the formula is
n!/(n-k)!)k!
remember 0! = 1
so
9!/(9!-0!)9! = 9!/9! = 1
so
B. 1
What is the length of AC ?
Answer:
there is no enough data to find the answer
Nicole bought a microwave that was originally priced for $950
but it was 30% off. His sales tax is 7%. How much was his total bill
for this microwave?
A diagram of a coin is shown.
10.5 mm
What is the approximate circumference of the coin? Use 3.14 as an estimate for it.
O A 21 mm
O B. 33 mm
O c. 66 mm
O D. 84 mm
Answer:
66mm
Step-by-step explanation:
A diagram of a coin is shown.
Radius = 10.5 mm
The approximate circumference of the coin is calculated using the formula
2πr
Use 3.14 as an estimate for it.
r = 10.5mm
Hence:
2 × 3.14 × 10.5
= 65.94
Approximately = 66mm
O A 21 mm
O B. 33 mm
O c. 66 mm
O D. 84 mm
if the selling price is $10.00, and the rate of sales is 6% what is the sales tax?
Rearrange x=2y-6 to make y the subject.
Answer:
y=0.5x+3
Step-by-step explanation:
So the point of this is to make y the only thing on one side. So first you have to add 6 on both sides. That would make is x+6=2y. Next you need to divide 2 on both sides. That would equal 0.5x+3=y.
Hope this helped!!! :D
The required equation is [tex]y=0.5x+3[/tex].
Given equation is,
[tex]x=2y-6[/tex]
We have to rearrange the equation in terms of y.
Here, [tex]x=2y-6\\[/tex]
Adding 6 to both sides of the equation,
[tex]x+6=2y-6+6[/tex]
[tex]x+6=2y[/tex]
Now dividing the equation by 2 both sides, we get
[tex]\frac{x+6}{2} =y\\[/tex]
[tex]y=0.5x+3[/tex].
Hence the required equation is [tex]y=0.5x+3[/tex].
For more details on intercept form of equation follow the link:
https://brainly.com/question/1690609
are -2 and 2 equivalent?
Answer:
No
Step-by-step explanation:
-2 is 2 places left of the origin while 2 is 2 places right.
please help me on this problem
Answer:
1/64 or 0.015625
Step-by-step explanation:
find two numbers that multiply to -36 and add to -5
Answer:
-6 x 6= -36+-5= -41
Step-by-step explanation:
Answer:
4 and -9
Step-by-step explanation:
4 * -9 = -36 since 1 negative * 1 positive = a . negative
4 + -9 = -5 since 9 is the larger number the result stays negative
462 is what percent of 525?
Help please
462 is 88% of 525 :)
Two right triangles are similar and have areas of 36 m and 144 m². If the hypotenuse of the larger
triangle is 30 m long, what is the length of the hypotenuse of the smaller triangle?
Answer: 18
Step-by-step explanation:
Find the scale factor: 144/36= 4. But scale factor of area is r^2=4=> r= 2
Hypotenuse of small triangle is:
36/x=2 => x=18
What is the first step in solving the following equation?
28 = -12 - 4x
Answer:
4x = - 12 - 28Step-by-step explanation:
When we transpose - 4x to the LHS then it becomes positive i.e +4x
Now we transpose 28 to the RHS then it becomes negative i.e - 28
So the first step you have to is,
4x = - 12 - 28
No links please ASAP!!! Find the slope of the line that passes through (5,3) and (4,2).
Answer:
1
Step-by-step explanation:
y2 - y1/ x2 - x1
3-2/ 5-4 = 1/1 = 1
If my answer is incorrect, pls correct me!
If you like my answer and explanation, mark me as brainliest!
-Chetan K
Two numbers have a sum of 18, and 4 times the first number minus the second number is equal to 17. What is the smallest number?
