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8_murik_8 [283]
3 years ago
7

A group of 12 people who have never met are in a classroom. how many handshakes are exchanged if each person shakes hands exactl

y once with each of the other people in the room
Mathematics
1 answer:
MaRussiya [10]3 years ago
5 0
66 handshakes occurred 
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Jo borrowed 3,800 for 4 months from a bank. the bank discounted the loan at 5.5%.
garri49 [273]
A.
I=prt
I=(3800)(.055)(4/12)
I=$69.67

b.
Principal-interest=money received from Bank
3800-69.67=$3730.34

c.
I=prt
69.67=3730.34(r)(4/12)
69.67=1243.45r
69.67/1243.45=1243.45/1243.45r
.056≈r
Rate is 5.60%
8 0
3 years ago
Select the ordered pairs that are on the x-axis. Choose all that apply.
ZanzabumX [31]
-4,0 
2,0
both are true because they do not have a y coordinate, meaning they dont move off of the x-axis
6 0
4 years ago
Read 2 more answers
What is the slope of a line perpendicular to the line whose equation is 2x+8y -64 Fully reduce your answer.
Lelechka [254]

Answer: I am pretty sure it is y=-1/4x-8. Hope this helps!

Step-by-step explanation:subtract the 2x from both sides which gives you 8y=-2x-64. Then you want to divide both sides by 8 to get y=-1/4x-8

6 0
3 years ago
What is the radius of a sector of a circle with the central angle of measure 45 and whose area is 9/8 pi cm^2
larisa86 [58]

The radius of the sector of the circle with the given area is: B. 3.

<h3>What is the Area of a Sector?</h3>

Area of sector of a circle = ∅/360 × πr².

Given the following:

Area of sector = 9/8 π cm².

∅ = 45 degrees

Plug in the values into the formula

9/8π = 45/360 × πr²

1.125 = 0.125 × r²

1.125/0.125 = r²

9 =  r²

r = 3 cm

Learn more about the area of sector on:

brainly.com/question/22972014

#SPJ1

5 0
2 years ago
Please help me please
HACTEHA [7]

Answer:

200.96 ft²

Step-by-step explanation:

The area (A) of a circle is calculated as

A = πr² ( r is the radius ) , then

A = 3.14 × 8² = 3.14 × 64 = 200.96 ft²

4 0
3 years ago
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