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4 years ago

Using the rational root theorem, list the possible zeros

Mathematics

2 answers:

Irina18 [472]4 years ago

8 0

Answer:

see below

Step-by-step explanation:

We can use the rational root theorem.

3x^2 – 6x -7 = 0.

List factors of p:

p is the constant term,7 so the factors are

-7,7,1,-1

List factors of q:

q is the coefficient of the leading term 3

+3,-3,+1,-1

List possible zeros: +/- p/q

±7/3, ±1/3, ±7/1, ±1/1

±7/3, ±1/3, ±7, ±1

lapo4ka [179]4 years ago

5 0

Answer:

+/- 1, +/- 7, +/- 1/3, +/- 7/3

Step-by-step explanation:

Factors of 7: +-1, +-7

Factors of 3: +-1, +-3

Possible roots:

+/- 1, +/- 7, +/- 1/3, +/- 7/3

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Suppose three marksmen shoot at a target. The ith marksman fires ni times, hitting the target each time with probability Pi, ind

astraxan [27]

Answer:

Distribution is NOT binomial.

Step-by-step explanation:

In order to be a binomial distribution, the probability of success for each individual trial must be the same. Since each marksman hits the target with probability Pi, the probability of success (hitting the target) is not necessarily equal for all trials. Therefore, the distribution is not binomial.

In this case, the distribution would only be binomial if Pi was the same for every "ith" marksman.

6 0

3 years ago

As a sales person Jonathan is paid 50 per week +3% of the total Amount he sells. This week he wants to earn at least 100. Write

steposvetlana [31]

Answer:

The Inequality with integer coefficient for the total sales is $5000+3x\geq 10000$

Hence Jonathan should make total sales of at least <u>1667</u> to earn at least 100.

Step-by-step explanation:

Given:

Amount paid per week = 50

Addition amount = 3% of Total sales.

Let the Total sales be 'x'.

∴ Additional amount = $\frac{3}{100}x$

Amount he wants to earn this week $\geq$ 100

We need to write the inequality with integer coefficient for the total sales and also to find the total sales.

Solution:

We cans say that;

Amount paid per week plus Additional amount should be greater than or equal to Amount he wants to earn this week.

framing in equation form we get;

$50+\frac{3}{100}x\geq 100$

Now we will make the denominator common using LCM we get;

$\frac{50\times100}{100}+\frac{3}{100}x\geq 100$

$\frac{5000}{100}+\frac{3}{100}x\geq 100$

$\frac{5000+3x}{100}\geq 100$

Multiplying both side by 100 we get;

$100 \times\frac{5000+3x}{100}\geq 100\times 100\\\\5000+3x\geq 10000$

Hence The Inequality with integer coefficient for the total sales is $5000+3x\geq 10000$

On solving the above equation we get;

Subtracting both side by 5000 we get;

$5000+3x-5000\geq 10000-5000\\\\3x\geq 5000$

Dividing both side by 3 we get;

$\frac{3x}{3}\geq \frac{5000}{3}\\\\x\geq 1666.67$

Hence Jonathan should make total sales of at least <u>1667</u> to earn at least 100.

5 0

4 years ago

Find the perimeter of the following rectangle.

Ede4ka [16]

So the formula to workout the area of a rectangle is height X width

so 11/3 x 5/8

which is 55/24 ft if they want a mixed number then... 2 $\frac{7}{24\\}$

hope this helps

6 0

3 years ago

A number is 9 more than another number. Twice the sum of the two numbers is 10. Find the two numbers.

Brrunno [24]

Step-by-step explanation:

the formula can be;

X+9x=10

10x=10X=10/10=1

X=1+9(1)=1+9=10 Answer

4 0

3 years ago

A box contains 3 marbles, 1 red, 1 green, and 1 blue. Consider an experiment that consists of taking 1 marble from the box, then

bazaltina [42]

Answer:

Below.

Step-by-step explanation:

With replacement the sample space is:

(RR), (GG), (BB), (RG), (RB), (GR), (GB), (BR), (BG).

Without replacement you will not get 2 of the same colour, so it is

(RG), (RB), (GR), (GB), (BR), (BG).

7 0

3 years ago