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2 years ago

5

Can someone help me and tell me the steps plzz

2 answers:

Elodia [21]2 years ago

7 0

So this is what you know:-
8 car race
What your looking for:-
How many arrangements for the first, second, and third place?

AfilCa [17]2 years ago

3 0

Answer:

C

Step-by-step explanation:

The actual answer would be 21 because 8 people can qualify for first place and after only 7 for second place because someone already got first, then for third place only 6 would qualify but, here the only reasonable answer would be 24 because maybe all 8 people can qualify for first, second, and third, which would make no sense.

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Georgia wants to evenly divide 84 trading cards among 6 friends. How many cards will each friend get ?

iragen [17]

each friend will get 14 cards.

84/6 = 14

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2 years ago

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Reptile [31]

Answer:

The real zeros of f(x) are x = 0.3 and x = -3.3.

Step-by-step explanation:

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

In this problem, we have that:

$f(x) = x^{2} + 3x - 1$

So

$a = 1, b = 3, c = -1$

$\bigtriangleup = 3^{2} - 4*1*(-1) = 13$

$x_{1} = \frac{-3 + \sqrt{13}}{2*1} = 0.3$

$x_{2} = \frac{-3 - \sqrt{13}}{2*1} = -3.3$

The real zeros of f(x) are x = 0.3 and x = -3.3.

7 0

2 years ago

What is the simplest form of the expression? 3sqrt(24a^10b^6)?

Anastasy [175]

Answer:

$\text{The simplest form is }6\sqrt6a^5b^3$

Step-by-step explanation:

Given the expression $3sqrt(24a^{10}b^6)$ .

we have to find the simplest form of the expression.

$3sqrt(24a^{10}b^6)$

= $3(24^{\frac{1}{2}}a^{\frac{10}{2}}b^{\frac{6}{2}})$

= $3(24^{\frac{1}{2}}a^5b^3)$

= $6\sqrt6a^5b^3$

which is the simplest form of the given expression.

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3 years ago

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The sum of three consecutive even integers is 288288. find the integers.

kirza4 [7]

Suppose the three integers are x, x+2, and x+4
x+x+2+x+4=288
3x+6=288
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x=94
the three numbers are 94, 96, and 98

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3 years ago

Simplify (7x−13)−(x+5)

igor_vitrenko [27]

Greetings!

Simplify.
$(7x-13)-(x+5)$
Distribute the Parenthesis.
$7x-13-x-5$
Combine Like Terms.
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Hope this helps.
-Benjamin

5 0

2 years ago

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