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2 years ago

A student club has 9 members. How many ways can the club choose a president, vice president, and treasurer?

Mathematics

1 answer:

sladkih [1.3K]2 years ago

3 0

504 because when you multiply 9 by 8 and then by 7 (9x8x7) you get 504.

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Maya drew one highlighter at a time from a container of highlighters. After each draw, the highlighter was replaced,

jonny [76]

Answer:

I think it's red

Sorry dont understand the question

8 0

2 years ago

F(x) = 5x + 4 g(x) = 5x2 – 7x – 2 Find: f(x) · g(x)

weeeeeb [17]

Answer:

$25x^{3}-15x^{2} -38x-8$

Step-by-step explanation:

Multiply the equations together

(5x+4)(5x^2-7x-2)

25x^3-35x^2-10x+20x^2-28x-8

Add like terms

25x^3-15x^2-38x-8

7 0

2 years ago

Find the vertex of the parabola y= x^2-2x-1 vertex (?,?)

SpyIntel [72]

$y=ax^2+bx+c\\\\vertex:(x_v;\ y_v)\\\\x_v=\frac{-b}{2a}\ and\ y_v=f(x_v)$

$y=x^2-2x-1\\\\a=1;\ b=-2;\ c=-1\\\\x_v=\frac{-(-2)}{2\cdot1}=\frac{2}{2}=1\\\\y_v=1^2-2\cdot1-1=1-2-1=-2\\\\Answer:(1;-2)$

5 0

2 years ago

Read 2 more answers

Multiply (5 + 3i)(5 − 3i) 16 + 15i 16 − 15i 16 34

Annette [7]

Answer:

(5 + 3i)(5 − 3i) = 34

Step-by-step explanation:

The multiplication of two identical binomials who have different symbol, can be solved using the factoring case of a difference of squares:

$(a-b).(a+b)=a^{2}-b^{2}$

So, in this case:

$(5+3i).(5-3i) = 5^{2}-(3i)^{2}$

$=25-9i^{2}$

Remember that $i=\sqrt{-1}$

So: $i^{2}=-1$

We replace on the polynomial:

$=25-9.(-1) = 25+9=34$

3 0

3 years ago

Read 2 more answers

HURRY! What are all the possible rational solutions for x^4-3x^2+2x5=0

xxTIMURxx [149]

Answer: x = 1

x =(-3-√-15)/4=(-3-i√ 15 )/4= -0.7500-0.9682i

x =(-3+√-15)/4=(-3+i√ 15 )/4= -0.7500+0.9682i

x2 = 0

Step-by-step explanation:

4 0

2 years ago