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4 years ago

What angle measures 3 degree

Mathematics

2 answers:

trasher [3.6K]4 years ago

7 0

Answer:

Acute angle

Step-by-step explanation:

Angles that measures less than 90 is acute angle

Zina [86]4 years ago

7 0

Answer:

An acute angle

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The old man walked two over three of a mile in 1/2 of an hour what is the rate in miles per hour

bogdanovich [222]

Answer:

Step-by-step explanation:

6 0

3 years ago

Happy Hound charged $18 for 2 hours of doggie daycare and $45 for 5 hours. What is the unit rate? Show your work.

Cerrena [4.2K]

Answer:

18/2 = 9

45/5= 9

9=9

9= unit rate

$9 per hour

4 0

4 years ago

The study report gives a scatterplot for a random sample of penguins. The dive duration is measured in minutes and depth (x valu

erastova [34]

Answer:

a) y-intercept = 2.59

b) Therefore, we can say that when the penguin is not diving, the mean dive duration is 2.59 minutes.

Step-by-step explanation:

(a) What is the y-intercept of the regression line? (Use 2 decimal places)

The given regression equation is

y = 2.59 + 0.0126x

The standard form of the regression equation is given by

y = a + bx

Where a is the y-intercept of the regression line and b is the slope of the regression line.

Comparing the given equation with the standard form,

y-intercept = 2.59

(b) What is the correct interpretation of the y-intercept?

The y-intercept is the value we get when x = 0

y = 2.59 + 0.0126(0)

y = 2.59 + 0

y = 2.59 minutes

Therefore, we can say that when the penguin is not diving, the mean dive duration is 2.59 minutes.

7 0

3 years ago

Fifty percent of households say they would feel secure if they had $50,000 in savings. you randomly select 8 households and ask

Setler [38]

Step-by-step Answer:

"Fifty percent of households say they would feel secure if they had $50,000 in savings." => population mean for satisfaction is 0.50.

N = number of household asked.

x = number of satisfied households.

Use binomial probability,

B(x,N,p) = C(N,x)*(p^x)*(1-p)^(N-x)

For 8 households and 3 questions (a), (b), and (c), we can tabulate all values of x and extract answers from there.

x B(x,8,0.5) cumulative probability

0 0.00390625 0.00390625

1 0.03125 0.03515625

2 0.109375 0.14453125

3 0.21875 0.36328125

4 0.2734375 0.63671875

5 0.21875 0.85546875

6 0.109375 0.96484375

7 0.03125 0.99609375

8 0.00390625 1.0

From the table, we see clearly that

(a) probability P(x=5)=0.2188

(b) probability P(x>5)=1-0.8555=0.1445

Note: All answers above have been rounded to the nearest 4 places of decimals.

5 0

3 years ago

Can I get some help on this one and if you could show its done I would appreciate it. Thank you.

Andreyy89

<h3>Answer: 5.5 which is choice B</h3>

Have a look at the diagram I posted below. I marked on your image to add in another angle. This angle is also 20 degrees because of congruent alternate interior angles (horizontal lines are parallel). This angle I add in is the reference angle of the triangle

opposite the reference angle is the vertical side x

adjacent to the reference angle is the horizontal side 15

We'll use the tangent rule. Make sure your calculator is in degree mode.

tan(angle) = opposite/adjacent

tan(20) = x/15

15*tan(20) = x <<-- multiply both sides by 15

x = 15*tan(20)

x = 5.45955 <<--- use calculator; this is approximate

x = 5.5 <<--- round to one decimal place

5 0

3 years ago