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rodikova [14]
3 years ago
9

The square of a number is 12 less than 7 times the number. What is the number? –4 or –3 –4 or 3 –3 or 4 3 or 4

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
6 0

Answer:

Answer: D (3 or 4)

Step-by-step explanation:

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Step-by-step explanation:

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Use the roster method to write the given set. You may need to consult a reference, such as the internet or an encyclopedia. (ent
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Simplify the expression.
spayn [35]

Answer:

C. \huge\frac{1}{3x {y}^{2}  {z}^{4}}

Step-by-step explanation:

(9 {x}^{2}  {y}^{4}  {z}^{8} )^{  - \frac{1}{2} }  \\   \\  = ( {3}^{2}  {x}^{2}  {y}^{4}  {z}^{8} )^{  - \frac{1}{2} }  \\  \\  =  \frac{1}{( {3}^{2}  {x}^{2}  {y}^{4}  {z}^{8} )^{ \frac{1}{2} }}  \\  \\  =  \frac{1}{(3x {y}^{2}  {z}^{4})^{2 \times  \frac{1}{2} }  }  \\  \\  =  \frac{1}{3x {y}^{2}  {z}^{4}} \\  \\  \red{ \bold{ \therefore \: (9 {x}^{2}  {y}^{4}  {z}^{8} )^{  - \frac{1}{2} } =  \frac{1}{3x {y}^{2}  {z}^{4}} }}\\

7 0
4 years ago
Robert has a container in the shape of a cube with an edge length of 6.1 cm. What is the volume of the container? Enter your ans
pickupchik [31]
226.981 I think Because you have to multiply 6.1*6.1*6.1
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3 years ago
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valentina_108 [34]

Answer:

\frac{15a+20b}{6}     15a+20b/6

Step-by-step explanation:

\mathrm{Apply\:the\:fraction\:rule}:\quad \:a\cdot \frac{b}{c}=\frac{a\cdot \:b}{c}

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