'V ′ is then reflected over the xx-axis to create point V''V ′′ . What ordered pair describes the location of V''?V ′′ ?

Answers

Given:

Point V is located at (-5,3) on the coordinate plane.

It is reflected over the y-axis to create point V'.

Point V' is then reflected over the x-axis to create point V''.

To find:

The location of point V''.

Solution:

We have,

Point V= (-5,3)

If point V reflected over the y-axis, then

[tex](x,y)\to (-x,y)[/tex]

[tex]V(-5,3)\to V'(5,3)[/tex]

If point V' reflected over the x-axis, then

[tex](x,y)\to (x,-y)[/tex]

[tex]V'(5,3)\to V''(5,-3)[/tex]

Therefore, the ordered pair (5,-3) describes the location of V''.

Answer:

5,3

Step-by-step explanation:

Point VV is located at (-4,6)(−4,6) on the coordinate plane. Point VV is reflected over the xx-axis to create point V'V

. What ordered pair describes the location of V'?V

?

what's 4/6 in decimal form

Answers

0.66666667 is the answer

What is 'twelve and forty-eight thousandths” in
decimal form?

Answers

Answer:

0.1248

Step-by-step explanation:

I think this is right

hope this helps :)

what is the solution to 2x+10=28​

Answers

Answer:

x=9

Step-by-step explanation:

2x + 10 =28 <---- subtract by 10

2x = 18          < divide by 2

x = 9

Mr. And Mrs. Jenkins wanted to make a down payment of $25,000 on a house. If the house costs $125,000, what percent is this?

Answers

Answer:

20%

Step-by-step explanation:

Mr. And Mrs. Jenkins wanted to make a down payment of $25,000 on a house. If the house costs $125,000, what percent is this?

The Percentage of the down payment is given as:

Down payment/Cost of the house × 100

Down payment = $25,000

Cost of the house = $125,000

$25,000/$125,000 × 100

= 20%

The percentage is 20%


What is the measure of 1?
A. 15
B. 35
С. 37
D. 79

Answers

Answer:

Step-by-step explanation:

Answer:

15

Step-by-step explanation:

I am not sure about it, but maybe 15.

<1 = (2x + 5) and <2 = (3x - 10)

<1 = (2 × 15 + 5 ) and <2 = (3 × 15 - 10)

<1 = (30 + 5) and <2 = (45 - 10)

<1 = 35 and <2 = 35

Hope this helps, thank you !!

please help me out and ill give brainliest

Answers

The position of A is located at : -3.75 explanation:
We know this because half of -3 and -4 it would be 50 but this is more than half way so if you count 25 cents more on a quarter it would be 75cents

What is the value of s?
units

Answers

Answer:

s = 17 units

Step-by-step explanation:

In triangle ABD,

(AB)² + (BD)² = (AD)² (by Pythagoras Theorem)

=> 8² + 15² = s²

=> 64 + 225 = s²

=> s = [tex]\sqrt{289}[/tex]

=> s = 17 units

Hope it helps :)

Please mark my answer as the brainliest

2x+1 cual es su respuesta ??

Answers

Answer:??

Step-by-step explanation:

¿A qué es igual la ecuación? x no se puede resolver sin un signo igual al final. por favor responda para que pueda ayudar! :D

Answer:

x= -1/2

Step-by-step explanation:

2x+1=0

-1 -1

2x= -1

➗ por 2

x= -1/2

I WILL GIVE BRIANLIEST!!!!!!!!

Please, I really need to get these right because I’m redoing it for full credit and I have an F in math, help me with as many as you can but don’t guess because I really need this. Even if you see other people’s answers, please give me your feedback still.

Answers

Answer: This might be a little too late but I believe the answer is 2; distance increases by 2 miles per hour. I hope you have a great day and good luck!

Use the Distributive Property to complete the equivalent expression. 4(y-3)=___-___? Please answer quickly!!!

Answers

Answer:

4y-12

Step-by-step explanation:

ok in distributive propertie you multiply the number or term on the outside of the parenthesis with the terms in the inside in other words. 4 ×y and 4× 12

Answer:

4y-12

Step-by-step explanation:

I did something just like this

Plz answer fast I need it done soon

Answers

Answer:

The correct answer is B

Step-by-step explanation:

.

Q1 - Understanding simultaneous equations
Solve these simultaneous equations.
4 pillows and 5 quilts cost $57
9 pillows and 5 quilts cost $72
Find the cost of one of each.
4p + 59 = 57
9p + 59 = 72
P =
and q =
3 apple pies and 5 banoffee cost $28
3 apple pies and 7 banoffee cost $38
Find the cost of one of each.
3a + 5b = 28
3a + 2b = 38
a =
C
and b =
6 mugs and 3 plates cost $21
3 mugs and 3 plates cost $15
Write down and solve simultaneous
equations (m is the cost of a mug and
p is the cost of a plate, in $).
cal
m =
and p =
[
0

Answers

p and q are the numbers of pillows and quilts, respectively.
4p+5q = 57
9p+5q = 72

Subtract the second equation from the first equation.

