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horrorfan [7]
3 years ago
6

HEY HELP WAYYY OVERDUE NEED IN 10 MINS PLEASE ANSWER CHOICES ARE : 29.76 91.5 180 188.93 223.07

Mathematics
2 answers:
Zigmanuir [339]3 years ago
7 0

Answer:

I need use this 29.76 91.5 180 188.93 223.07 for what? Can you explain me what I need to do? please O_O

Step-by-step explanation:

PIT_PIT [208]3 years ago
3 0

Answer:

223.07

Step-by-step explanation:

Hey There!

So the first step of this problem is to find the equation for the area of a parallelogram and the area of a circle

The area of a parallelogram is equal to bh

base x height

the base is 20 and the height is 15

20x15=300

Now we want to find the equation for area of a circle

to find the area of the circle we use the formula A = pi xr^{2}

A = π x radius²

the radius is the diameter divide by 2

14/2=7 so the radius is 7

now we just plug 7 into the area of a circle formula

7²=49

49x3.14=153.86

But because it is a semi circle we divide by 2

153.86/2=76.93

Now to find the area of the object we subtract 76.93 from 300

300-76.93=223.07

Therefore the area of that object is 223.07

<em>The1AndOnlyMark</em>

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Write the quadratic equation whose roots are 3 and -1, and whose leading coefficient is 5.
Assoli18 [71]

Answer:

5x² - 10x - 15 = 0

Step-by-step explanation:

Given that the roots are x = 3 and x = - 1, then the factors are

(x - 3) and (x + 1) and the quadratic is the product of the factors, that is

f(x) = a(x - 3)(x + 1) ← a is a multiplier

Here a = 5, thus

f(x) = 5(x - 3)(x + 1) ← expand factors using FOIL

     = 5(x² - 2x - 3) ← distribute parenthesis by 5

     = 5x² - 10x - 15

Thus equation is

5x² - 10x - 15 = 0

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Step-by-step explanation:

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Answer:

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