A researcher gathers a sample of n=89 people to try a new

Mathematics

1 answer:

muminat2 years ago

5 0

Answer:

Step-by-step explanation:

+#;$;_;_:;+$hshshsbbsns

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Can someone please help me with number 19

kipiarov [429]

The expression of the problem is, 8x.
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3 years ago

Simplify (7ab)squared 0 <br>A) 7<br> B) 1 <br>C) 7ab <br>D)0

PolarNik [594]

Answer:

The answer to this is B.

Step-by-step explanation:

Anytime a number/variable is squared by a 0, it always equals a 1.

Hope this Helped!!!

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3 years ago

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What is the first term in a geometric sequence if the common ratio is − 2 and the sum of the first six terms is −105?

Serggg [28]

$\bf \qquad \qquad \textit{sum of a finite geometric sequence}
\\\\
S_n=\sum\limits_{i=1}^{n}\ a_1\cdot r^{i-1}\implies S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\quad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
r=\textit{common ratio}\\
----------\\
r=-2\\
n=6\\
S_6=-105
\end{cases}$

$\bf -105=a_1\left( \cfrac{1-(-2)^6}{1-(-2)} \right)\implies -105=a_1\left( \cfrac{1-(64)}{1+2} \right)
\\\\\\
-105=a_1\left( \cfrac{-63}{3} \right)\implies -105=a_1(-21)
\\\\\\
\cfrac{-105}{-21}=a_1\implies 5=a_1$

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3 years ago

At a carnival, you spin a spinner that has four equal-sized sections, each a different color: green, yellow, red, and blue. If y

Alex_Xolod [135]

Answer:

The answer

Step-by-step explanation:

The expected value equation could only be

2x = 3y

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3 years ago

More brinliest if its right :D im horrible at math

olga55 [171]

Answer:

Step-by-step explanation:

because the unit rate is 6 miles per hour for the first one and 10 miles per hour for the second

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2 years ago

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