Math challenging and now math challenging me to challenge math

Answers

Answer 1

Answer:

$30

Step-by-step explanation:

Total amount paid by the hire purchase scheme:

$60 + 6 * $45 = $60 + $270 = $330

Total amount paid in just the cash price:

$300

Difference:

$330 - $300 = $30


Related Questions

find the unique permutations of the letters of the word : CEASELESS

Answers

Answer:

There are 2,520 unique permutations.

Step-by-step explanation:

When we have a set of N different elements, the total number of permutations is given by:

P = N! = N*(N - 1)*(N - 2)*...*(2)*(1)

Particularly, if out of these N elements, there are a given element that is repeated K times, then the permutations of these K elements actually do not add new unique permutations, then in that case the total number of unique permutations is:

P = N!/K!

And if we have another element that is repeated L times, then with the same reasoning than above, the total number of unique permutations is:

P = N!/(K!*L!)

Now, we have the set:

{C, E, A, S, E, L, E, S, S}

So we have a set of 9 letters, then:

N = 9

And, the letter S is repeated 3 times

The letter E is repeated 3 times

Then, using the above notation, we can define:

K = 3

L = 3

The total number of permutations is then:

[tex]P = \frac{9!}{3!*3!} = \frac{9*8*7*6*5*4*3*2*1}{3*2*1*3*2*1} = \frac{9*8*7*6*5*4}{3*2*1} = 2,520[/tex]

So there are 2,520 unique permutations.

Find value of x
A.)46
B.)80
C.)15
D.) 26

Answers

The two angles are supplementary angles, which when added together equal 180 degrees.

6x -10 + 6x +10 = 180

Combine like terms:

12x = 180

Divide both sides by 12:

x = 180/12

x = 15

The answer is C) 15

Kelsey starts downloading a file. After 44 seconds, her computer says "40% of the file has downloaded."


How many seconds will it take in all to download the file at this rate?

Answers

110 seconds is answer

Find the area of a triangle ABC when c=15m, a=20 m, and b=10 m (this problem is an area of triangles using trig)

Answers

Answer:

72.6

Step-by-step explanation:

1.


Which inequality statement best represents the graph?


A. f(x) ≥ –x2 – x – 1


B. f(x) ≤ –x2 – x – 1


C. f(x) ≥ x2 – x – 1


D. f(x) ≤ x2 – x – 1

Answers

Answer:

f(x) ≤ x2 – x – 1

Step-by-step explanation:

Answer:

The graph will have opposite x-intercepts of b and –b and be symmetrical about the y-axis. The graph will have a y-intercept at –b2.

Step-by-step explanation:

i don't have the step by step explanation but that answer is also right

the x intercepts are b and b

the graph has opposite x intercepts

the graph is symetrical  over the y axis

the y intercept is at b²

Answer:

f(x) ≤ x2 – x – 1

How many travelled by car in December and April?
here are the numbers 103 for December and April 87

Answers

190 people have traveled by car in December and April

Answer:

190 by car

Step-by-step explanation:

Suppose you want to save $1000 for a down payment on your first car purchase. You have $750 right now. You invest it in an account that pays %5 annually. How many years will it take until you have enough for your down payment.

Answers

Answer:

6 years

Step-by-step explanation:

750+5%=787.5  (repeat add 5% to the sum of the previous till you reach 1000)

!!!REMEMBER TO GIVE BRAINLIEST IF THIS HELPED!!!

Evaluate the integral.

Answers

Answer:

8/ln(9)

Step-by-step explanation:

Let u=cos(x). Then du=-sin(x) dx.

If x=0, then u=cos(0)=1.

If x=pi/2, then ucos(pi/2)=0.

The intgral is rewriten as

Integrate((9^u (-du) , from u=1 to u=0)

-9^u/ln(9) |u=1..0)

Upperlimit goes in first no matter if it is tinier in value:

(-9^0/ln(9)--9^1/ln(9))

-1/ln(9)+9/ln(9)

8/ln(9)

Classify the following triangle. Check all that apply.
A. Isosceles
B. Equilateral
C. Obtuse
D.Right
E Scalene
F. Acute

Answers

Answer:

I will list main feature for each property and you can choose. You can comment if you want to check or have questions

Step-by-step explanation:

Isosceles - two sides are equal

Equilateral - all sides are equal

Obtuse - one angle is greater than 90 degrees

Right - one angle is equal to 90 degrees

Scalene - none of the sides is equal

Acute - all angles are less than 90 degrees

Go down the list and see if it's true or false about the given triangle

Need help asap NO LINKS!!!
Mark as brainllest who ever gets it right

Answers

Answer:

73384 kilotons

Step-by-step explanation:

=> Total amount the 1st year = 90,000

=> Since after the 1st yr, there was a reduction of 4%, so 100% - 4% = 96% or 0.96

=> Total time = 6

We know that the formula of a geometric sequence is;

aₙ = a₁ * r⁽ⁿ⁻¹⁾

In which;

aₙ = the value that has to be figured out (in this case it would be a₆)a₁ = the first term of the sequence (in this case it would be 90,000)r = common ration (in this case it would be 0.96)n = given time (in this case it would be 6)

Therefore we can finally say;

=> aₙ = a₁ * r⁽ⁿ⁻¹⁾

=> a₆ = 90,000 * 0.96⁶⁻¹

=> a₆ = 90,000 * 0.96⁵

=> a₆ = 73383.54

=> a₆ = 73384 (Rounded to the nearest whole number)

Therefore, rounding the answer to the nearest whole number, the answer would be; 73384 kilotons

Hope this helps! (Btw big shout out to jcherry99 for helping me figure this out!!)

