2 years ago

Would this be 192? if not can someone please explain how to do it?

Mathematics

1 answer:

Alinara [238K]2 years ago

5 0

Answer:

For anything you have to ask question, right? How can someone understand if you just show the figure

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In triangle ABC, AB = 11 cm, BC = 9 cm and CA = 10 cm. Find the area of triangle ABC.

max2010maxim [7]

Answer:

Area = 42.43 square cm

Step-by-step explanation:

Using Heron's Formula :

$Area = \sqrt{s\times (s-a) \times (s-b) \times(s -c)} \ , \ where \ s \ =\ \frac{a+ b+ c}{2}$

Find Area :

$s = \frac{11 + 9 + 10 }{2} = \frac{30}{2} = 15$

$Area = \sqrt{15 \times ( 15 - 11 ) \times { (15 - 9 ) \times ( 15 -10)}\\\\$

$= \sqrt{15 \times 4 \times 6 \times 5}\\\\=\sqrt{1800}$

$= 42 . 43 \ cm^2$

7 0

3 years ago

3x = 0.5.2 x = -6 or x = 0 x = -4 or x = 3 x = -2 or x = 1.5 x = 0 or x = 6

tiny-mole [99]

that is unsolvable coz no double decimal can be used

7 0

3 years ago

Solve for k: k + 6 > -20

FrozenT [24]

Answer:

k > -26

Step-by-step explanation:

To isolate the k, you subtract 6 from both sides to get k < -26.

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3 years ago

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What is the value of x in the equation below? 6 (x minus 8) = 72

9966 [12]

Answer:

$x = 20$

Step-by-step explanation:

$6(x - 8) = 72 \\ 6x - 48 = 72 \\ 6x = 120 \\ x = 20$

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3 years ago

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PLEASE ANSWER What is a ratio?

Grace [21]

A ratio is the quantitative relation between two amounts showing the number of times one value contains or is contained within the other.

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3 years ago