Mr. Whitman gave a test to his 32 math students. He felt the results were low, so he retested them one week later. The results of the original and retake test are shown below.
A. What is the difference in the median grade?
B. Compare the percent of students who got at least a 60 on the original test to those that got at least a 60 on the retake.
C. If the students need a 65 in order to pass the test, how many more passed the retake?

Answer:

6.63 ft

Step-by-step explanation:

10² + h² = 12²

h² = 12² - 10²

h² = 144 - 100

h = √(44)

h = 2√11

6.63325 ft

Answer:

t = 14 years

Step-by-step explanation:

r = R/100

r = 9/100

r = 0.09 per year,

Then, solve the equation for t

t = ln(A/P) / n[ln(1 + r/n)]

t = ln(9,589.78/2,733.00) / ( 12 × [ln(1 + 0.09/12)] )

t = ln(9,589.78/2,733.00) / ( 12 × [ln(1 + 0.0075)] )

t = 14 years

Summary:

The time required to get a total amount of $9,589.78 with compoundeded interest on a principal of $2,733.00 at an interest rate of 9% per year and compounded 12 times per year is 14 years.

Answer:

A) 6, 7, 7, 8, 9

Step-by-step explanation:

Median: the middle number in a data set

Mode: the number that appears most frequently in a data set

Choices:

A) 6, 7, 7, 8, 9

B) 2, 2, 3, 4, 6

C) 3, 4, 6, 7, 8

D) 3, 3, 4, 5, 5​

A) 6, 7, 7, 8, 9

Median: 7

Mode: 7

B) 2, 2, 3, 4, 6

Median: 3

Mode: 2

C) 3, 4, 6, 7, 8

Median: 6

Mode: 3, 4, 6, 7, 8 <== as they all appear once

D) 3, 3, 4, 5, 5​

Median: 4

Mode: 3 and 5

Therefore, the correct answer is A, as it has a median and mode of 7.

Hope this helps!

Answer:

D

Step-by-step explanation:

You can combine like terms meaning (8x+14)+ (9x-5) is 17x+9

Hi!

Given:

[tex](8x+14) + (9x-5)[/tex]

As we are adding the two groups, we can safely take them out of parentheses, as none of the signs will change:

[tex]8x+14+9x-5[/tex]

Now, we can rearrange them to make it easier, placing like terms next to each other:

[tex]8x+9x+14-5[/tex]

Now, add like terms:

[tex]17x+9[/tex]

Therefore, your answer is D.

The equation that results if Kiran squares both sides as his first step is gotten as; x + 2 - 10√(x + 2) + 25 = 121

We want to simplify the expression;

[√(x + 2)] - 5 = 11

Squaring both sides is;

([√(x + 2)] - 5) * ([√(x + 2)] - 5) = 11 * 11

⇒ x + 2 - 10√(x + 2) + 25 = 121

Thus, the correct answer is;

x + 2 - 10√(x + 2) + 25 = 121

Read more about Algebra at; https://brainly.com/question/4344214

#SPJ1

Answer:

B. -3/2

Explaination:

Answer:

-------------------Heya Kjowanpreet!--------------

[tex] \large{ \tt{ \star\: S \: O \: L \: U \: T \: I \: O \: N : }}[/tex]

GiveN :

To FinD :

FormulA :

SolvinG :

[tex] \large{ \boxed{ \bf{Area \: of \:right \: angled \: triangle : \frac{1}{2} b \times p }}}[/tex]

[tex] \longrightarrow{ \tt{} \frac{1}{2} \times 3 \times 4}[/tex]

[tex] \longrightarrow{ \boxed{ \tt{6 \: in ^{2} }}}[/tex]

-------------HappY LearninG <3 ---------------

Answer:

$ 2.57

Step-by-step explanation:

1.19 $/pound  * 2.16 pound =

Answer:

false

true

true

sorry i just need more characters

Answer:

six!!! OBVIOUSLY BECUASE everything is made of dogs.

Step-by-step explanation:

lol sorry caps but it was kinda obvious ngl

Your correct answer is 3.

Sure hope this helps you and pls mark me brainiest :)

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B because your not rounding and in this case you need to intermediate the calculations

Answer:

Question 1

The function [tex]f(x) = x + 6[/tex] is one-to-one, so it does have an inverse.

The inverse of +6 is -6, so [tex]f^{-1}(x)=x-6[/tex]

Therefore, g(x) is the inverse of f(x).