Given y = 3x + 1 State the quadrants in which this graph is in. (Use the numbers 1-4)

Answers

The graph of y = 3x + 1 lies in quadrants I and III. The graph of the equation y = 3x + 1 is a straight line with a positive slope.

To determine the quadrants in which the graph lies, we need to analyze the signs of the x and y coordinates in different regions of the coordinate plane.

Quadrant I: In this quadrant, both the x and y coordinates are positive. When we substitute positive values for x into the equation, we obtain positive values for y. Since the slope is positive, the line rises as we move from left to right. Therefore, the graph lies in quadrant I, where both x and y are positive.

Quadrant III: In this quadrant, the x coordinate is negative, while the y coordinate is positive. If we substitute negative values for x into the equation, we still obtain positive values for y. The positive slope ensures that the line rises from right to left. Hence, the graph also lies in quadrant III.

The graph does not pass through quadrants II and IV because the signs of the coordinates do not align with the equation. In quadrant II, the x coordinate is negative, but the y coordinate is negative as well. In quadrant IV, both the x and y coordinates are positive, which contradicts the equation. Therefore, the graph of y = 3x + 1 is confined to quadrants I and III.

For more questions on quadrants

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DO IT ASAP! Thank you very much!

Answers

Answer:

a = 5

Step-by-step explanation:

According to the factor theorem, if x + 2 is a factor, then by dividing the polynomial by the binomial, we are meant not to have a remainder

In this case, the remainder would be zero

So, if we set the binomial equals zero and substitute the x-value into the polynomial, we are supposed to have 0

So we have this as;

x + 2 = 0

x = -2

-2^3 -2(-2)^2 -2(a) + 6 = 0

-8-8-2a + 6 = 0

-16 + 2a + 6 = 0

2a -10 = 0

2a = 10

a = 10/2

a = 5

Una figura con 2346 cubos pertenece ala sucesión?

Answers

Answer:

Respuesta. a la sucesión porque no cumple con la regla general.

Step-by-step explanation:

You have 90 degree triangle and the adjacent is 24, the opposite is 32, and the hypotenuse is 40. What is the value of tan W rounded to the nearest hundredth, if necessary.

Answers

Answer:

sorry need points Step-by-step explanation:

sorry need points sorry need points

A swimming pool has a diameter of 24 feet. What is the minimum amount of fabric needed to cover the pool if the cover must hang off by 1 foot all around the pool?

Answers

Answer:

531.167 ft²

Step-by-step explanation:

Given data

Dimension of pool

Diameter =24ft

Radius =12ft

If the cover must hang by 1ft around, then the diameter is 26ft

Radius =13ft

Area of cover = πr²

Substitute

Area = 3.142*13²

Area =3.143*169

Area =531.167 ft²

Hence the minimum area is 531.167 ft²

Aaron is 5 years younger than Ron. Four years later, Ron will be twice as old as Aaron.
Find their present ages.

Answers

Answer:

Aaron’s present age = x - 5 = 6 - 5 = 1

Step-by-step explanation:

Let Ron’s present age be x.  

Then Aaron’s present age = x - 5

After 4 years Ron’s age = x + 4, Aaron’s age x - 5 + 4.  

According to the question;  

Ron will be twice as old as Aaron.  

Therefore, x + 4 = 2(x - 5 + 4)  

⇒ x + 4 = 2(x - 1)  

⇒ x + 4 = 2x - 2

⇒ x + 4 = 2x - 2

⇒ x - 2x = -2 - 4

⇒ -x = -6

⇒ x = 6

Therefore, Aaron’s present age = x - 5 = 6 - 5 = 1

Hope this answer helps you :)

Have a great day

Mark brainliest

A.)90
B.)41
C.)15
D.)83

Answers

Answer:

D

Step-by-step explanation:

∠ABC= ∠DBE (vert. opp. ∠s)

(6x -7)°= (4x +23)°

6x -7= 4x +23

Being x terms to 1 side, constant to the other:

6x -4x= 23 +7

Simplify:

2x= 30

Divide both sides by 2:

x= 15

Substituting the value of x:

m∠ABC

= 6(15) -7

= 83

What is the value of X

Answers

Answer:

x = 30

Step-by-step explanation:

The two angles add to a right angle which is 90 degrees

30 +2x = 90

Subtract 30 from each side

30 +2x - 30 =90-30

2x= 60

Divide each side by 2

2x/2 = 60/2

x = 30

:p hello . . . .. . . . . . . . . . . .. . .

