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brilliants [131]
3 years ago
15

Which of thses is our number system based on A. 2s B. 10s C. 20s D. 100s

Mathematics
1 answer:
Nikitich [7]3 years ago
7 0
C. 20s!!!!!!!!!!!!!!!!!!!
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Find the value of x and y. WILL MARK BRAINLIEST
g100num [7]

Answer:

x = 30

y = 15

Step-by-step explanation:

<u><em>All the angles are </em></u><u><em>90°</em></u><u><em>, so set 6y and 3x equal to 90, like so:</em></u>

6y = 90

<u><em>Divide both sides by 6:</em></u>

y = 15

<u>Solving for x:</u>

3x = 90

<em><u>Divide both sides by 3:</u></em>

x = 30

6 0
3 years ago
Read 2 more answers
Can someone help me with this?
garri49 [273]
The answer going to be -4
4 0
3 years ago
I have a math problem that is stumping me and other people. Do you always multiple before dividing or do you work left to right?
swat32
It is customary to work left to right, however that is not a rule.  In order of operations, the actual rule is that multiplication/division occurs after parentheses, exponents, and before addition/subtraction...

PEMDAS  order of operations

Parentheses, exponents, mutiplication/division, addition/subtraction.
6 0
3 years ago
What is the mode for the data set? 59, 57, 56, 50, 58, 51, 54, 59, 55, 52, 53.
zavuch27 [327]

Mode means the number that appears most often in the data. Below I provided a tally of how many each of the numbers appear

59: twice

57: once

56: once

50: once

58: once

51: once

54: once

59: once

55: once

52; once

53: once

As you can see 59 appears the most often, being listed twice in the data set, and is therefore the mode

Hope this helped!

6 0
2 years ago
Read 2 more answers
5. A Ferris wheel at an amusement park measures 16m in diameter. It makes 3 rotations
galina1969 [7]

Following are the responses to the given points:

For point a:

Diameter\ (d)= 16\ m\\\\

Calculating the 3 rotations for every minute:

Calculating time for completing 1 rotation:

1\ rotation=\frac{60}{3}= 20\ second\\\\period=20 \ second\\\\

The standard form of the equation of the sine and cosine function is:

y=A \sin \{ B(x-c)\} +D\\\\y=A \cos \{ B(x-c)\} +D\\\\

Calculating the Amplitue:

A=\frac{max-min}{2}=\frac{17-1}{2}=\frac{16}{2}=8\\\\Period=\frac{2\pi}{B}\\\\20=\frac{2\pi}{B}\\\\B=\frac{2\pi}{20}\\\\B=\frac{\pi}{10}\\\\

Calculating the phase shift:

for \sin function: c=5

for \cos function: c=10

Calculating the vertical shift:

\to D=\frac{max+ min }{2}=\frac{17+ 1}{2}=\frac{18}{2}=9\\\\y=8 \sin \{ \frac{\pi}{10}(t-5)\} +9\\\\y=8 \cos \{ \frac{\pi}{10}(t-10)\} +9\\\\

For point b:

y> 12\ m\\\\12=8 \sin \{ \frac{\pi}{10}(t-5)\} +9\\\\12-9=8 \sin \{ \frac{\pi}{10}(t-5)\} \\\\3=8 \sin \{ \frac{\pi}{10}(t-5)\} \\\\\frac{3}{8}=\sin \{ \frac{\pi}{10}(t-5)\} \\\\\sin^{-1}\frac{3}{8}=\frac{\pi}{10}(t-5) \\\\\frac{\pi}{10} (0.38439677)=(t-5) \\\\1.22357+5=t \\\\t=6.22357\ second\\\\t=6.22\ second\\\\\sin^{-1}\frac{3}{8}=\frac{\pi}{10}(t-5) \\\\\frac{\pi}{10} (2.7571961)=(t-5) \\\\t=8.7764+5\\\\t=13.78\ second\\\\t_2-t_1=13.7764-6.22357= 7.55283\approx 7.55\ second \\\\

Learn more:

Rotation: brainly.in/question/39626227

5 0
3 years ago
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