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Xelga [282]
3 years ago
10

At a party 8 students each shake hands with every other student once. How many total handshakes were made at the party?

Mathematics
1 answer:
Ludmilka [50]3 years ago
3 0
This took me mad long but I got 31
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A right rectangular prism's edge lengths are 14 inches, 6 inches, and 3 1/3 inches. How many unit cubes with edge lengths of 2/5
DochEvi [55]

ANSWER

4375 unit cubes

EXPLANATION

The volume of a right rectangular prism is given by;

V=lbh

We substitute the given dimension to obtain,

V=14 \times 6 \times  \frac{10}{3}  = 280i {n}^{3}

The volume of the unit cube with edge lengths

\frac{2}{5}

is

(\frac{2}{5})^{3}  =  \frac{8}{125}  {in}^{3}

To find the number of unit cubes that can fit inside the prism, we divide the volume of the rectangular prism by the volume of the unit cube.

=  \frac{280}{ \frac{8}{125} }

= 4375

7 0
3 years ago
Find the radius...<br><br> Help plz
Vladimir [108]
It is 20 for the radius
6 0
3 years ago
If the radius of the circle is 7 cm, find its area, rounded to 2 decimal places.
stich3 [128]

Answer:

153.94

Step-by-step explanation:

The formula for area is pi*radius^2

the radius is 7, so we do pi7^2 which is 49pi

49pi is 153.93804 which is 153.94 rounded to two decimal places

8 0
3 years ago
11. |6- 15| - |5(-4)|= ?<br> A.-29<br> B. -11<br> C. 1<br> D. 11<br> E. 29
Burka [1]

Answer:

B

Step-by-step explanation:

|6- 15| - |5(-4)| =

|-9| - |-20| =

(9)- (20) =

-11

4 0
3 years ago
The length of a rectangle is 5 Inches more than its width, x. The area of a rectangle can be represented by the equation
Paul [167]

Answer:

Factor:

x^2+5x-300=0

(x-15)(x+20)=0

x=15 is the width

x+5=20 is the length

Step-by-step explanation:

4 0
4 years ago
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