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cupoosta [38]
1 year ago
14

Find the sum 70.6+74.02+121.985=​

Mathematics
1 answer:
vova2212 [387]1 year ago
7 0

266.605 is the answer.

Step-by-step explanation:

70.6 + 74.02 + 121.985 = 266.605

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const2013 [10]

Hey buddy I am here to help!

Yes these r similar!

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Plz mark me brainliest!

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3 years ago
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Solve for c<br> 4(3+c)+c=c+4
Sonja [21]

Answer:

c = -2

Step-by-step explanation:

Given equation is :

4(3+c)+c=c+4

12 + 4c + c = c + 4

12 + 4c = 4                    [dividing by 4]

3 + c = 1                         [adding and subtracting 3]

c = -2

6 0
3 years ago
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Can you PLEASE write a paragraph of how tragicomic functions work PLEASE!!!
iogann1982 [59]
They are used for making the sides of a triangle into a ratio. Sine is opposite of the angle divide by the hypotenuse, cosine is adjacent divided by the hypotenuse, and tangent is the opposite divided by the adjacent. Sine is the y-component, cosine is the x-component, and tangent is the ratio of sine/cosine or can also be considered the slope.
7 0
3 years ago
Which of the following are equivalent to 140%?<br><br> 0.14<br> 5/7<br> 1 2/5<br> 1.4
Alika [10]
1.4

To make a percent a decimal, divide it by 100.

140 ÷ 100

= 1.4


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5 0
3 years ago
The average height of students at UH from an SRS of 12 students gave a standard deviation of 2.5 feet. Construct a 95% confidenc
Vanyuwa [196]

Answer:

c. [1.771;4.245] feet

Step-by-step explanation:

Hello!

The variable of interest is

X: height of a student at UH

X~N(μ;σ²)

You have to estimate the population standard deviation using a 95% confidence interval.

The statistic to use for the interval is a student Chi-Square with n-1 degrees of freedom. First you have to calculate the CI for the population variance:

[\frac{(n-1)S^2}{X^2_{n-1;1-\alpha /2}} ;\frac{(n-1)S^2}{X^2_{n-1;\alpha /2}} ]

X^2_{n-1;1-\alpha /2}= X^2_{11;0.975}= 21.920

X^2_{n-1;\alpha /2}= X^2_{11;0.025}= 3.816

n=12

S= 2.5

[\frac{11*6.25}{21.920} ;\frac{11*6.25}{3.816}} ]

[3.136; 18.016] feet²

Then you calculate the square root of both limits to get the CI for the population standard deviation:

[√3.136; √18.016]

[1.771;4.245] feet

I hope this helps!

4 0
3 years ago
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