All categories

4 years ago

Point Q is the image of Q (-5,1) under a translation by 6 units to the right and 2 units down

Mathematics

1 answer:

leonid [27]4 years ago

4 0

If you transfer (-5,1) 6 right 2 down you will end up with (1,-1)

You might be interested in

Rewrite with only sin x and cos x.

Annette [7]

Option A

$\cos 3 x=\cos x-4 \cos x \sin ^{2} x$

Solution:

Given that we have to rewrite with only sin x and cos x

Given is cos 3x

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

We know that,

$\cos (a+b)=\cos a \cos b-\sin a \sin b$

Therefore,

$\cos (x+2 x)=\cos x \cos 2 x-\sin x \sin 2 x$ ---- eqn 1

We know that,

$\sin 2 x=2 \sin x \cos x$

$\cos 2 x=\cos ^{2} x-\sin ^{2} x$

Substituting these values in eqn 1

$\cos (x+2 x)=\cos x\left(\cos ^{2} x-\sin ^{2} x\right)-\sin x(2 \sin x \cos x)$ -------- eqn 2

We know that,

$\cos ^{2} x-\sin ^{2} x=1-2 \sin ^{2} x$

Applying this in above eqn 2, we get

$\cos (x+2 x)=\cos x\left(1-2 \sin ^{2} x\right)-\sin x(2 \sin x \cos x)$

$\begin{aligned}&\cos (x+2 x)=\cos x-2 \sin ^{2} x \cos x-2 \sin ^{2} x \cos x\\\\&\cos (x+2 x)=\cos x-4 \sin ^{2} x \cos x\end{aligned}$

$\cos (x+2 x)=\cos x-4 \cos x \sin ^{2} x$

Therefore,

$\cos 3 x=\cos x-4 \cos x \sin ^{2} x$

Option A is correct

7 0

3 years ago

Please help!!!!!! Explain the answer

Dennis_Churaev [7]

Answer:

I think they are.

Step-by-step explanation:

Because they are both 39 and 34 degrees so if x and y are the same number they are similar.

7 0

3 years ago

How do you write 9.51 x 10^-2 in standard form?

lbvjy [14]

Move the decimal point 2 places to the left answer: 0.0951

6 0

3 years ago

Read 2 more answers

Help!!?????? Plssssss

zhannawk [14.2K]

Answer:

1st row- 27

2nd row- 18, 48

3rd row- 55

8 0

3 years ago

Read 2 more answers

What is the mean , median , and sum

mafiozo [28]

Step-by-step explanation:

sum was the first name of integral

and the median is something in the middle

for example :

A . B . C

the median is B

3 0

3 years ago