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3 years ago

PLEASE HELP ASAP What is the sum of the first 7 terms of the series: -8 + 16 - 36 + 64 -...?

Mathematics

1 answer:

mr Goodwill [35]3 years ago

6 0

-12

-8+16-36+64-112+188-124

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The teacher concluded that there is a correlation between having a computer and having a phone. Do you agree with the teacher? E

timama [110]

Answer:

yes I agree with teacher

Step-by-step explanation:

I I think this because 1 people that have a phone and a computer are the highest group and two becauseit seems that most of the class has a phone it also seems that most of the class has a computer

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3 years ago

The ratio of the Areas of the bases of these cones is 9 to 4.

Lapatulllka [165]

Answer:

Step-by-step explanation:

This is something you learn in Geometry. Gotta love Geometry and all of its hundreds of rules for triangles and circles and all that good stuff!!

The rule for similar figures is

ratio of perimeter (one-to-one)-->area (square the one-to-one)-->volume (cube the one-to-one).

We are given area. You CANNOT CUBE THE AREA MEASURES TO GET TO THE VOLUME!! You have to find the one-to-one first and then go forward from there.

If the area is the one-to-one squared, then

$\frac{\sqrt{9} }{\sqrt{4} }=\frac{3}{2}$

The one-to-one is 3:2. To get to the volume now, cube those one-to-one values:

$\frac{3^3}{2^3}=\frac{27}{8}$

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3 years ago

Marshall can buy 5 T-shirts for $55.

Stells [14]

Answer:

$33

Step-by-step explanation:

55 divided by 5 is 11, so each shirt costs $11. So that means 3 shirts would be $33.

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3 years ago

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If you are paid every 3 months, or 4 times a year, what is that called?

ollegr [7]

Thank you! This helped a lot!!! :)

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2 years ago

Find the percent.<br>3 is what percent of 8?

shepuryov [24]

Answer:

37.5

Step-by-step explanation:

3/8

3 divided by 8= .0375

.0375 times 100= 37.5

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3 years ago