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2 years ago

How many lines of symmetry does the picture have? A. 3 B. 2 C. 1 D. 0

Mathematics

1 answer:

brilliants [131]2 years ago

3 0

the answers is D cuz there is no line in the picture

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100 pts

lapo4ka [179]

It’s not 100 points it’s only five points

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3 years ago

Write a number that is greater than 714,587

TEA [102]

A number that is greater than 714,587 is 1,000,000

5 0

3 years ago

Read 2 more answers

Help me plz this is hard

cricket20 [7]

you first use distributive property for the multiplication

[(2*4x)-(2*11)]+9=19

8x-22+9=19

Then, you need to leave the variable alone moving all the other numbers with the opposite operation (addition to substraction, substraction to addition, multiplication to division, division to multiplication)

8x=19+22-9

8x=(19+22)-9

8x=41-9

8x=32

Then as 8 and x are multiplying you pass it dividing

x=32/8

x=4

3 0

3 years ago

Show that cos(3x) = cos3(x) − 3 sin2(x)cos(x). (Hint: Use cos(2x) = cos2(x) − sin2(x) and the cosine sum

otez555 [7]

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

To prove:

$\cos 3x=\cos^3x-3\sin^2 x\cos x$

Identities used:

$\cos(A+B)=\cos A\cos B+\sin A\sin B$ ......(1)

$\sin 2A=2\sin A\cos A$ ........(2)

$\cos 2A=\cos^2A-\sin^2 A$ .......(3)

Taking the LHS:

$\Rightarrow \cos 3x=\cos (x+2x)$

Using identity 1:

$\Rightarrow \cos (x+2x)=\cos x\cos 2x-\sin x\sin 2x$

Using identities 2 and 3:

$\Rightarrow \cos x(\cos ^2x-\sin^2 x)-\sin x(2\sin x\cos x)\\\\\Rightarrow \cos^3x-\sin^2x\cos x-2\sin^2 x\cos x\\\\\Rightarrow \cos^3x-3\sin^2x\cos x$

As, LHS = RHS

Hence proved

4 0

3 years ago

PLS I NEED HELP THIS IS THE LAST QUESTION FOR MY GEOMETRY WORKSHEET ANYTHING IS APPERCIATED

mr_godi [17]

Answer:

4.64

Step-by-step explanation:

X^2= r/s

8 0

2 years ago