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2 years ago

Which statement is true about the angle bisectors of a triangle?

Mathematics

1 answer:

-BARSIC- [3]2 years ago

8 0

Answer:

i think its uhhhh.... I think its a carrot

Step-by-step explanation: 5 star rating if you think beetle juice is the goat

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Colby made a scale model of the Washington Monument. The monument has an actual height of 554 feet. Colby’s model used a scale i

garik1379 [7]

Answer:

500043004030405.3

Step-by-step explanation:

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2 years ago

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dybincka [34]

Answer:

I think its c bc (PEMDAS) shoes multiplication comes first

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sweet-ann [11.9K]

Answer:

Question 1a. i) $x=1.8m$

Question 1a. ii) $Volume=27.6m^3$

Question 1b) $Volume=65.9m^3$

Explanation:

Question 1 a. i) Find the value of x.

$tan(\theta )=\dfrac{opposite\text{ }leg}{adjacent\text{ }leg}$

For the smalll triangle you can write:

$tan(\theta )=\dfrac{x}{1m}$

For tthe big triangle:

$tan(\theta )=\dfrac{x+2.7m}{2.5m}$

Substitute:

$\dfrac{x}{1m}=\dfrac{x+2.7m}{2.5m}$

Solve for x:

$2.5x=x+2.7m\\\\2.5x-x=2.7m\\\\1.5x=2.7m\\\\x=2.7m/1.5\\\\x=1.8m$

Question 1a ii) Find the volume of the frustrum

Find the volume of a cone with height = 2.7m + 1.8m = 4.5m, and radius = 2.5m

Formula:

$Volume=(1/3)\pi \times radius^2\times height$

Substitute:

$Volume=(1/3)\pi \times (2.5m)^2\times 4.5m=9.375\pi m^3$

Find the volume of a cone with heigth = 1.8m and radius = 1m

$Volume=(1/3)\pi \times (1m)^2\times 1.8m=0.6\pi m^3$

Subtract the volume of the small cone from the volume of the big cone

$Volume\text{ }of\text{ }frustrum=9.375\pi m^3-0.6\pi m^3=8.775\pi m^3\approx 27.6m^3$

Question 1b. Calculate the volume of the bin

i) Upper frustrum

This is the same frustrum from the equation of above, thus ist volume is 27.6m³.

ii) Lower frustrum

$\dfrac{x}{2.0m}=\dfrac{x+2.4m}{2.5m}$

$2.5x=2(x+2.4m)\\\\2.5x=2x+4.8m\\\\0.5x=4.8m\\\\x=9.6m$

$Volume=(1/3)\pi \times (2.5m)^2\times (9.6m+2.4m)-(2.0m)^2\times (9.6m)$

$Volume=38.3m^3$

iii) Add the volume of the two frustrums

$Volume=27.6m^3+38.3m^3=65.9m^3$

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2 years ago

Simply the expression below using order of operations (5^2 -6^2)+5(8-12 ÷3)

Kamila [148]

Answer:

Step-by-step explanation:

The first operation is what inside the braces

1-first comes the multiple and the division

2- then the + and the -

1- (25-36)+5(8-4)

2- (25-36) + 5×4

3- (-11) + 20 =9

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Simplify: 12/10 12 132 1320 120

tia_tia [17]

Answer:

12/10 simplified is 1 2/10 or 1 1/5

Step-by-step explanation:

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