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Y_Kistochka [10]

3 years ago

15

Find the area of the shaded region where s 18. Round your answer to two decimal places.

1 answer:

lisabon 2012 [21]3 years ago

7 0

Answer:

B

Step-by-step explanation:

17.3&

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Sarah have 40 nickels in her bank her dad gave her 44 more nickels how many nickels does Sarah have now

Evgen [1.6K]

Answer:

She now has 84 nickles. :)

Step-by-step explanation:

40+44=84

3 0

3 years ago

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In two or three sentences explain how you would solve for the real solutions of the following equation: please help asap!!

g100num [7]

the real solutions for the equation $x^{3}=-64$ are -

$x=4,2+-2\sqrt{3i}$

Step-by-step explanation:

$x^{3}$ = $- 64$

$x^{3} +64$ = 0

We can write 64 as $4^{3}$

$x^{3}$ + $4^{3}$ = 0

using the identity ( $x^{3}+y^{3} = (x+y)(x^{2} -xy+y^{2} )$ )

we get,

= $(x+4) (x^{2} -x*4+4^{2} )$

= $(x+4)(x^{2} -4x+16)$ ....................(1)

solving the quadratic equation ,

$x^{2} -4x+16$ =0

solutions of this quadratic equation can be obtained by

$x=-b +- \sqrt{b^{2}-4ac } /2a$

let use y for factors

$x=-(-4x)+-\sqrt{(-4x^{2} )-4*x^{2} *16} / 2*x^{2}$

$x=4x+-\sqrt{16x^{2} -64x^{2} } /2x^{2}$

$x=4+-\sqrt{16-64}/2$

$x=4+-4\sqrt{3i} /2$

<u /> $x=2+-2\sqrt{3i}$ ..................(2)

from the equation 1 we have,

$x-4=0$

which gives solution $x=4$

and from equation 2 we got $x=2+-2\sqrt{3i}$

so the real solutions for the equation $x^{3}=-64$ are -

$x=4,2+-2\sqrt{3i}$

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3 years ago

Why did large numbers of Africans migrate to the Americas? A. Countries competed over resources during the Age of Exploration, a

Marianna [84]

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THE PROOF IS IN YOUR BIBLE

Step-by-step explanation:

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3 years ago

mrs Singh bought 9 folders 9 notebooks. The cost of each folder is $2.50 and the cost of each notebook is $4 write two equivalen

lana66690 [7]

First you add250+250 then you add 9+9 or you could do250×9 2 times then add them together . never mind just do 250×9 2times and that will eqaul 2,250 then add 2250+ 2250and you got the answer and the answer is 4500

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3 years ago

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A ladder leaning against a wall forms a triangle and exterior angles with the wall and the ground. What are the measures of the

Paha777 [63]

11x° is interior angle of ladder to the ground
and 7X° is interior angle of ladder to the wall

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