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Juliette [100K]

3 years ago

11

There are 20 students on the School Leadership Council. They need to form a committee of 4 in order to plan the upcoming school

dance. How many different groups of 4 can be created from the council?
A)4845
B)116,280
C)24
D)20!

1 answer:

yarga [219]3 years ago

6 0

Answer:

um I did the math and I got 5, so i dont really understand

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What percent of 78 = 39?

S_A_V [24]

39/78 = .5 = 50%
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The answers are
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The first term of a geometric sequence is 7, and the ratio (multiplier) is 3. what is the sum of the first 5 terms of the sequen

Anni [7]

Hello,

1)
$a_{1}=7$
$a_{2}=7*3$
$a_{3}=7*3^2$

$a_{n}=7*3^{n-1}$

$s=a_{1}+a_{2}+a_{3}+a_{4}+a_{5}=7*(1+3^1+3^2+3^3+3^4)$
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4 0

3 years ago

What is the slope?<br> First, determine the slope.<br> (200,14)<br> (225,16)

Maksim231197 [3]

Answer:

$\displaystyle m=\frac{2}{25}$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Algebra I</u>

Slope Formula: $\displaystyle m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

<u>Step 1: Define</u>

Point (200, 14)

Point (225, 16)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

Substitute in points [SF]: $\displaystyle m=\frac{16-14}{225-200}$
[Fraction] Subtract: $\displaystyle m=\frac{2}{25}$

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Mice21 [21]

The answer is 25 because 405/16.2=25.

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3 years ago