3 years ago

Evaluate: sigma 20 and 1 = (3n+2)HEEELLLPPP MEEEEE

Mathematics

1 answer:

nadezda [96]3 years ago

5 0

Answer:

Step-by-step explanation:

$\displaystyle \sum_{n=1}^{20} (3n+2)=\dfrac{(62+5)*20}{2} =10*67=670\\$

You might be interested in

A 20-oz bottle of soda costs $2.98.What is the cost per ounce?

lawyer [7]

Answer:

$0.15

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Which number best represents a depth of seven hundred and five-tenths meters below the ground?

marusya05 [52]

Answer:

-700½ meters or -700.5 meters

Step-by-step explanation:

Usually, the depths below the ground are denoted by the minus sign.

Seven hundred and five-tenths meters mean 700+(5/10) which is equal to 700+1/2. So, the answer becomes -700½ meters or -700.5 meters.

4 0

3 years ago

A. 5.241 + 3 =<br>Ones<br>Tenths<br>Hundredths<br>Thousandths

Irina18 [472]

Answer:

8.241

Step-by-step explanation:

4 0

4 years ago

Read 2 more answers

Please help me with this! I will mark you as brainliest!

erastovalidia [21]

Step-by-step explanation:

$\frac{ {5}^{3} }{ {5}^{7} }$

$\frac{1}{ {5}^{7 - 3} }$

$\frac{1}{ {5}^{4} }$

${5}^{ - 4}$

Hope it will help :)

4 0

4 years ago

The radius of a circle is 12 cm. Find its area in terms of pie.

SCORPION-xisa [38]

Answer:A≈452.39cm

Step-by-step explanation:

5 0

3 years ago