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4 years ago

Find the area of the shape attached

Mathematics

1 answer:

gavmur [86]4 years ago

4 0

Answer:

Radius x radius x 3.14 / 2 = area of semicircle

5 x 5 x 3.14 = 78.5

don't divide because there is two semicircle

22-10=12

12 x 10 = 120

120 + 78.5 = 198.5 cm squared

Step-by-step explanation:

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How to find imaginary zeros anf real zeros of F(x)=-4x^5-8x^3+12x

Fofino [41]

Answer:

$x=\{0, -1, 1, -i\sqrt{3}, i\sqrt{3}\}$

Step-by-step explanation:

We are given the function:

$f(x)=-4x^5-8x^3+12x$

And we want to finds its zeros.

Therefore:

$0=-4x^5-8x^3+12x$

Firstly, we can divide everything by -4:

$0=x^5+2x^3-3x$

Factor out an x:

$0=x(x^4+2x^2-3)$

This is in quadratic form. For simplicity, we can let:

$u=x^2$

Then by substitution:

$0=x(u^2+2u-3)$

Factor:

$0=x(u+3)(u-1)$

Substitute back:

$0=x(x^2+3)(x^2-1)$

By the Zero Product Property:

$x=0\text{ and } x^2+3=0\text{ and } x^2-1=0$

Solving for each case:

$x=0\text{ and } x=\pm\sqrt{-3}\text{ and } x=\pm\sqrt{1}$

Therefore, our real and complex zeros are:

$x=\{0, -1, 1, -i\sqrt{3}, i\sqrt{3}\}$

4 0

3 years ago

Use the row of numbers shown below to generate 12 random numbers between 01 and 99. 11097, 51877, 41665, 78465, 79932, 54899, 72

Nikolay [14]

The suitable numbers are:

11 09 75 18 77 41 66 57 84 65 79 93

Step-by-step explanation:

The random number line is used to generate random numbers between the given range

As the numbers have to be chosen between 01 to 99, two digit pairs will be made.

Every time a pair is chosen, it is checked whether it falls in the range or not. If it falls in the range, it is selected otherwise the number is ignored.

So,

Given random number line is:

11097, 51877, 41665, 78465, 79932, 54899, 72970, 71789

The pairs will be:

11 09 75 18 77 41 66 57 84 65 79 93 25 48 99 72 97 07 17 89

Hence,

The suitable numbers are:

11 09 75 18 77 41 66 57 84 65 79 93

Keywords: Random number line, statistics

Learn more about random number line at:

#LearnwithBrainly

8 0

3 years ago

Consider the expression below.

borishaifa [10]

Answer:

Step-by-step explanation: its a coeficcient because itd a number that has a variable along with it

7 0

4 years ago

Read 2 more answers

A set of data has a normal distribution with a mean of 46 and a standard deviation of 7. Find the percent of data within the fol

kvasek [131]

Answer:

50%

the mean (46) marks the halfway point, so over the mean is 50% and under the mean is 50%

7 0

2 years ago

PLEASE HELP I WILL MARK BRAINLIEST DUE IN 5 MINUTES<br>look at attachment

Mumz [18]

Answer:

A: -9a

Step-by-step explanation:

Hope that helps!

5 0

3 years ago