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Free_Kalibri [48]
3 years ago
5

Express the series using sigma notation. 10 + 50 + 250 + 1250.

Mathematics
1 answer:
miskamm [114]3 years ago
8 0
Each next term is being multiplied by 5. Assuming there are only 4 terms to the sum, you have

10+50+250+1250=10\times5^0+10\times5^1+10\times5^2+10\times5^3=\displaystyle\sum_{i=0}^310\times5^i
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What is the answer to 3+x
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8 0
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Rewrite the expression by factoring (y+7) 3y(y+7)+(y+7)
pogonyaev

Answer:

(3y+2)(y+7)

Step-by-step explanation:

I think you meant (y+7)+3y(y+7)+(y+7). Anyways, we have to count the number of (y+7) there are. The first term tells us we have 1 group. The second term tell us we have 3y groups. The last term tells us we have 1 group. Therefore we have 1+3y+1 groups of y+7 which gives us (3y+2)(y+7)

4 0
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7 0
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A temperature recorded in Antarctica was −123°F. The temperature recorded in the Sahara Desert was 135°F. How many degrees warme
Mashcka [7]

Answer:

<em>The Sahara Desert is 258 °F warmer that Antarctica.</em>

<em></em>

Step-by-step explanation:

Temperature at Antarctica = -123 °F

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The difference in temperature = 135 - (-123) = 135 + 123 = 258 °F

This means that the Sahara Desert is 258 °F warmer that Antarctica.

8 0
4 years ago
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