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mel-nik [20]
3 years ago
7

in a school election 1/3 of the students vote. there are 655 ballots. find the number of students at the school

Mathematics
1 answer:
Basile [38]3 years ago
6 0

Answer:

45

Step-by-step explanation:

2*23

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Evaluate the diversity of this portfolio. Explain, using complete sentences, if this portfolio is not diverse, minimally diverse
irina [24]
This investment seems very diverse. It is divided into 5 different categories with no more than 25% in any one category.

It is a very conservative approach. 95% of the investments are in very stable account. Only 5% is devoted to a developing firm.

This investment plan would be for an investor who is very fearful of losing money. They would most likely be close to retirement age, in a situation where they just want to maintain the value of their account.
8 0
3 years ago
Two of the steps in the derivation of the quadratic formula are shown below.
Svetllana [295]

The step 7 is a wrong step, because in the denominator 1 is written in place of 2.

<h3>What is a quadratic equation?</h3>

The quadratic equation is given as ax² + bx + c = 0. Then the degree of the equation will be 2. Then we have

Two of the steps in the derivation of the quadratic formula are shown below.

The equation is given below.

\rm \dfrac{b^2 - 4ac}{4a^2} = \left (x + \dfrac{b}{2a} \right )^2

Then the above equation can be written as

\rm \pm \sqrt{ \dfrac{b^2 - 4ac}{4a^2}} = \left (x + \dfrac{b}{2a} \right )\\\\\\x = \dfrac{-b}{2a} \pm \sqrt{ \dfrac{b^2 - 4ac}{4a^2}}\\\\\\x = \dfrac{-b}{2a} \pm \dfrac{\sqrt{ b^2 - 4ac}}{2a}\\\\\\x = \dfrac{-b \pm \sqrt{ b^2 - 4ac}}{2a}

The step 7 is a wrong step, because in the denominator 1 is written in place of 2.

More about the quadratic equation link is given below.

brainly.com/question/2263981

#SPJ1

7 0
2 years ago
A country population in 1993 was 85 million in 1996 it was 90
inn [45]

Answer:

Ohh I think I might know what question you are referencing.

In 2003, the population will be:

P = 86.22 million

Step-by-step explanation:

P = Po exp(0.0180t)

P = 72 exp(0.0180(10))

P = 86.22 million


6 0
4 years ago
On which triangle can the law of cosines be used to find the length of an unknown side?
Archy [21]
The answer to the question is d

7 0
3 years ago
Janie has $3. She earns $1.20 for every chore she does and can do fractions of chores. She wants to earn enough money to buy a c
NeTakaya

Answer:

$1.20c + $3 ≥ $13.50     or     $1.20c ≥ $10.50

Step-by-step explanation:

So Janie has $3, and earns $1.20 for each chore. The number of chores she does is c, and she needs $13.50 for the cd. The amount of money she has after doing c number of chores is $1.20c + $3. In order for her to have enough money to buy the cd, the amount of money she has after doing c chores must be greater than or equal to $13.50. This can be written as the inequality:

$1.20c + $3 ≥ $13.50

This will work, but we can simplify this inequality by subtracting $3 from both sides of the equation.

$1.20c ≥ $10.50

$1.20c + $3 ≥ $13.50     or     $1.20c ≥ $10.50

I hope this helps. :)

5 0
3 years ago
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