3 years ago

V

Mathematics

1 answer:

KATRIN_1 [288]3 years ago

5 0

Answer:

sorry no idea hhcchuucghhf

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On the medicine bottle it says 2 grams for a 60 lb person. the child weighs 105 lbs. how much medicine should they get?

Ratling [72]

Answer:

3.5 Grams

Step-by-step

set 2grams/60lbs equal to xgrams/105

x representing the amount of medicine needed for a 105lb child

Then you divide 60 by 105.

60/105=1.75

Now you multiply 2 by 1.75.

2 x 1.75 = 3.5

3.5 is your answer because 105 is 1.75 times more lbs than 60lbs

meaning you would need 1.75 times the amount of 2grams

to determine the value of x, which is 3.5grams

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3 years ago

How to simplify an expression with a negative exponent

svetlana [45]

Answer:

Step-by-step explanation:

An negative exponent seems hard, but it really isn't!

Let's say you have $2^{-3}$

All you do is inverse the expression, or find the reciprocal. When you do this the exponent changes to positive .

$\frac{1}{2^{3} }$

$2^{3}$ simplifies into 8. So, the result is

$\frac{1}{8}$

Hope this helps! Please mark as brainliest, thanks!

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3 years ago

What are the roots of the polynomial equation? (picture below)

Marat540 [252]

Answer:

x = - 9, x = 0, x = 7

Step-by-step explanation:

Given

$\frac{1}{2}$ x(x - 7)(x + 9) = 0 ← in standard form

Equate each factor to zero and solve for x

$\frac{1}{2}$ x = 0 ⇒ x = 0

x - 7 = 0 ⇒ x = 7

x + 9 = 0 ⇒ x = - 9

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Answer:

1.06818181 there you go

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x=8 would be the answer.

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4 years ago

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