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3 years ago

13

Help anyone can help me do the question,I will mark brainlest.

1 answer:

stiks02 [169]3 years ago

3 0

Answer:

Step-by-step explanation:

S=pi*R^2=(area of the sector)*(360/angle of AOB)

so 22/7*9^2=99*360/angle of AOB

-> AOB=140

perimeter of circle: 2*pi*R

permiter of sector : 2*pi*140/360*R+ 2R=22+9*2=40

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Which expressions below are equivalent to –3(0.15 – 0.2 + 0.25p) ? Please help, thanks 0.15 – 0.75p –0.45 – 0.6 + 0.75p –3(–0.05

user100 [1]

Given:

The expression is

$-3(0.15-0.2+0.25p)$

To find:

The equivalent expression.

Solution:

We have,

$-3(0.15-0.2+0.25p)$

It can be written as

$=-3(-0.05+0.25p)$

So, option C is correct.

$=-3(-0.05)+(-3)(0.25p)$

$=0.15-0.75p$

So, option A is correct.

The given expression can be written as

$=-3(0.15)+(-3)(-0.2)+(-3)(0.25p)$

So, option D is incorrect.

$=-0.45+0.6-0.75p$

So, option B is incorrect.

Therefore, the correct options are A and C.

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