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2 years ago

A 3cm×10cm rectangle sits inside a circle with radius of 12. Find the area of the shaded region

Mathematics

1 answer:

kolezko [41]2 years ago

6 0

Answer:

422.4cm²

Step-by-step explanation:

area of circle is pi x 12² which is 144 pi

144pi subtract 30 is 422.4

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Find the equation of the axis of symmetry for<br> the parabola y=5x2

Dima020 [189]

Answer:

X=0

Step-by-step explanation:

3 0

3 years ago

Complete the chart to find the mean, variance, and standard deviation. Remember to use commas and round numbers to the nearest t

vitfil [10]

Answer: The mean of the data is 433.75, variance of the data is 99667.19 and the standard deviation of the data is 315.7011.

Explanation:

The given data is 900, 35, 500 and 300.

The number of observation is 4.

Formula of mean is,

$\text{Mean}=\frac{\text{Sum of observations}}{\text{Number of observations}}$

$\bar{X}=\frac{900+35+50+300}{4} =433.75$

The formula of variance is given below,

$\sigma^2=\frac{1}{n}\sum{(X-\bar{X})^2}$

$\sigma^2=\frac{398668.75}{4}$

$\sigma^2=99667.19$

The variance of the data is 99667.19

$\sigma=\sqrt{99667.19}$

$\sigma=315.7011$

The standard deviation of the data is 315.7011.

The other information or values of given chart is shown in the attached table.

8 0

2 years ago

Read 2 more answers

Is -2-x the same as -2x?

garik1379 [7]

Answer:

yes

Step-by-step explanation:

the variable cannot have a negative symbol, unless it has no number.

4 0

2 years ago

If f(x)=square root 4x+9+2, which inequality can be used to find the domain of f(x)?

jenyasd209 [6]

we have

$f(x)=\sqrt{4x+9} +2$

we know that

The radicand must be greater than or equal to zero

$4x+9 \geq0 \\ 4x\geq -9 \\x\geq -\frac{9}{4} \\ x\geq -2.25$

the domain is is the interval--------> [-2.25,∞)

therefore

<u>the answer is</u>

$4x+9 \geq0$

8 0

2 years ago

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The shapes shown are stored into groups according to the number of line of symmery move the rest of the shapes to the correct gr

VARVARA [1.3K]

Answer:

can you show the shapes

Step-by-step explanation:

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2 years ago