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2 years ago

Beth writes a number that shows 60 parts out of 100

Mathematics

2 answers:

erik [133]2 years ago

7 0

Answer:

60/100

6/10

3/5

60%

0.60

Step-by-step explanation:

dangina [55]2 years ago

4 0

Answer:

60/100 orrrrrrrrrrrrrrrr 6/10

Step-by-step explanation:

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How many roots does this has? x^2+(2√5x)+2x=-10 find Discriminant

Alexxandr [17]

Given:

The equation is

$x^2+(2\sqrt{5})+2x=-10$

To find:

The number of roots and discriminant of the given equation.

Solution:

We have,

$x^2+(2\sqrt{5})x+2x=-10$

The highest degree of given equation is 2. So, the number of roots is also 2.

It can be written as

$x^2+(2\sqrt{5}+2)x+10=0$

Here, $a=1, b=(2\sqrt{5}+2), c=10$ .

Discriminant of the given equation is

$D=b^2-4ac$

$D=(2\sqrt{5}+2)^2-4(1)(10)$

$D=20+8\sqrt{5}+4-40$

$D=8\sqrt{5}-16$

$D\approx 1.89>0$

Since discriminant is $8\sqrt{5}-16\approx 1.89$ , which is greater than 0, therefore, the given equation has two distinct real roots.

3 0

2 years ago

A 4.5 kg cat requires medication at a dose rate of 5 mg/kg once daily for the next 7 days. The tablets are available in 10 mg st

Marta_Voda [28]

Answer:

Approximately 16 tablets of medicine

Step-by-step explanation:

Based on the information above , we can use a Rule of Three to first figure out how many mg the cat would need to ingest per day.

$\frac{5mg}{1kg} = \frac{x}{4.5kg}$

$\frac{5mg*4.5kg}{1kg} = 22.5mg$

Now we see that the cat needs to take a daily dose of 22.5mg. Since the Tablets come at a strength of 10 mg per tablet then,

$22.5 / 10 = 2.25$

The cat would need to take 2.25 tablets per day. Since she needs to take the dose for the next 7 days then,

$2.25 * 7 = 15.75$

She would need to take approximately 16 tablets of medicine during the week .

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

5 0

2 years ago

PLEASE HELP!!

Alborosie

Answer:

Step-by-step explanation:

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3 years ago

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Describe a situation that models a linear pattern and then describe a situation that models a nonlinear pattern. Do not state wh

Bumek [7]

1) A boy received a collection of 30 baseball cards and decided to start collecting. If he adds 2 stamps every month, how long it will take to have 50 stamps in his collection.

2) A girl opens a saving account with $100 and the bank pays 1 % monthly interest rate, how much money she will have after 12 months if she does not deposit or draw any amount.
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3 years ago

How to do simple long division

Fiesta28 [93]

Answer:

Dividing. Set up the equation. On a piece of paper, write the dividend (number being divided) on the right, under the division symbol, and the divisor (number doing the division) to the left on the outside. The quotient (answer) will eventually go on top, right above the dividend.

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3 years ago