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3 years ago

Is 3.113x10^22 smaller or bigger than 2.113x10^23

1 answer:

7 0

<span>2.113x10^23 is bigger since it has one more 'unit' (i forgot the term for ones, tens, hundreds, and so on) compared to 3.113 x 10^22</span>

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If sinA = -4/5 and cosB = 12/13, where A and B are both in Quadrant IV, what is tan(A-B)?

Kisachek [45]

Answer:

4-5 12 -13

Step-by-step explanation:

3 0

3 years ago

Find the central angle of a sector of a circle of the area of the sector and the area of the circle are in the proportion of 3:5

abruzzese [7]

Answer:

$\theta = 216$

Step-by-step explanation:

Given

Area of Sector : Area of Circle = 3 : 5

Required

Determine the central angle

The question implies that

$\frac{Area_{sector}}{Area_{circle}} = \frac{3}{5}$

Multiply both sides by 5

$5 * \frac{Area_{sector}}{Area_{circle}} = \frac{3}{5} * 5$

$5 * \frac{Area_{sector}}{Area_{circle}} = 3$

Multiply both sides by Area{circle}

$5 * \frac{Area_{sector}}{Area_{circle}} * Area_{circle} = 3 * Area_{circle}$

$5 * {Area_{sector} = 3 * Area_{circle}$

Substitute the areas of sector and circle with their respective formulas;

$Area_{sector} =\frac{\theta}{360} * \pi r^2$

$Area_{circle} = \pi r^2$

So, we have

$5 * \frac{\theta}{360} * \pi r^2 = 3 * \pi r^2$

Divide both sides by $\pi r^2$

$5 * \frac{\theta}{360} * \frac{ \pi r^2}{\pi r^2} = 3 * \frac{\pi r^2}{\pi r^2}$

$5 * \frac{\theta}{360} = 3$

Multiply both sides by 360

$360 * 5 * \frac{\theta}{360} = 3 * 360$

$5 * \theta = 3 * 360$

Divide both sides by 5

$\frac{5 * \theta}{5} = \frac{3 * 360}{5}$

$\theta = \frac{3 * 360}{5}$

$\theta = \frac{1080}{5}$

$\theta = 216$

Hence, the central angle is 216 degrees

3 0

3 years ago

Factorise: 25x²-20x+4

Nutka1998 [239]

(5x - 2)²

Step-by-step explanation:

25x² - 20 + 4

(5x - 2)(5x - 2)

(5x - 2)²

4 0

3 years ago

Read 2 more answers

What is the average of these amounts? $190,258.50;$152,698,00;$122,753.00;$220,523.00;$231,951.00

inysia [295]

Answer:

$15213.00

Step-by-step explanation:

$190

258.50

$152

698.00

$122 I hope im right thanks

3 0

3 years ago

Read 2 more answers

What subtraction sentence does this show?

harina [27]

Ummmmmmmmmmmmm
Mm A is correct I think. The question was unclear but A is the only correct function

5 0

2 years ago