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3 years ago

Which of the following is not a way to represent the solution of the inequality 8x – (5x + 4) 2-31?

Mathematics

1 answer:

Butoxors [25]3 years ago

7 0

Answer:

caca sh

Step-by-step explanation:

shart

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Josue broke a cell sample into 12 batches, each weighing 6.9 x 10 ^-10

Klio2033 [76]

Using proportions, it is found that the original sample weighed $8.28 \times 10^{-9}$ grams.

This question is solved by <em>proportions</em>, using a rule of three.

The weight of 1 batch, in grams, is of $6.9 \times 10^{-10}$ . How much do the sample of 12 batches weigh?

The rule of three is:

1 batch - $6.9 \times 10^{-10}$ grams.

12 batches - x grams

Applying cross multiplication:

$x = 12 \times 6.9 \times 10^{-10} = 82.8 \times 10^{-10}$

Applying scientific notation:

$8.28 \times 10^{-9}$

The original sample weighed $8.28 \times 10^{-9}$ grams.

You can learn more about proportions at brainly.com/question/24372153

5 0

3 years ago

Read 2 more answers

Math questions help please

Kazeer [188]

Answer:

Step-by-step explanation:

Q6 6^(-7-4+11)

6^0

Q7 5^11

Q8. -5^(-9+10)

-5^(1)

-5

4 0

3 years ago

Which was the resulting equation of that step? (x + 2)2 – 9 = –5

GalinKa [24]

Answer idk ask wpb_cubanBoi23 on instagram

Step-by-step explanation:

4 0

3 years ago

Select the correct answer.

o-na [289]

It’s B because C is too much and A is to little for the correct answer

4 0

3 years ago

A bank's loan officer rates applicants using their FICO credit score. The ratings are normally distributed with a mean of 711 an

tekilochka [14]

Answer:

The answer is "778"

Step-by-step explanation:

Given value:

$\to \mu= 711\\\\\to \sigma= 80\\\\\to P(Z >0.84) = 0.20\\\\\to z = 0.84$

The formula for z-score:

$\to x = z \times \sigma + \mu \\\\\to x = 0.84 \times 80 + 711 \\\\ \to x=67.2 +711\\\\ \to x= 778.2\\\\ \to x= 778$

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3 years ago