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Eva8 [605]
3 years ago
14

What expression is equivalent to

Mathematics
1 answer:
kaheart [24]3 years ago
3 0

Answer:

Option (2)

Step-by-step explanation:

Given expression is \sqrt[3]{64a^6b^7c^9}

By simplifying this expression,

\sqrt[3]{64a^6b^7c^9}=\sqrt[3]{(4)^3(a^2)^3(b^2)^3(b)(c^3)^3}

                 =(4a^2b^2c^3)\sqrt[3]{b}

Option (1)

2abc^2\sqrt[3]{4a^2b^3c} = 2ab^2c^2\sqrt[3]{a^2c}

Option (2)

4a^2b^2c^3(\sqrt[3]{b}) [Fully simplified form]

Option (3)

8a^3b^3c^4(\sqrt[3]{bc} ) [Fully simplified form]

Option (4)

8a^2b^2c^3(\sqrt[3]{b})

Expression given in Option (2) is equivalent to the given expression.

Option (2) will be the answer.

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Which number line shows the solution to the inequality -4x + 3 < -5
Elodia [21]

Answer:x>2

Step-by-step explanation:

4x/4>8/4

8 0
3 years ago
Can someone please help me on this
Natali5045456 [20]
Is there anything else on the paper that can help me with that? like any questions at the top?
7 0
3 years ago
A = ???? 4 −2
irinina [24]

Answer:

1. The matrix A isn't the inverse of matrix B.

2. |B|=12, |A|=12

Step-by-step explanation:

1. We want to know if matrix A is the inverse of matrix B, this means that if you do the product between B and A you have to obtain the identity matrix.

We have:

A=\left[\begin{array}{cc}4&-2\\-1&3\end{array}\right]

and

B=\left[\begin{array}{cc}3&2\\1&4\end{array}\right]

A and B are 2×2 matrices (2 rows and 2 columns), if you multiply them you have to obtain a 2×2 matrix.

Then if A is the inverse of B:

B.A=I

Where,

I=\left[\begin{array}{cc}1&0\\0&1\end{array}\right]

Observation:

If you have two matrices:

A=\left[\begin{array}{cc}a&b\\c&d\end{array}\right]\\and\\B=\left[\begin{array}{cc}e&f\\g&h\end{array}\right]\\\\\\A.B=\left[\begin{array}{cc}(a.e+b.g)&(a.f+b.h)\\(c.e+d.g)&(c.f+d.h)\end{array}\right]

Now:

B.A=\left[\begin{array}{cc}3&2\\1&4\end{array}\right].\left[\begin{array}{cc}4&-2\\-1&3\end{array}\right]\\\\\\B.A=\left[\begin{array}{cc}4.3+(-2).1&4.2+(-2).4\\(-1).3+3.1&(-1).2+3.4\end{array}\right]\\\\\\B.A=\left[\begin{array}{cc}12-2&8-8\\-3+3&-2+12\end{array}\right]\\\\\\B.A=\left[\begin{array}{cc}10&0\\0&10\end{array}\right]

B.A=\left[\begin{array}{cc}10&0\\0&10\end{array}\right]\neq \left[\begin{array}{cc}1&0\\0&1\end{array}\right]=I\\\\\\B.A\neq I

Then, the matrix A isn't the inverse of matrix B.

2. If you have a matrix A:

A=\left[\begin{array}{cc}a&b\\c&d\end{array}\right]

The determinant of the matrix is:

|A|=ad-bc

Then the determinant of B is:

B=\left[\begin{array}{cc}3&2\\1&4\end{array}\right]

a=3, b=2, c=1, d=4

|B|=3.4-2.1\\|B|=12-2=10

The determinant of A is:

A=\left[\begin{array}{cc}4&-2\\-1&3\end{array}\right]

a=4, b=-2, c=-1, d=3

|A|=4.3-(-2).(-1)\\|B|=12-2=10

6 0
4 years ago
What is the GCF of 72 and 60
REY [17]
The GCF of 72 is 60 is 12.
3 0
4 years ago
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42<br> Solve the equation: 8 =<br> a) z = 10<br> b) z = 44<br> c) z=3<br> d) z=7
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Step-by-step explanation:

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8 0
3 years ago
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