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2 years ago

Solve the expression 8 x 5 − 12 x one third + 5 using PEMDAS

Mathematics

1 answer:

skelet666 [1.2K]2 years ago

8 0

Answer:41

Step-by-step explanation: Multiplication and division goes first so 8x5=40 12x1/3=4 so 40-4+5 and you do addition and subtraction left to right 40-4=36+5=41

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Step-by-step explanation:

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If two cylinders have the same radius, but one has a height two times larger

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The volume of the large cylinder will be twice the volume of the small cylinder.

<u>Step-by-step explanation:</u>

Let the radius of the cylinder be 'r'

Let the height of the cylinder be'h'

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Step-by-step explanation:

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2 years ago

A lamp post with a height of 12 ft casts a shadow of 6 ft. A fire hydrant near it casts a shadow that is 1.5 ft long. How tall i

alex41 [277]

Answer:

3ft

Step-by-step explanation:

We are given that

Height of lamp, h=12ft

Height of shadow, l=6ft

Height of shadow of hydrant, l'=1.5ft

Let height of hydrant=h'

We have to find the height of fire hydrant.

All right triangles are similar

When two triangles are similar then, the ratio of their corresponding sides are equal.

Using the property

$\frac{h}{h'}=\frac{l}{l'}$

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$h'=\frac{12\times 1.5}{6}$

$h'=3$ ft

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3 years ago