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Karo-lina-s [1.5K]
3 years ago
14

Find the 87th term of this sequence: 157, 150, 143, ...

Mathematics
1 answer:
nirvana33 [79]3 years ago
7 0

Answer:

<h3>                 \bold{a_{87}=-445}</h3>

Step-by-step explanation:

a_1=157\\a_2=150\\\\d=150-157=-7\\\\a_n=a_1+d(n-1)\\\\a_{87}=157+(-7)(87-1)=157-7\cdot86=-445

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The Schuller family has five members. Dad is 6ft 2in tall. Mom is 3 inches shorter than Dad, but 2 inches taller than Ivan. Marc
qwelly [4]

Answer:

Mean = 5 feet 2 inches.

Step-by-step explanation:

1 feet = 12 inches

Height of Dad = 6 feet 2 inches  = {(6 × 12)+2} = 74 inches

Mom is 3 inches shorter than dad = 74 - 3 = 71 inches (5 ft 11 in)

Since mom is 2 inches taller than Ivan,

Height of Ivan = 71 - 2 = 69 inches  (5 ft 9 in)

Marica is 5 inches shorter than Ivan,

Height of Marica = 69 - 5 = 64 inches  (5 ft 4 in)

Marica is twice as tall as Sally-Jo.

Height of Sally-Jo = 64 ÷ 2 = 32 inches (2 ft 8 in)

Hence the mean height of the Schuller family

= \frac{74+71+69+64+32}{5}

= 62 inches

converting 62 inches to feet = \frac{62}{12} = 5 feet 2 inches

Mean height of the Schuller family is 5 feet 2 inches.

3 0
3 years ago
Put it in order yes or no?and how do yk if it is or not
Serggg [28]

9514 1404 393

Answer:

  yes, yes, no, no

Step-by-step explanation:

An equation is linear if no term has a variable with an exponent other than 0 or 1. There can be no products of variables.

The equations with terms x³ or x² will not be linear.

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6 0
3 years ago
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Solve For X. Solve similar triangles (advanced)​
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4+3 = 7
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3 0
3 years ago
A cook mixes 4 pounds of rice into 5 quarts of boiling water.
professor190 [17]
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A group of friends has gotten very competitive with their board game nights. They have found that overall, they each have won an
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The standard deviation is  4 games

A standard deviation (or σ) is a measure of how dispersed the facts are in relation to the mean. Low general deviation method statistics are clustered around the imply, and excessive trendy deviation indicates facts are more unfold.

Don't forget the statistics set: 2, 1, 3, 2, four. The mean and the sum of squares of deviations of the observations from the mean will be 2. 4 and 5.2, respectively. as a consequence, the same standard deviation could be √(5.2/5) = 1.01.

In data, the same old deviation is a degree of the quantity of variant or dispersion of a set of values. A low preferred deviation indicates that the values tend to be close to the mean of the set, while a high general deviation shows that the values unfold out over a much broader variety.

Given that,

mean = μ = 18

standard deviation = Σ =  6

n = 2

μ  x =  μ = 18 games

√  x = Σ / √ = 6  

√2 = 4 games

Learn  more about standard deviation here brainly.com/question/12402189

#SPJ4

6 0
2 years ago
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