Answer:
The smallest number is 7
Step-by-step explanation:
Using simultaneous equation;
x+y = 18.....(1)
4x-y = 17.....(2)
from equation (1)..
x+y = 18
y = 18-x...(3)
substitute y into equation (2)
4x-y = 17
4x-(18-x) = 17
4x-18+x = 17
4x+x = 17+18
5x = 35
x = 35÷5
x = 7
substitute x into equation (3)
y = 18-x
y = 18-7
y = 11
Therefore; x=7
y=11
11+7=18
(4×7)-11=17
the smallest number is 7
please help!!!!!!!!!
Answer:
that would be 1
Step-by-step explanation:
in this equation x=74 and 74/74 equals one
A horse runs in a field the speed time graph represents the first 12 seconds of the run after how many seconds had the horse run a distance of 75 metres
Answer:
9.5 seconds
Step-by-step explanation:
0-4 seconds => 20 meters
4-9.5 seconds => 55 meters
total = 75 meters
A horse run a distance of 75 metres in 9.5 seconds.
What is Speed?
The speed formula can be defined as the rate at which an object covers some distance. Speed can be measured as the distance traveled by a body in a given period of time.
Here, From the graph,
when, t = 4 sec.
distance = 4 X 10 X 1/2
= 20 meters
Now, 75 - 20 = 55 meters
So, 55/10 = 5.5 seconds
Total time = 5.5 + 4
= 9.5 sec.
A horse run a distance of 75 metres in 9.5 seconds.
Thus, A horse run a distance of 75 metres in 9.5 seconds.
Learn more about Speed from:
https://brainly.com/question/7359669
#SPJ2
What is the total surface area of the rectangular prism below?
Answer:
solution given:
length[l]=3 in
breadth [b]=5in
height [h]=8in
total surface area of the rectangular prism=?
we have
total surface area of the rectangular prism
=2[lb+bh+lh]
=2[3*5+5*8+3*8]
=158 in²
total surface area of the rectangular prism is 158 in².
Answer:
158
Step-by-step explanation:
formula is 2(hL+wh+lw)
Length- 3
width- 5
height - 8
Substitue values and get answer.
2 (24+ 40+15)
2 (79)
= 158
have a wonderful day!
Please answer quickly with explanation. I am in need of major help.
Suppose you work at a local radio station. You are in charge of a $180 budget for
new tapes and CDs. Record companies will give you 21 promotional (free) CDs. You
can then buy tapes for $8 and CDs for $12.
a. Write a linear inequality that models this situation.
Answer
b. Graph the inequality. Make sure to use proper scales and to label your axes
Answer:
0---22.5 and 21---36
Step-by-step explanation:
you will always have 21 free CDs so you can put a closed circle on 21 then you can have a max of 15 CDs (180/12) soo put another closed circle on 36
now time for tapes, which is easier, the minimum is 0 and the max is 22.5. Now put closed circles on each and you're done. Except that .5 might get you in trouble, use your own discretion on rather to leave it on the .5 or round. I don't know what your teacher is looking for so I will let you decide.
I NEED ANSWER ASAP LOTS OF POINTS
Anita plays two songs at her piano recital. All together, she plays 732 notes. She plays n notes in the first song How many notes does Anita play in the second song of her recital? A n + 732 B 732 +n 732n 732
Find the number of permutations of the first 8 letters of the alphabet for taking 1 letter at a time?
Answer:
The first 8 letters of the alphabet are:
{A, B, C, D, E, F, G, H}
To find the number of permutations, we can think of 8 positions. In each one of these positions, we can put one of the letters, now we need to find the number of possible options for each one of these positions, the total number of permutations will be equal to the product between all of these options.
Now, taking one letter at a time (to assign at each position)
For the first position, we have 8 options.
For the second position, we have 7 options (because one letter is already taken)
For the third position, we have 6 options (because two letters are already taken, one in the first position and another in the second)
For the fourth position, we have 5 options.
For the fifth position, we have 4 options.
For the sixth position, we have 3 options.
For the seventh position, we have 2 options.
For the last position, we have 1 option.
