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ratelena [41]
3 years ago
15

Please answer correctly!! Will mark brainliest!!!

Mathematics
2 answers:
ki77a [65]3 years ago
8 0

Answer:

Step-by-step explanation:

<h2>YOU WILL DO GREAT</h2>
34kurt3 years ago
8 0

Answer:

$\frac{1}{a^{12}b^8}$

Step-by-step explanation:

Considering the expression:

$\left(\frac{a^{-3}}{b^2}\right)^4$

$\frac{\left(a^{-3}\right)^4}{\left(b^2\right)^4}$

Now state the property:

$a^{-1}=\frac{1}{a^n}, a\neq 0  $

$\frac{\frac{1}{a^{12}}}{\left(b^2\right)^4}$

$\frac{\frac{1}{a^{12}}}{b^8}$

$\frac{1}{a^{12}b^8}$

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Inessa05 [86]

The equation is 0.1x + 0.15(50-x)=1.20(50)

Step-by-step explanation:

Here you need 50ml of 12% alcohol solution.

You have 10% and 15% alcohol solutions.

Take volume of 10% alcohol solution to be x ml

Take volume of 15% alcohol solution to be y ml

Form equations;

x+y=50 ml--------------------------equation 1

0.1x +0.15 y= 12% of 50

0.1x+0.15y=6-----------------------equation 2

Now you have simultaneous equations, use a graph tool to solve for values of x and y as attached.

or use the mixture equation the get value of x

0.1x + 0.15(50-x)=1.20(50)

The values of x and y are ;

(x,y) (30,20) which means;

y is 20 ml of 15% alcohol

x is 30 ml of 10% alcohol

Learn More

  • brainly.com/question/2405496

Keywords : concentration, mixture

#LearnwithBrainly

5 0
2 years ago
Consider the two data sets. Which has the higher mean and median? What is the higher mean and median?
Klio2033 [76]

Set 1 mean - 23.625

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This shows the answer is D :)

8 0
3 years ago
A small pack of trading cards cost $5, and a large pack costs $10. Eliza wants to spend $30 on trading
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Answer:

the answer is 4 small 1 large

3 0
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Read 2 more answers
Find the product of 400 and 9.460730473 times 10/15
azamat

Answer:

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Step-by-step explanation:

5 0
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In the zy-plane the graph of y = -4x - 2 crosses the y - axis at the point (0,k). What is the value of k
Levart [38]

Answer:

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