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4 years ago

8

Your friend asks you to help him study and will pay you 5 dimes the first time you help him. You agree to help if he multiplies

your payment by 5 for each study session. After 2 study sessions, you will receive 25 dimes, and after 3 study sessions, you will receive 125 dimes.

1 answer:

krok68 [10]4 years ago

8 0

Answer:

yes

Step-by-step explanation:

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Natasha2012 [34]

As we know that the standard equation of circle is ${\bf{(x-h)^{2}+(y-k)^{2}=r^{2}}}$ , where <em>r</em> is the radius of circle and centre at <em>(h,k) </em>

Now , as the circle passes through <em>(2,9)</em> so it must satisfy the above equation after putting the values of <em>h</em> and <em>k</em> respectively

${:\implies \quad \sf \{2-(-1)\}^{2}+(9-5)^{2}=r^{2}}$

${:\implies \quad \sf (3)^{2}+(4)^{2}=r^{2}}$

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After raising ½ power to both sides , we will get <em>r = +5 , -5</em> , but as radius can never be -<em>ve</em> . So <em>r = +</em><em>5</em><em> </em>

Now , putting values in our standard equation ;

${:\implies \quad \sf \{x-(-1)\}^{2}+(y-5)^{2}=(5)^{2}}$

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Refer to the attachment as well !

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2 years ago

Dylan hikes 90 miles in 3 days. At that rate, how many days does it take him to hike a total of 240 miles?

zysi [14]

Answer:

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Step-by-step explanation:

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A) -8
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3 years ago

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Let rs.5 denominations be x , then rs 10 denominations will be 90-x

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nydimaria [60]

Answer:

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Step-by-step explanation:

9+3=12

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