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3 years ago

Can we multiply these two monomials? (4x^2)(-2b^3a)

Mathematics

1 answer:

arlik [135]3 years ago

7 0

Answer:

-8b^3ax^2

Step-by-step explanation:

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Step by step workout of ;<br> log x^3+log 5x=5 log 2-log 2/5

Charra [1.4K]

Answer:

x = 2

Step-by-step explanation:

$log \: {x}^{3} + log \: 5x = 5log \: 2 - log \: \frac{2}{5} \\ \\ \therefore \: log( {x}^{3} \times 5x) = log {2}^{5} - log \: \frac{2}{5} \\ \\ \therefore \: log( 5{x}^{4}) = log 32 - log \: \frac{2}{5} \\ \\ \therefore \: log( 5{x}^{4}) = log \bigg(32 \times \frac{5}{2} \bigg) \\ \\ \therefore \: log( 5{x}^{4}) = log \bigg(16 \times 5) \\ \\ \therefore \: 5{x}^{4}= 16 \times 5 \\ \\ \therefore \: {x}^{4}= {2}^{4} \\ \\ \huge \purple{ \boxed{\therefore \: {x} = 2}}$

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3 years ago

Probabilities are __<br> one.

VladimirAG [237]

Answer:

Im gonna go with A

Step-by-step explanation:

3 0

2 years ago

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If todd spent 4.5 hours studying last week, how many minutes did he spend studying?

34kurt

Answer:

It would be B.

Step-by-step explanation:

4.5 hours = 270 minutes

5 0

2 years ago

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The pH level of tomato juice is 4.2. What is the hydrogen-ion concentration [H+]| for tomato juice?

garri49 [273]

Given:

pH = 4.2 of tomato

Required:

hydrogen-ion concentration [H+]| for tomato juice

Solution:

The formula for the pH relating hydrogen ion concentration is pH = -log[H+] where H+ is the hydrogen ion concentration. so, substitute the value of pH

pH = -log[H+]

4 = - log[H+]

-4 = log[H+]

10^-4 = [H+]

[H+] = 1x10^-4M

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2 years ago

Simplify (−6.5)(2)(−5). 65 6.5 −6.5 −65

lana [24]

Answer:

Step-by-step explanation:

(-6.5)(-5) = +32.5, and then

(32.5)(2) = 65 (answer)

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2 years ago

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