Answers
In general, nCr = n! / r! (n-r)!
Here, 7C3 = 7! / 3!(7-3)!
=7 x 6 x 5 x 4 x 3 x 2 x 1 /3 x 2 x 1 ( 4 x 3 x 2 x 1)
=7x6x5x4 / 4x3x2
=7x5x6x4 / 24
=35x24 / 24
=35
Related Questions
i don’t understand when it is all the same number
Answers
Answer:
5 preschoolers
Step-by-step explanation:
So this question states that yesterday, 10 preschoolers chose to play with stuffed animals and 10 different preschoolers chose to so other activities.
We can assume that there were 20 preschoolers at school yesterday (10 + 10 = 20).
From this given information, we can conclude that the preschoolers who would chose to play with stuffed animals would be the same amount at the preschoolers who would chose to do other activities.
Using all of the given information, we can also find that:
10/20 or 1/2 of the preschoolers would chose to play with the stuffed animals
and
10/20 or 1/2 of the preschoolers would chose to do other activities
We are then given that there are 10 preschoolers at school today. We are asked to find out how many of the preschoolers are expected to chose to play with the stuffed animals.
Previously, we found that 1/2 of the preschoolers yesterday chose to play with the stuffed animals. We can use this to find the expected amount of preschoolers who will chose to play with the stuffed animals today.
We can do this by multiplying 1/2 with the number of preschoolers today, or 10:
10 × 1/2 = 10/2 = 5
So it is expected that 5 preschoolers would chose to play with the stuffed animals today.
I hope you find my answer to be helpful. Happy studying.
solve for x filler filler filler filler filler filler
Answers
Answer:
-7
Step-by-step explanation:
All the white cubes represent 1, therefore there are 5 cubes. So the equation is 5 + -x = -2. Since 5 + -7 = -2, then -7 is our answer.
Find the missing side lengths of the triangle below
Answers
Answer:
90 degrees
Step-by-step explanation:
Stephanie is making 1 1/2 batches of cookies using 2 3/4 cup sugar. How much sugar total?()
Answers
Answer:
33/8 or 4 1/8 simplified.
the perimeter of a rectangle is 58m if its length is 17m find its breadth
pls help its urgent
Answers
58=2*17+2*b
58-34=2b
b=12 m
5x-3 < 22 help plssssss
Answers
Answer: x=25/5
Step-by-step explanation:
Answer:
x<5
Step-by-step explanation:
add 3 to both sides to get 5x alone
so 5x<25, divide by 5 to get x alone
Divide . round your answer to the nearest whole number 54724.9÷2=
Answers
Answer:
27362.45 to the nearest whole number would be 27362 i think
Step-by-step explanation:
I NEED HELP FAST! Which of the following sets of numbers could not represent the three sides of a triangle?
Answers
Answer:
(8, 23, 31)
Step-by-step explanation:
The sum of the lengths of the two shorter legs must be greater than the length of the longer leg
(not equal to either)
A bank loaned out $19,000, part of it at the rate of 7% per year and the rest at 15% per year. If the interest received i. 1 year totaled $2000, how much was loaned at 7%
Answers
Answer:
$28571.43 was loaned out.
Step-by-step explanation:
2000 x 100 / 7=28571.43
Answer:
$28571.43 was loaned.
this is because
2000 x 100 / 7
=28571.43
In ΔEFG, e = 4.7 inches, f = 4.8 inches and g=3.6 inches. Find the measure of ∠E to the nearest 10th of a degree.
Answers
Answer:
66.3
Step-by-step explanation:
i just did it on deltamath
Evaluate when t = 32 degrees is what
Answers
Answer:
Is there supposed to be a picture?
Step-by-step explanation:
Carla is using geometry software to design a stained-glass window. She begins by drawing
the lines and angles shown. If Carla adjusts the diagram so that Z1 and 23 are
supplementary angles, what is mZ2? Explain.
Answers
Answer:
Step-by-step explanation: where da answer at Kihanna?
