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2 years ago

HELP ME PLEASE I WILL MARK YOU AS A BRAINLIEST!!!

Mathematics

1 answer:

Ymorist [56]2 years ago

5 0

You add all the like terms together to get your final answer

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Find the equivalent exponential expression. (7^4)^5

Nikolay [14]

Hi!

To solve exponental equations, multiply the exponents.
4·5=20

The answer is $7^{20}$

Hope this helps! :)
-Peredhel

6 0

2 years ago

Read 2 more answers

For the system of equations that follows, use Gaussian elimination to obtain an equivalent system whose coefficient matrix is in

Rainbow [258]

Answer:

$\begin{Vmatrix}1 & 0 & 0& 46/41 &180/41\\0 & 1 & 0&1/41 &-5/41\\0&0 & 1 & -8/41& -42/41\end{Vmatrix}$

Step-by-step explanation:

From the question we are told that

System of equations given as

x₁ + 3x₂ + x₃ + x₄ = 3;

2x₁ - 2x₂ + x₃ + 2x₄ = 8;

x₁ - 5x₂ + x₄ = 5

Matrix form

$\begin{Vmatrix}1 & 3 & 1&1&3\\2 & -2 & 1&2&8\\0&1 & -5 & 1& 5\end{Vmatrix}$ $\begin{Vmatrix}x_1\\x_2\\x_3\\x_4\end{Vmatrix}$

Generally the echelon reduction is mathematically applied as

$\begin{Vmatrix}1 & 3 & 1&1&3\\2 & -2 & 1&2&8\\0&1 & -5 & 1& 5\end{Vmatrix}$

Add -2 times the 1st row to the 2nd row

$\begin{Vmatrix}1 & 3 & 1&1&3\\0 & -8 & -1&0&2\\0&1 & -5 & 1& 5\end{Vmatrix}$

Multiply the 2nd row by -1/8

$\begin{Vmatrix}1 & 3 & 1&1&3\\0 & 1 & 1/8&0&-1/4\\0&1 & -5 & 1& 5\end{Vmatrix}$

Add -1 times the 2nd row to the 3rd row

$\begin{Vmatrix}1 & 3 & 1&1&3\\0 & 1 & 1/8&0&-1/4\\0&0 & -41/8 & 1& 21/4\end{Vmatrix}$

Multiply the 3rd row by -8/41

$\begin{Vmatrix}1 & 3 & 1&1&3\\0 & 1 & 1/8&0&-1/4\\0&0 & 1 & -8/41& -42/41\end{Vmatrix}$

Add -1/8 times the 3rd row to the 2nd row

Add -1 times the 3rd row to the 1st row

$\begin{Vmatrix}1 & 3 & 0&49/41&165/41\\0 & 1 & 0&1/41 &-5/41\\0&0 & 1 & -8/41& -42/41\end{Vmatrix}$

Add -3 times the 2nd row to the 1st row

$\begin{Vmatrix}1 & 0 & 0& 46/41 &180/41\\0 & 1 & 0&1/41 &-5/41\\0&0 & 1 & -8/41& -42/41\end{Vmatrix}$

3 0

2 years ago

Part A: Solve –vp + 40 < 95 for v. Show your work. (4 points) Part B: Solve 8w – 3r = 45 for r. Show your work. (6 points)

Ierofanga [76]

Subtract 40 from both sides
-vp+40-40<95-40

Simplify
-vp<55
Multiply both sides by -1 (reverse the inequality)

(-vp) (-1) > 55 (-1)

Simplify
vp> -55

Divide both sides by v

vp ÷ v > -55 ÷ v

Simplify
p> -55 ÷ v

3 0

2 years ago

Read 2 more answers

American car makers produce 5,650,000 cars each year. In a report, Ben wrote that Americans made 6,550,000 cars. What mistake di

Degger [83]

Ben wrote the number for the hundred thousands place in the millions place

3 0

3 years ago

Three times the largest of three consecutive even integers is 76 more than the sum of the other two integers what are the intege

DerKrebs [107]

go tot he website of

https://www.algebra.com/algebra/homework/Problems-with-consecutive-odd-even-integers/Problems-with-c...

It will help you understand the problem and give you the answer.

7 0

3 years ago