Question 2

The function [tex]f(x) = -3x -9[/tex] is one-to-one, so it does have an inverse.

To find the inverse, replace f(x) with y:

[tex]\implies y = -3x -9[/tex]

Rearrange the equation to make x the subject:

[tex]\implies y+9= -3x[/tex]

[tex]\implies x=-\dfrac13(y+9)[/tex]

[tex]\implies x=-\dfrac13y-3[/tex]

Replace x with [tex]f^{-1}(x)[/tex] and y with x:

[tex]\implies f^{-1}(x)=-\dfrac13x-3[/tex]

Therefore, g(x) is the inverse of f(x).

Answer:

SMALLEST TO GREATEST

102 mm --> 125 mm --> 10.4 cm --> 0.12 m.

Explanation:

Millimeters (mm) is smaller than centimeters (cm). Centimeters are smaller than meters (m).

And, since both 125 mm and 102 mm has the same units of measurement, 125>102.

So, 102 goes in front of 125.

And then the rest of the order is completed by comparing the units of measurement.

Answer:

  (a) correct

  (b) -48 ft/s

  (c) -32 ft/s; -64 ft/s

  (d) 9.257 s

  (e) -296.216 ft/s

Step-by-step explanation:

You are given an equation of motion and asked to find velocity and time at different points in the motion. This requires you differentiate the position function to find velocity, and that you solve the position function to find the time at a particular position.

__

The coin is "dropped", so is presumed to have no initial velocity. The initial height is given as 1371 feet. Putting these values into the given equation, you have ...

  s(t) = -16t² +1371

The velocity is the derivative of this function:

  v(t) = -32t

__

The average velocity on an interval is the change in position divided by the change in time:

  (s(2) -s(1))/(2 -1) = ((-16·2² +1371) -(-16·1² +1371))/1 = -16(4 -1) = -48 . . . ft/s

(Note: the average velocity for a quadratic position function is the velocity at the midpoint of the interval: v(1.5) = -32(1.5) = -48 . . . ft/s.)

__

Use the velocity function you found in part (a) to determine the instantaneous velocity at the given times:

  v(1) = -32(1) = -32 . . . ft/s

  v(2) = -32(2) = -64 . . . ft/s

__

The coin will reach the ground when s(t) = 0. Solving for t, we find ...

  s(t) = 0

  -16t² +1371 = 0

  1371 = 16t²

  t = √(1371/16) = (√1371)/4 ≈ 9.257 . . . . seconds

__

The velocity at impact will be ...

  v(√1371/4) = -32(√1371/4) = -8√1371 ≈ -296.216 . . . ft/s

Answer:

1/64

Step-by-step explanation:

1/4*1/4*1/4 since as you tell me there are

2 of each, which is 1/4 I will do the same thing 3 times.

Answer:

  parallelogram

Step-by-step explanation:

A kite will have two pairs of congruent sides. An isosceles trapezoid will have two pairs of congruent angles.

When the congruent angles are opposite and adjacent angles are supplementary, opposite sides must be parallel and congruent. The figure must be a parallelogram.

Answer:

the range of the graph is all real numbers less than or equal to zero

Step-by-step explanation:

Answer:

Option D, 174 ft

Step-by-step explanation:

Step 1:  Create an equation

[tex]B = 6H[/tex]

[tex]Area = (6H) * H[/tex]

Step 2:  Divide both sides by 6

[tex]5040\ ft^2 = 6H^2[/tex]

[tex]\frac{5040\ ft^2}{6} = \frac{6H^2}{6}[/tex]

[tex]840\ ft^2 = H^2[/tex]

Step 3:  Square root both sides

[tex]\sqrt{840\ ft^2} = \sqrt{H^2}[/tex]

[tex]29\ ft = H[/tex]

Step 4:  Find the base

[tex]A = B * H[/tex]

[tex]5040\ ft^2 = B * 29\ ft[/tex]

[tex]\frac{5040\ ft^2}{29\ ft} = \frac{B*29\ ft}{29\ ft}[/tex]

[tex]174\ ft = B[/tex]

Answer:  Option D, 174 ft

Answer:

A) R24.10
B) R25.90

((ASSUMING THERES NO TAXES WITH THE PAYMENT))

Step-by-step explanation:
A)

first add up the costs of each item to get the ttal cost with addition as follows...