Answer:vertical, 55, vertical, 55
Step-by-step explanation:
I NEED HELP BUT NO LINKS
Answers
Step-by-step explanation:
4
yall omg pls tell me this but also like this post and all that cause who else poops then after your done you play with it like slime i’m trying to prove a point
Answers
Answer:
please please anything but the penis privilege-
Answer:
...dude...no point should be proven
Let: g(x)= -5x^2
find: g(g(-1))
Answers
Answer:
[tex]g(g(-1))=-125[/tex]
Step-by-step explanation:
We are given the function:
[tex]g(x)=-5x^2[/tex]
And we want to find:
[tex]g(g(-1))[/tex]
First, we will evaluate the inner function. So:
[tex]g(-1)=-5(-1)^2=-5[/tex]
Therefore:
[tex]g(g(-1))=g(-5)[/tex]
Evaluate:
[tex]g(-5)=-5(-5)^2=-5(25)=-125[/tex]
Therefore:
[tex]g(g(-1))=-125[/tex]
is 6.762 greater than 6.649
Answers
What is the value of 4
Answers
Answer: The face value of 4 is 4 or four
Step-by-step explanation:
5 múltiplos de 7 mayores que 140
Answers
The Leaning Tower of Pisa makes an 84.5° angle with the ground. 11844.59 What is the supplement to this angle? O 90° 0 95.5 84.5° O 5.5°
Answers
Answer:
(b) 95.5°
Step-by-step explanation:
The supplement is found by subtracting the angle measure from 180°.
180° -84.5° = 95.5° . . . . supplement to given angle
Help pls!!!! Pls explain how you got the answer if you can!!! Have a blessed day
Also if you don’t know the exact answer answer and comments. And pls don’t waste my points this assignment is very important.
Answers
Answer:
A.) 4/25
Step-by-step explanation:
you are sitting on the edge of a pool with your legs in the water .as light waves pass from the pool into the air it look like your legs are not attached at the knees where they meet the water.this is because when they pass from one medium to another
Answers
Answer: The reason they do this is water refraction. I don't know if this was a question or not, but here you go.
round 23.0975 to the nearest hundredth
Answers
Answer:
23.10
Step-by-step explanation:
I am having a hard time with this problem will you help me please?
Answers
Answer:
2:3
Step-by-step explanation:
The ratio can be setup with 8:12 since the numbers are identifiable as the short sides. Simplify this ratio by dividing by 4 to get 2:3.
7+3 expressed as a difference
Answers
Answer:
7 - (-3)
Step-by-step explanation:
7 + 3 = 7 - (-3).
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Calculate the area of the composite figure, which is not drawn to scale. PLS HELP ME!!! IM BEGGING YALL!!!
Answers
Answer:
518 square centimeters
Step-by-step explanation:
A = 17 x 22 + (19 x 12)/2
A = 374 + 228 / 2
A = 374 + 144
A = 518
Hope that helps!
Please help if good at math
An isosceles trapezoid has a perimeter of 49 centimeters. Its shorter base measures 8
centimeters and its longer base measures 11 centimeters. The two remaining sides have the
same length
what is that length?
Answers
Answer:
15
Step-by-step explanation:
11+8=19
49-19=30
because its an isosceles trapezoid the missing sides are equal to each other so we just have to divide 30 by 2
30/2=15
the answer is 15
have a great day :D
Which statement is true about the purpose of trend lines in scatterplots?
O A trend line must pass through the largest data point.
O A trend line must pass through the smallest data point.
O A trend line can be used to make predictions in real-world situations.
O A trend line shows the exact data points collected.
Answers
Answer:
c just took the test edge 2020
Step-by-step explanation:
Answer:
✅ A trend line can be used to make predictions in real-world situations.
Step-by-step explanation:
megan read three books in two Weeks during summer at this same rate how many books can Megan read in eight weeks
Answers
Then do 4*3 which would equal 12 books!
Answer:
12 books
Step-by-step explanation:
if she can read 3 books in 2 weeks
then she can read 12 books in eight weeks because you multiply both numbers by 4.
2 times 4 = 8
3 times 4 = 12
PLEASE MARK BRAINLIEST AND GIVE 5 STARS.
In centimeters, what is the circumference of a circle with a radius of 6cm?
Answers
Answer:
C = 37.68
Step-by-step explanation:
Circumference of a circle:
C = 2πr
C = 2(3.14)(6)
C = 6.28(6)
C = 37.68
What is the solution for inequality on the model
Answers
Answer:
option 1 is correct. that is the answer