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nika2105 [10]
3 years ago
5

What is the Product of 2+√-121 And 3+√-64? Must be written as a complex number in standard form.​

Mathematics
1 answer:
PIT_PIT [208]3 years ago
6 0

Answer:

6+38i

Step-by-step explanation:

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What is the product of 7/8×1/2
Gelneren [198K]

\frac{7}{8}   \times  \frac{1}{2}

=  \frac{7 \times 4}{8}

=  \frac{28}{8}

=  \frac{ \cancel{28}}{ \cancel{8}}

= \frac{14}{4}

=  \frac{ \cancel{14}}{ \cancel{4}}  =  \frac{7}{2}

<h2>The required answer is 7/2 </h2>

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7, 2x+2y= 16<br> 2x + (y= 28
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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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What does this graph tell you about the growth of a pumpkin? Math item stem image
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3 years ago
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​Ramona's Garage charges the following labor rates. All customers are charged for at least 0.5 hr.
algol13

Answer:

a. The linear function is given by,

y = 60x + 30  [y is in $ and x is in hour and x ≥ 0.5]

  = 60 [for x < 0.5]

b. The total cost of the repair job is,  $ 675 .

Step-by-step explanation:

Let, the linear function describing garage charge( y in $) and no. of hours of repair job ( x in hour) be,

y = mx + c    [for x ≥ 0.5]  -----------(1)

where, m is the slope of the line and c is the y intercept.

Now ,

m = \frac {90 - 60}{1 - 0.5}

  = 60  ----------------(2)

Now, putting the value of m and the point (x,y) = (0.5, 60) in (1), we get,

60 = 60 \times 0.5 + c $

⇒ c = 30 ----------------- (3)  

Hence, the linear function is given by,

y = 60x + 30  [y is in $ and x is in hour and x ≥ 0.5] ------------(4)

  = 60 [for x < 0.5]

Now, putting

x = 4 hr 15 min

= 4\dfrac {15}{60} hour

= 4.25 hour in (4), we get,

y = 60 \times 4.25 + 30  [in $]

= $ 285

So, the total cost of the repair job,

= $ (285 + 390)

= $ 675

3 0
3 years ago
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