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3 years ago

Guys I need the right answer ASAP look at the pic and give me the surface area the options are

Mathematics

1 answer:

Angelina_Jolie [31]3 years ago

5 0

Answer:

the right answer is option D. 90 feet^2

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Find the sum of the first 18 terms of the arithmetic sequence whose nth term is an = 3n - 1.

vodka [1.7K]

Answer:

495

Step-by-step explanation:

In order to find the sum of the first 18 terms you have to find the 18th term and the first term using the equation given.

a1=3(1)-1 a1=2

a18=3(18)-1 a18= 53

Then plug in 53 for an, 18 for n, and 2 in for a1 in the sum equation: Sn=n/2(a1+an)

Sn=18/2(2+53) Solve for sn= 495

7 0

3 years ago

830000 in scientific notation

DedPeter [7]

Answer:

8.3 * 10 ^5

Step-by-step explanation:

830000

To change this to scientific notation, we move the decimal 5 places to the left. The exponent will be positive 5 because we moved it to the left

8.3 * 10^ +5

8.3 * 10 ^5

4 0

3 years ago

Which is the graph of f(c)=3(2/3)

Assoli18 [71]

This should be the correct answer. I recommend Desmos.

4 0

3 years ago

To make orange fizz, Noah mixes 4 scoops of powder with 6 cups of water. Andre mixes 5 scoops of powder with 8 cups of water. Us

lozanna [386]

Answer:

do u still need help on this question

5 0

2 years ago

A team consisting of Persephone, Neptune, Ares, and Roger need to select one person to be team captain. In how many ways can thi

Lorico [155]

Answer: 4 ways

Step-by-step explanation:

Given : A team consisting of Persephone, Neptune, Ares, and Roger need to select one person to be team captain.

The number of people in the team = 4

The number of ways to select the team captain from 4 members is given by :-

$^4P_1=\dfrac{4!}{(4-3)!}=\dfrac{4\times3!}{3!}=4$

Hence, there are 4 ways to select team captain.

5 0

3 years ago