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Contact [7]
2 years ago
11

Factorise the following 27 x minus 9 y​

Mathematics
1 answer:
dangina [55]2 years ago
4 0

Answer:

27x-9y

3(9x-3y)

Step-by-step explanation:

please mark me as brainlest

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What is the surface area of cone below Diameter AB=21 and distance from B to C =36
Vesnalui [34]

Answer:

1533.88261311522

Step-by-step explanation:

<em>Let r be the radius of the (base/circle)</em>

<em>and  L be the slant height of the cone</em>

<em>Formula ………………………………………………………………………………………………………</em>

The surface area of a cone = the (curved/lateral) surface area +  the base

                                             =\pi r^{2}\ \ \ +\ \ \ \pi Lr

=========================================

r=\frac{21}{2} =10.5

L = BC = 36

\text{surface area} =\pi \left( 10.5\right)^{2}  +\pi \times 36\times \left( 10.5\right)

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Three coins are flipped,what is the Probability of getting one HEAD and two TAILs?
san4es73 [151]
The probability of getting at most 2 tails is 7/8
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3 years ago
In quadrilateral ABCD, AD is congruent to BC, and AD is parallel to BC. Andre has written a
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Answer:

AD is Congruent to BC and it's given, (given just means that it was already said or stated, and you don't need to do the work to find it) Angle DAC would be congruent to angle BAC (if that doesn't work, rearrange them to look like angle CAB). AC would be congruent to DB. Triangle ADC would be congruent to triangle BCD by (since i don't know exactly which way the letters are arranged is would either be SAS or SSA) and that's because you know two of the sides are congruent to each other and one angle.

I tried hard to sketch out what the shape looked like based on the information given, and that's because I need a visual of what the shape looks like. Sorry, this took so long to answer.

5 0
9 months ago
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