9.50 + 0.50 + 2.75 + 11.35 ((Adding like terms by adding 0.50 to 9.50 equaling 10.00))

10.00 + 2.75 + 11.35 ((adding the more simple options togeter since .75 is a more common fraction at 3/4))

12.75 + 11.35 ((finnishing off the system by adding the last two numbers together equaling to 24.10))

therefore Thabo spent a total of 24.10

B)
to find out the change, all we need to do is subtract the total cost from the total amount Thabo used to pay as shown below

50.00 - 24.10

in conclusion, Thabo would have R25.90 in change from the transaction ((assuming theres no tax))

Answer:

3 for City A and 6 for City B.

Step-by-step explanation:

All you have to do is look where it stands bye.

Hope this helps!

Answer:

Step-by-step explanation:

I will give each that is a statistical question

Subject the students in my class like.

Number of students in my class (as you could compare to another class)

height of each student

serving of fruits eaten in that month

Perhaps height (As you could compare it to the average height)

Highest temp. of each month this year.

How many students love football.

Answer:

Statistcial Questions -

Which subjects do the students like

What is the height of each student

What is the highest temperature

of each month this year?

How many students from each

school in this city love football?

Step-by-step explanation:

The zeros of the polynomial are -3, -2, 4 and 6 and the graph of the polynomial is graph (a)

The polynomial is given as:

P(x) = x^4 - 5x^3 - 20x^2 + 60x + 144

Expand the polynomial function

P(x) = x^4 - 10x^3 + 5x^3 + 24x^2 - 50x^2 + 6x^2 + 120x - 60x + 144

Rewrite the function as:

P(x) = x^4 - 10x^3 + 24x^2 + 5x^3 - 50x^2 + 120x + 6x^2 - 60x + 144

Factorize the function

P(x) = x^2(x^2 - 10x + 24) + 5x(x^2 - 10x + 24) + 6(x^2 - 10x + 24)

Factor out x^2 - 10x + 24

P(x) = (x^2 + 5x + 6)(x^2 - 10x + 24)

Expand each bracket

P(x) = (x^2 + 3x + 2x + 6)(x^2 - 4x - 6x + 24)

Factorize each bracket

P(x) = [x(x + 3) + 2(x + 3)][x(x - 6) - 4(x - 6)]

Factor out x + 3 and x - 6

P(x) = (x + 3)(x + 2)(x - 4)(x - 6)

Set to 0

(x + 3)(x + 2)(x - 4)(x - 6) = 0

Solve for x

x =-3, -2, 4 and 6

Hence, the zeros of the polynomial are -3, -2, 4 and 6 and the graph of the polynomial is graph (a)

Read more about polynomials at:

https://brainly.com/question/20896994

Answer:

$347.45

Step-by-step explanation:

total = tickets + parking + t shirt + meal

tickets = 250 + 6% tax

6% tax is of 250, so this is equal to

250 + 6% of 250

6% = 0.06 because we divide by 100 to convert to a decimal from a percentage

thus, tickets = 250 + 0.06 of 250 = 250 * 1 + 0.06 * 250 + 1.06 * 250 = 265

parking = 20

use a similar strategy from the tickets and apply that to the t shirt

t shirt = 35 + 7 % tax = 35 + 0.07 * 35 = 1.07 * 35 = 37.45

meal = 25

total = 265 + 20 + 37.45 + 25 = $347.45

Answer: 0.45 > 0.39

Give love

Answer:

Option A, [tex]L = 243\ ft[/tex]

Step-by-step explanation:

Step 1:  Create an equation

[tex]Length = 4 * Width[/tex]

[tex]Area = (4 * W) * W[/tex]

[tex]Area = 4 W^2[/tex]

Step 2:  Solve for W

[tex]14800\ ft^2 = 4 W^2[/tex]

[tex]\frac{14800\ ft^2}{4} = W^2[/tex]

[tex]3700\ ft^2 = W^2[/tex]

[tex]\sqrt{3700\ ft^2} = \sqrt{W^2}[/tex]

[tex]61\ ft = W[/tex]

Step 3:  Solve for L

[tex]Length = 4 * Width[/tex]

[tex]L = 4 * 61\ ft[/tex]

[tex]L = 243\ ft[/tex]

Answer:  Option A, [tex]L = 243\ ft[/tex]

Answer:

a=-13/157open the brackets:_2/3a+1/3+53a =_4. 53a_2/3a=_4_1/3. 157/3a=_13/3 which is;a=_13/157