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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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What is the expression in factored form . 9x^2 -4
GaryK [48]
$\begin{align} 9x^2-4&=\left(\sqrt{9x^2}+\sqrt4\right)\left(\sqrt{9x^2}-\sqrt4\right)\\&=\boxed{(3x+2)(3x-2)} \end
8 0
4 years ago
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Voting in Clarksville's annual school board elections has been going down by 5% from one election to the next. If 440 parents vo
slamgirl [31]

Answer:

377 parents

Step-by-step explanation:

We start by writing an exponential equation

FV = PV(1 - r)^t

FV is future value = ?

PV is present value = 440

r is rate = 5/100 = 0.05

t = 3

Substituting these values

FV = 440(1 - 0.05)^3

FV = 377.245

This is approximately 377

6 0
3 years ago
Freee points freee points, arent I so humble? ;)
Alenkasestr [34]

Answer:

ayo thanks g

Step-by-step explanation:

5 0
3 years ago
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PLEASEEEE HELPPPP!!!!!<br> Alll the points i haveee!!!
LUCKY_DIMON [66]

Answer:

c

Step-by-step explanation:

C. This is the correct answer because the wage rises by $2, which is 2/20=10% increase. Next year the increase percent is 2.20/22=10%. That's a constant percent increase

3 0
4 years ago
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The perimeter of a triangle is 60 inches. If the sides of the triangle are 2x, 3x, and 5x, find the length of the shortest side.
Ira Lisetskai [31]
2x + 3x + 5x = 60
10x = 60
a = 6
Shortest side = 2x = 12 inches

6 0
4 years ago
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