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2 years ago

2[3(42 +1)] -32? Helpppp

Mathematics

2 answers:

Lady bird [3.3K]2 years ago

6 0

Answer:

226

Step-by-step explanation:

2[ 3<u>(42 + 1)</u> ] - 32 = 2[ 3 * 43 ] - 32 {operation inside Inner parenthesis}

= 2 * 129 - 32 {operation inside Outer parenthesis}

= 258 - 32 {Multiplication}

= 226

Sergio039 [100]2 years ago

5 0

Answer:

226

Step-by-step explanation:

Use PEMDAS

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14 points

Lelu [443]

Answer:

11,040 is the answer

Step-by-step explanation:

you just need to subtract

7 0

3 years ago

Read 2 more answers

(−5)3x7(yz)4 / (3)2x2y8z2

g100num [7]

Answer:

$\dfrac{(-5)3x^7(yz)^4}{(3)2x^2y^8z^2}=\dfrac{-5x^5z^2}{2y^4}$

Step-by-step explanation:

Given:

The expression to simplify is given as:

$\frac{(-5)3x^7(yz)^4}{(3)2x^2y^8z^2}$

In order to simplify this, we have to use the law of indices.

1. $(ab)^m=a^mb^m$

So, $(yz)^4=y^4z^4$

Substitute this value in the above expression. This gives,

$=\dfrac{(-5)3x^7y^4z^4}{(3)2x^2y^8z^2}\\\\\\=\dfrac{-15x^7y^4z^4}{6x^2y^8z^2}......(-5\times 3=15\ and\ 3\times 2=6)$

Now, we use another law of indices.

2. $\frac{a^m}{a^n}=a^{m-n}$

So, $\frac{x^7}{x^2}=x^{7-2}=x^5,\frac{y^4}{y^8}=y^{4-8}=y^{-4}, \frac{z^4}{z^2}=z^{4-2}=z^2$

Substitute these values in the above expression. This gives,

$=\frac{-15}{6}\times x^5\times y^{-4}\times z^2\\\\=\frac{-5x^5y^{-4}z^2}{2}$

Finally, we further simplify it using the law $a^{-m}=\frac{1}{a^m}$

So, $y^{-4}=\frac{1}{y^4}$

Therefore, the given expression is simplified as:

$\dfrac{(-5)3x^7(yz)^4}{(3)2x^2y^8z^2}=\dfrac{-5x^5z^2}{2y^4}$

5 0

3 years ago

Please help. I’ll mark you as brainliest if correct!

OLEGan [10]

Answer:

x +0y+0z = 400

-x +y+0z = 150

-8x +0y +z = 250

Step-by-step explanation:

The last column is the solution

The rest of the columns are the coefficients of the variables

x +0y+0z = 400

-x +y+0z = 150

-8x +0y +z = 250

5 0

3 years ago

If 1 mile is equal to 1.61 kilometers, how many kilometers are there in 50 miles

Alik [6]

kilometers and miles are units used to measure distance.

1 mile is equal to 1.61 km

so if 1 mile is equivalent to 1.61 km

then to see how many kilometers are there in 50 miles we have to multiply 50 miles by 1.61 km/mile

therefore the number of km in miles is - 50 miles x 1.61 km/mile = 80.5 km

distance in km - 80.5 km

7 0

3 years ago

Read 2 more answers

Simplify each expression:<br>5.) 4 4/5 + 3/4 × 2 1/4

In-s [12.5K]

Answer: 6 39/80

Step-by-step explanation:

8 0

3 years ago