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1 year ago

Can somebody just give me the answer plz and if you know how to do geometry drop your insta along with the answer pleaseee

Mathematics

2 answers:

SSSSS [86.1K]1 year ago

8 0

Answer:

x = 40

Step-by-step explanation:

3x + (x+20) = 180

bonufazy [111]1 year ago

3 0

HEHEHEHEHEHE GET TEOLLED

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Can x in f(x) be replaced by another letter? For example f(a);Would that be the same thing?

Murljashka [212]

Answer:

Yes

Step-by-step explanation:

X is just an unknown variable which can be substituted as another variating condition. I.E Function of x can be written as Function of a. If no other condition is present.

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2 years ago

Read 2 more answers

A local car dealership sells Buicks and Hondas. The following data shows the number of buyers this month according to the brand

Lina20 [59]

Answer:

16%

Step-by-step explanation:

The data provided on brand purchased by age group is.

$\begin{array}{ccc}Age&Buick&Honda\\Under\ 40&6&17\\40\ or\ older&19&8\end{array}$

A total of 50 cars were sold this month.

Since the number of buyers 40 years or older that purchased a Honda is 8, the percentage is:

$P=\frac{8}{50}=0.16=16\%$

16% of buyers were 40 years or older and purchased a Honda.

8 0

2 years ago

Which of the following are true for the number 8.5? Select all that apply

OLga [1]

The answer should be A and D

7 0

2 years ago

Among 420 randomly selected employees at a company, the mean number of hours of overtime worked per month is 10 hours and the st

kari74 [83]

The margin of error of the random selection is 0.20

The given parameters are:

$n = 420$ --- the sample size

$\sigma = 1.6$ --- the standard deviation

$\bar x = 10$ --- the mean

$\alpha = 99\%$ --- the confidence level.

The margin of error (E) is calculated as follows:

$E = z \times \sqrt{\frac{\sigma^2}{n}}$

So, we have:

$E = z \times \sqrt{\frac{1.6^2}{420}}$

$E = z \times \sqrt{\frac{2.56}{420}}$

The z-value for 99% confidence level is 2.576.

Substitute 2.576 for z

$E = 2.576 \times \sqrt{\frac{2.56}{420}}$

$E = 2.576 \times \sqrt{0.006095}$

Take square roots

$E = 2.576 \times 0.0781$

Multiply

$E = 0.2012$

Approximate

$E = 0.20$

Hence, the margin of error is 0.20