4p+5q = 57
-9p-5q = -72
——————
-5p = -15

p = 3

4(3)+5q = 57
5q = 57-12 = 45
q = 9

A pillow costs $3. A quilt costs $9.

for the pairs below put each question in slope intercept form and whether the graphs of the line will be identical, parallel, or intersecting, Also determine how many solutions the system of equations will have​

Answers

3: rearrange the 2nd equation so y is isolated, add 3x to both sides
Both equations are now y = 3x + 2. So they are identical, and therefore have infinite solutions since solution means how many times do these lines meet/overlap.

4: rewrite left-right and the equations are now:
y = -x
y = -x -2
Same slope but different intercept (b value), so they are parallel and NEVER meet (NO SOLUTIONS)

5. Rearrange:
y = -x + 4
y = x + 4

So they have different SLOPES in this example (m value). This means they are not parallel or identical, so they can only cross once (one solution)

6: rearrange both
y = 3x - 1
y = 3x + 1
Same slope (m=3), different intercepts (b= 1 and -1). Same slope means parallel, different b means different intercepts so they are NOT identical. Since parallel lines can not cross, there are no solutions

7: y = 2x + 4
y = 2x - 4
Same slope (m=2), different b values (y-intercepts are 4 and -4), so parallel but not identical, no solution

Someone help and makes sure the answer is right please :)

Answers

Answer:

x=6

Step-by-step explanation:

Since the two lines  are  parallel, the angles are congruent to each other.

-4+14x=80

14x=84

x=6

Hope  this helps!

Answer:

6

Step-by-step explanation:

-4+14x=80

14x=84

x=6

Hopefully, it helps and it's correct!

If Earth's total mass is 6 x 10^24 kg, what proportion of this is lost every year?

Answers

Step-by-step explanation:

This is well within the mass uncertainty of 0.01% (6×1020 kg), so the estimated value of Earth's mass is unaffected by this factor. Mass loss is due to atmospheric escape of gases. About 95,000 tons of hydrogen per year (3 kg/s) and 1,600 tons of helium per year are lost through atmospheric escape.

please help me with this slope problem! :) (brainliest)

Answers

Answer:

Plot these points

(1,935)

(2,870)

(3,805)

(4,740)

(5,675)

Slope= -65

y intercept = 1000

and what it's saying is that we travel at a speed of 65 units an hour and we start 1000 miles away

Step-by-step explanation:

Just graph these points which you can get by plugging in the numbers

1000-65= 935

(1,935)

1000-65*2=870

(2,870)

1000-65*3= 805

(3,805)

1000-65*4=740

(4,740)

1000-65*5= 675

(5,675)

B:

y= mx+b where m is the slope and B is the y intercept

we can re write the equation as follows

-65x+1000

It's pretty clear that -65 is the slope and 1000 is the y intercept

Fiona is typing an essay on her computer. She types 5/8 of a page in 1/2 hour. At this rate, how many pages can Fiona type in 1 hour? Enter the answer as an improper fraction (fraction greater than one).

Answers

Answer:

5/4 page

Step-by-step explanation:

5/8 * 2 = 10/8 = 5/4

Oliver buys 4 pineapples. Each pineapple is
$2 off the original price. He pays $4. What is
the original price of a pineapple?

Answers

Answer:

hello

Step-by-step explanation:

The original price i 1 dollar

The LSA of square based pyramid with equal edges is 144 square root 3. Find the area of base ?

Answers

a2=LSA/3–√=144

a a a a a a a a a a a a a

Two triangular pyramids have slant heights of 8 inches and 11 inches. What is the ratio of the surface area of the small pyramid to the surface area of the large pyramid?
Group of answer choices

Answers

Answer:8:11

Step-by-step explanation:if it’s a ratio it would be 8 to 11 but for the to it would be a ratio operation and equals :

You may use a calculator for this item.
To be a member at Salls gym, there is a one-time sign-up fee plus a monthly fee for each month of membership. The
table shows the total cost to be a member of the gym for different numbers of months.
Number of Months
3
Total Cost
$53.97
$77.94
$125.88
6
12
Create a function that gives the total cost, C. in dollars, to be a member of the gym given the number of months, m, of
membership
Enter your function in the space provided.
+
х
-
. 18
1
=
%
+ B
get rr

Answers

Answer:77.94

Step-by-step explanation:

whoever answers correctly gets brainliest.

Answers

5 × 1.4³
=
5× 2.744

= 13.72 cubic units

Answer:

The answer is 13.72 because 1.4^3=2.744 and 2.744*5=13.72

Given the side length, determine whether the triangle is acute, right, obtuse or not a triangle.

10, 23, 41



A. Acute
B. Right
C. Obtuse
D. Not a triangle

Answers

Since 41 is greater than the sum of the other two sides this is not a triangle.

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