Then the total number of permutations is:
P = 8*7*6*5*4*3*2*1 = 40,320
Zoe had [tex]\frac{1}{3}[/tex] bag of cookies left. She needed to share it with 2 of her friends
Answer:
each friend would get [tex]\frac{1}{6}[/tex] of the bag
Step-by-step explanation:
when you divide a fraction, you use the KCF (keep, change, flip) method so,
[tex]\frac{1}{3}[/tex] ÷ [tex]\frac{2}{1}[/tex]
[tex]\frac{1}{3}[/tex] × [tex]\frac{1}{2}[/tex]
[tex]\frac{1}{6}[/tex]
HELP ME IM GETTING TIMED
Answer:
3/4 0.75 75%
Good luck!
Step-by-step explanation:
Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!
Answer:
8.25 pounds
bsnNMNsjsjshs
Free point.s! Just answer these two questions and write your first/last name down I am creating a project. I am doing. probability one.
Answer:
Rhiannon Taylor :)
Step-by-step explanation:
I do not speak spanish and I love spicy chips!
I dont know what I'm doing! could you help me
Answer:
c = 24.34
Step-by-step explanation:
Here, we can use the cosine rule
Generally, we have this as:
a^2 = b^2 + c^2 - 2bcCos A
12^2 = 14^2 + c^2 - 2(14)Cos 19
144 = 196 + c^2 - 26.5c
c^2 - 26.5c + 196-144 = 0
c^2 - 26.5c + 52 = 0
We can use the quadratic formula here
and that is;
{-(-26.5) ± √(-26.5)^2 -4(1)(52)}/2
(26.5 + 22.23)/2 or (26.5 - 22.23)/2
24.37 or 2.135
By approximation c = 24.34 will be correct
In the diagram shown, m_3 = 3x - 16 and m_4 = x + 84. Find the value of x. o 25 50 34 28
Answer:
50
Step-by-step explanation:
m3 and m4 are going to be equaivalent due to some law I don't remember the name of.
So, 3x-16 = x+84
(do some rearranging)
2x=100
x=50
14. Michelle purchased three stuffed bears for the price shown. The sales tax on her
purchase was 8.5%. What was the total cost for the stuffed bears? Round to the nearest
cent.
$9.49
w
F. $10.30
G. $30.89
H $80.67
3. $2.42
Answer: $30.89
Step-by-step explanation: you time $9.49 by three (28.47) then you find 8.5% of that total (2.41995) and then you add that to the total for the three bears and round to the nearest cent
What is the volume of a hemisphere with the radius of 24 ft?
Answer:
Toby began his math homework at 6:38 pm.
He finished at 7:09 pm.
How many minutes did Toby spend on his math homework?
Step-by-step explanation:
Calculate the area of the red triangle to find the area of the garden. Show your work. (2 points) A= 90 B=120 C=150
First to answer correctly gets brainliest, and show your work!
Answer:
b*h/2 120*90/2 10800/2=5400
Step-by-step explanation:
The area of the red triangle with sides A= 90 B=120 and C=150 would be equal to 5400.
What is the area of the triangle?The area of the triangle is defined as the product of half the base and the height of the triangle.
The area of the triangle = 1/2 x b x h
It is given that the length of the sides are as A= 90 B=120 C=150.
So, The area of the triangle = 1/2 x b x h
= b x h/2
= 120 x 90/2
= 10800/2
= 5400
Learn more about triangles;
https://brainly.com/question/7116550
Find the volume of the cylinder shown. Use 3.14 for pi. Round your answer to the nearest hundredth.
Answer:
1847.26 yards cubed
Step-by-step explanation:
V=πr^2h
π*49*12= 1847.26
Have a good day :)
Find the circumference of given circle. Use 3.14 for n
Answer:
B. 43.96
Step-by-step explanation:
The formula for circumference is C = 2 × pi × radius
2( 3.14 ) = 6.28
6.28( 7 ) = 43.96
Hope this helps ^^
Find the area of this triangle:
9m
9 m
16 m
15 m
Answer:
I’m doing it just a sec
Step-by-step explanation: