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3 years ago

6

Kwan has determined that he can use the expression 2(n+1)−3 to find the number of squares for any step number n. Find an equival

ent expression that Kwan can also use. I need help

1 answer:

marishachu [46]3 years ago

8 0

Answer:

the answer is 2n-1

Step-by-step explanation:

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Determine the missing value!

xz_007 [3.2K]

Hi there!

missing value: -9

<em><u>1.Multiply the two negative:</u></em>

<em><u /></em> $-2$ <em><u>·</u></em> $-4=-8$ <em><u /></em>

<u><em>2.Find the value of 72*-8:</em></u>

<u><em /></u> $72*-8=-9$ <u><em /></u>

Therefore, the missing value is -9.

4 0

3 years ago

35 POINTS. I need help! Please!

topjm [15]

There is no solution for the first one

if you eliminate y you get 2 equations
-13x - 13z = -25
-13x - 13x = -15

- there is no solution to theses

a23 means the element in the second row and the 3rd column

so its -5

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4 years ago

Can you answer this for me? asap

galben [10]

46+19+54= 119, so the answer is 119

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3 years ago

Read 2 more answers

When individuals in a sample of 150 were asked whether or not they supported capital punishment, the following information was o

borishaifa [10]

Answer:

$\chi^2 = \sum_{i=1}^n \frac{(O_i -E_i)^2}{E_i}$

The expected values for all the categories is :

$E_i =\frac{150}{3}=50$

And then the statistic would be given by:

$\chi^2 = \frac{(40-50)^2}{50}+\frac{(60-50)^2}{50}+\frac{(50-50)^2}{50}=4$

And the best option would be:

b. 4

Step-by-step explanation:

For this problem we have the following observed values:

Yes 40 No 60 No Opinion 50

And we want to test the following hypothesis:

Null hypothesis: All the opinions are uniformly distributed

Alternative hypothesis: Not All the opinions are uniformly distributed

And for this case the statistic would be given by:

$\chi^2 = \sum_{i=1}^n \frac{(O_i -E_i)^2}{E_i}$

The expected values for all the categories is :

$E_i =\frac{150}{3}=50$

And then the statistic would be given by:

$\chi^2 = \frac{(40-50)^2}{50}+\frac{(60-50)^2}{50}+\frac{(50-50)^2}{50}=4$

And the best option would be:

b. 4

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3 years ago

A principal of $5,360.00 is placed in an account that earns 3.5% interest. If the interest is compounded annually, how much mone

Snezhnost [94]

Answer:

answer is $5361.147523

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4 years ago