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Anna35 [415]
2 years ago
7

A circle with radius of 1 cm sits inside a 11 cm x 12 cm rectangle. What is the area of the shaded region? Round your final answ

er to the nearest hundredth. 11 cm FL ve NE . 1 cm SY 12 cm ba it M table IEEE A EN . HE . sweet CHE HE ME sar. BENE NE LE hele WEB GER W LED 2 of 30 po a la WE Intro to subtracting meative​
Mathematics
1 answer:
charle [14.2K]2 years ago
5 0

Answer:

sry I just wanted the points I'm in middle school so I don't know this stuff either but can you give free brainlyest I'm soo close to my next rank I'd really appreciate it if you would

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Fraction calculator 66 1/2 - 43=
zhuklara [117]

Answer:

\frac{47}{2}

Step-by-step explanation:

66\frac{1}{2} - 43 = 47/2

6 0
3 years ago
Read 2 more answers
Which of the choices below is not a possible correlation coefficient?
fiasKO [112]

Answer:

The condition for r is the following:

-1 \leq r \leq 1

And for this case if we analyze the options the only impossible value is given by:

1.0528

Because this value is higher than 1 and not satisfy the general limits for r

Step-by-step explanation:

The correlation coefficient is a measure of dispersion and is a value between -1 and 1, and is defined as:

r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}

The condition for r is the following:

-1 \leq r \leq 1

And for this case if we analyze the options the only impossible value is given by:

1.0528

Because this value is higher than 1 and not satisfy the general limits for r

8 0
3 years ago
What is the slope of the line that passes through the points (-2, 2), and (-4, -2)? - 2 -2
dusya [7]

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

We have the points (-2, 2) and (-4, -2). Substitute:

m=\dfrac{-2-2}{-4-(-2)}=\dfrac{-4}{-2}=2

<h3>Answer: the slope = 2</h3>
4 0
3 years ago
How heavy a load (pounds) is needed to pull apart pieces of wood 4 inches long and 1.5 inches square? Here are data from student
statuscvo [17]

Answer:

a. (29526.192 , 32155.808)

b. (29673.9301 , 32008.0699)

Step-by-step explanation:

on calculation, we find that sample mean = 30843 and sample standard deviation = 3018.504, and n=20

1)

Sample Mean = 30841

SD = 3000

Sample Size (n) = 20

Standard Error (SE) = SD/root(n) = 670.8204

alpha (a) = 1 - 0.95 = 0.05

z critical value for 95% confidence interval:

z(a/2) = z(0.025) = 1.96

Margin of Error (ME) = z(a/2) x SE = 1314.808

95% confidence interval is given by:

Sample Mean +/- (Margin of Error) = 30841 +/- 1314.808

= (29526.192 , 32155.808)

2)when std dev of population is not known, we use sample's, but we have to use t instead of z

Sample Mean = 30841

SD = 3018.504

Sample Size (n) = 20

Standard Error (SE) = SD/root(n) = 674.958

alpha (a) = 1-0.9 = 0.1

we use t-distribution as population standard deviation is unknown

t(a/2, n-1 ) = 1.7291

Margin of Error (ME) = t(a/2,n-1)x SE = 1167.0699

90% confidence interval is given by:

Sample Mean +/- (Margin of Error)

30841 +/- 1167.0699 = (29673.9301 , 32008.0699)

4 0
3 years ago
What is the degress for a half of of circle if it cut in 1/3
11111nata11111 [884]
Half of a circle

1 circle=360
1/2 circle=360/2=180

1/2 circle cut into 1/3
180 times 1/3=60
60 degreees
6 0
3 years ago
Read 2 more answers
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