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Nata [24]
3 years ago
14

Which of the following statements about the work shown below is true?

Mathematics
1 answer:
4vir4ik [10]3 years ago
5 0

Answer:

B). The distributive property was not applied correctly in the second step.

Step-by-step explanation:

We need to find the correct option for marking error from given choices:

\left(x^2+2x+6\right)\left(2x^2-4x-1\right)

Step 1:

x^2\left(2x^2-4x-1\right)+2x\left(2x^2-4x-1\right)+6\left(2x^2-4x-1\right)

No error.

Step 2:

If you apply distributive property correctly then 2nd term gives:

2x\left(2x^2-4x-1\right)=4x^3-8x^2-2x

While 2nd term is not like that.

Hence final answer is :

B). The distributive property was not applied correctly in the second step.

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Line CD contains points C(7, 4) and D(6, 1). Line JK is parallel to line CD. Which two points lie on line JK?
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The absolute value function, f(x) = –|x| – 3, is shown. What is the range of the function? all real numbers all real numbers les
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  all real numbers less than or equal to –3

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Look at the y-values that the graph shows. There are none greater than -3. Any value of -3 or less is possible.

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Write each expression as a single power of 10​
swat32

Answer:

<u>It</u><u> </u><u>is</u><u> </u>

<u>{10}^{5}</u>

Step-by-step explanation:

\frac{ {10}^{4}. {10}^{5}  . {10}^{6} }{ {10}^{3} . {10}^{7} }  =  \frac{ {10}^{(4 + 5 + 6)} }{ {10}^{(3 + 7)} }  \\  \\  =  \frac{ {10}^{15} }{ {10}^{10} }  \\  \\  =   {10}^{(15 - 10)}  \\  =  {10}^{5}

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3 years ago
How tall is a stack of cube shaped blocks whose volumes are 375 cube inches, 648 cube inches, and 1029 cube inches?
djverab [1.8K]

Answer:

L = 25.959 inches

Step-by-step explanation:

Volume of first cube = 375 inch³

Volume of second cube = 648 inch³

Volume of third cube = 1029 inch³

We need to find the length of the stack of the cube shaped block.

We know that,

The volume of a cube = a³ (a is side of a cube)

a_1=\sqrt[3]{375} \\\\=7.211\ \text{inches}

a_2=\sqrt[3]{648 } \\\\=8.653\ \text{inches}

a_3=\sqrt[3]{1029}  \\\\=10.095\ \text{inches}

Hence, the total length of the stack is :

L = 7.211 + 8.653 + 10.095

= 25.959 inches

Hence, this is the required solution.

5 0
3 years ago
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