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3 years ago

Answer 21 and 22 please

Mathematics

1 answer:

Vedmedyk [2.9K]3 years ago

3 0

21. product means the result from multiplication. the ans is 40k
22. w - 54

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A group of researchers asked 90 college students about a time they had delivered bad news to someone. The accompanying table sho

Pachacha [2.7K]

Hey your dad and dad said that she was just gonna be there and I didn’t mean that to her mom and I told you I was just saying that I was going it is answer b

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3 years ago

Find the missing value for log4 9- log4 11= log 4 [ ]

Alexandra [31]

Answer:

Step-by-step explanation:

Hi there,

To get started, recall the logarithm rules. For this question, we can use the log rule specifically when subtracting two log functions that have the same base:

$log_b\alpha -log_b\beta =log_b[\frac{\alpha }{\beta } ]$

In this prompt, our base is 4, so b in the above formula. Using this formula, we can find the missing <u><em>argument</em></u> (the number inside of the log, what we are asked to solve for):

$log_49-log_411=log_4[\frac{9}{11} ]\\$ hence the missing argument is 9/11

At this point, there is no easier say to simplify, unless you wish to approximate 9/11 as 0.818. If you wish to solve for the exponent, you will have to use common log or natural log to do so.

If you liked this solution, leave a Thanks or give a rating!

thanks,

6 0

3 years ago

The second term in a geometric sequence is 20. The fourth term in the same sequence is 11.25. What is the common ratio

damaskus [11]

Let $a_n$ be the n'th term of the sequence.

so $a_1$ is the first term, $a_2$ the second term and so on...

In a geometric sequence with $a_1=c$ , and common ratio r, the terms are as follows:

$a_1=c$
$a_2=cr$
$a_3=c r^{2}$
$a_4=c r^{3}$
.
.
that is, each term is its previous term times the common ratio r.

In our example

$a_2=cr=20$ and $a_4=c r^{3}=11.25$

$\frac{a_2}{a_4}= \frac{cr}{c r^{3}}= \frac{1}{ r^{2}}= \frac{20}{11.25}= 1.778$

so $r^{2} =1/1.778=0.56$

$r= \sqrt{0.56}= 0.75$

Answer: r=0.75

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3 years ago

Eight times the sum of 8 and some number is 16. What is the number?

sesenic [268]

8(8 + X) = 16

64 + X = 16
-64 -64

X = -48

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3 years ago

Andrew drove 45 more miles than Nicole. If they drove a combined total of 111 miles, how many miles did Nicole drive?

Airida [17]

Answer:

Nicole drove 66 miles.

Step-by-step explanation:

You can set of an equation of 45 - x = 111 x representing the amount of miles Nicole drove. You would subtract 45 from both 45 and 111 and get that x = 66.

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4 years ago