2 years ago

There are 29 second graders at recess. Then, 27 third graders and 43 fourth graders join them at recess.

Mathematics

1 answer:

aev [14]2 years ago

8 0

Answer:

99 students

Step-by-step explanation:

To get this answer, you need to add all of the numbers up because the 3rd graders and 4th graders are joining the 2nd graders. 27+43=70. 70+29=99.

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The sum of the first 15 terms of a geometric sequence with 7 as the first term and a common ratio of -3 is __________.

Andre45 [30]

Step-by-step explanation:

the formula for the sum of the first n terms of a geometric sequence is

Sn = s1(1 - r^n)/(1 - r)

with r being the common ratio and s1 is the first term.

so,

S15 = 7×(1 - (-3)¹⁵)/(1 - -3) = 7×(1 - -14,348,907)/4 =

= 7×14,348,908/4 = 7×3,587,227 = 25,110,589

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1 year ago

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PilotLPTM [1.2K]

Answer:

1.x^7

2.x^10

3.a^2

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Step-by-step explanation:

1. x^(5+2)=x^7

2.x^(5*2)=x^10

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2 years ago

Read 2 more answers

List the following expressions in order from least to greatest. (explain how you calculated the

irga5000 [103]

Step-by-step explanation:

Since d is an decimal, the higher the power of d, the smaller the value.

8 0

2 years ago

Pls help me with this, tyyy!

Olenka [21]

Answer:

Input : 12

Output : -48

Step-by-step explanation:

Hope it helped

6 0

2 years ago

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White raven [17]

It’s the s California nd one

4 0

3 years ago