How many four-letter permutations can be formed from the first five letters of the alphabet?

Answers

Answer:

120

Step-by-step explanation:

formula:

[tex]\frac{n!}{(n-h)!}=\frac{5!}{(5-4)!}=120[/tex]

Which postulate proves these triangles are similar? (giving brainliest and thanks to all!)

Answers

It’s SAS. Hope I helped sorry if I got it wrong

What is an equation of the line that passes through the points
(
0
,

4
)
(0,−4) and
(

4
,
6
)
(−4,6)?

Answers

Answer:

[tex]y=-\frac{5}{2}x-4[/tex]

Step-by-step explanation:

[tex]slope=\frac{6-(-4)}{-4-0}=\frac{10}{-4}=-\frac{5}{2}[/tex]

[tex]y-6=-\frac{5}{2}[x-(-4)] \\\\y-6=-\frac{5}{2} (x+4)\\\\y-6=-\frac{5}{2}x -10\\\\y=-\frac{5}{2}x-4[/tex]

Maria hikes to the top of a 10,000 foot tall mountain (way to go Maria!). She looks down from
the top of the mountain and sees a tennis court. Her angle of depression is 20°. How far away
is she from the tennis court? Hint: I'm not looking for the horizontal distance. Round to the
nearest tenth.

Answers

Maria distance from the tennis courteous 5 miles

What is the sum of the measures of the interior angles of this heptagon?
A) 720°
B) 900°
C) 1,080°
D) 1,260°

Answers

the answer would be D

The sum of the measures of the interior angles of the given heptagon is 900°, Option B is correct

What is Polygon?

a polygon is a plane figure made up of line segments connected to form a closed polygonal chain.

The sum of the measures of the interior angles of a heptagon can be found using the formula:

S = (n - 2) × 180°

where S is the sum of the measures of the interior angles and n is the number of sides (or vertices) of the polygon.

For a heptagon, n = 7, so we have:

S = (7 - 2) × 180°

S = 5 × 180°

S = 900°

Therefore, the sum of the measures of the interior angles of the given heptagon is 900°, which is answer choice B.

To learn more on Polygon click:

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Jake buys an oven and discovers that its temperature can vary out to 2.5 Fahrenheit from his settings. If Jake set the temperature to 345 Fahrenheit to bake a cake, from an inequality to represent the possible temperatures of the oven, tea, and degrees Fahrenheit. Then determine the range of possible temperatures when the oven is set at 345 Fahrenheit. Select a correct any quality and range on the table

Answers

Answer:

Answer in the image

(First correct will get brainiest) Find AC

Answers

Answer:

thie dissrespect man or woman

Step-by-step explanation:

add 13 + 26 = 39

Find the mean absolute deviation in the following data set: 23, 42, 36, 63, 31

Answers

Answer:

39.2 is the mean

the deviation is 15.2

Step-by-step explanation:

the mean of a set of numbers is the sum divided by the number of terms = 39.2

the deviation measures the spread of a data distribution of the sample = 15.2

Answer:

10.8

Step-by-step explanation:

To find the mean absolute deviation, first you need to find the mean. To find the mean, add up 23 + 42 + 36 + 63 + 31 and you'll get 195. Divide 195 by the total of numbers, which is 5, and you'll get 39.

After finding the mean, you need to find the distance between the mean, which is 39, and the numbers given. 23 is 16, 42 is 3, 63 is 24, 31 is 8, and 36 is 3. Then, you'll need to calculate the mean of the distances that you got.

16 plus 3 plus 24 plus 8 plus 3 = 54. Once you got this, divide 54 by the total of numbers, which is 5, and you'll get 10.8.

Order the numbers from least to greatest. Put the lowest number on the left. 2.63 2.361 2.631​

Answers

Answer:

2.361, 2.63, 2.631.

Step-by-step explanation:

Hope this helps.

Steak cost $3.85 per pound if you buy a 3 pound steak and pay for it with a $20 bill how much change will you get ?

Answers

Answer:

$ 8.45

Step-by-step explanation:

3.85 * 3 = 11.55

20 - 11.55 = 8.45

8.45 is the answer. :)

Find the measure of WX

Answers

Answer:

WX = 66°

Step-by-step explanation:

The inscribed angle WXY is half the measure of its intercepted arc, then

arc WY = 2 × 57° = 114°

XY is a diameter of the circle, so

arc XY = 180°

Thus

arc WX = 360° - (180 + 114)° = 360° - 294° = 66°

It 357 degrees ferweenhight

this is the question I need help with​

Answers

Answer:

brainllest if right

b

Step-by-step explanation:

The answer is A

Explanation: 9-(-12) is equal to positive 21.

12+9 is equal to positive 21.
Other Questions
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