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3 years ago

Solve -7/2=-28 please solve and show work

Mathematics

1 answer:

Assoli18 [71]3 years ago

5 0

Step-by-step explanation:

-7/2 = -28

-7 = -28 × 2

-7 = -56

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4(3x^2y^4)^3 / (2x^3y^5)^4

tatyana61 [14]

Solving the expressions $\frac{4(3x^2y^4)^3}{(2x^3y^5)^4}$ we get $\frac{27}{4x^{6}y^{8}}$

Step-by-step explanation:

We need to Solve the expression: $\frac{4(3x^2y^4)^3}{(2x^3y^5)^4}$

Solving:

$\frac{4(3x^2y^4)^3}{(2x^3y^5)^4}$

$=\frac{4(3^3x^6y^{12})}{(2^4x^{12}y^{20})}\\=\frac{4(27x^6y^{12})}{(16x^{12}y^{20})}\\=\frac{108x^6y^{12}}{16x^{12}y^{20}}$

Applying exponent rule: $\frac{x^a}{x^b}=x^{a-b}$

$=\frac{108x^{6-12}y^{12-20}}{16}\\=\frac{27x^{-6}y^{-8}}{4}$

Another exponent rule says: $x^{-a}=\frac{1}{x^a}=$

$=\frac{27}{4x^{6}y^{8}}$

So, solving the expressions $\frac{4(3x^2y^4)^3}{(2x^3y^5)^4}$ we get $\frac{27}{4x^{6}y^{8}}$

Keywords: Solving Exponents

Learn more about Solving Exponents at:

#learnwithBrainly

8 0

3 years ago

In the diagram of Triangle ABC: DR Il AC, DB=6, AD=2, and DE=9.Find AC

katen-ka-za [31]

12 because db/ad = 3 and ab = 8
thus de+(de/3) is the answer
12 <- answer

3 0

3 years ago

In a recent school newspaper survey, 3,000 randomly selected teenagers were asked to cite their primary transportation method to

Verizon [17]

Answer: There is a 90% chance that the true proportion of teenagers who drive their own car to school will lie in (0.5907, 0.9093).

Step-by-step explanation:

Interpretation of a% confidence interval : A person can be a% confident that the true population parameter lies in it.

Here, A 90% confidence interval to estimate the true proportion of teenagers who drive their own car to school is found to be (0.5907, 0.9093).

i.e. A person can be 90% confident that the true proportion of teenagers who drive their own car to school lies in (0.5907, 0.9093).

Hence, correct interpretation is : There is a 90% chance that the true proportion of teenagers who drive their own car to school will lie in (0.5907, 0.9093).

7 0

2 years ago

Which statement regarding the diagram is true?

babymother [125]

Answer: C

Step-by-step explanation:

6 0

3 years ago

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Solve the simultaneous equations<br> 7x – 3y = 24<br> 2x + 3y = 3<br> x=?<br> y =?

Ivahew [28]

Answer:

×=3 y=-1

Step-by-step explanation:

I hope this helps

4 0

3 years ago

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