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3 years ago

Use numbers 8,6,4,2 write expression equals 32&16

1 answer:

3 0

8*(6-4+2)
8*4
32

(8-6)*4*2
2*4*2
8*2
16

Again, remember to play around with the parentheses and think of possible ways for the numbers to reasonable multiply or divide into the desired solution.
Good luck!

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What's the answer to this?

beks73 [17]

Answer:

Q' = (-4, -2)

R' = (4, -2)

S' = (4, 2)

T' = (-4, 2)

Step-by-step explanation:

First, we can create a matrix to scale this rectangle by putting all the x coordinates in the top row and all the y coordinates in the bottom row and multiply it by 4.

Our initial matrix to multiply:

$4\left[\begin{array}{cccc}-1&1&1&-1\\-2&-2&-1&-1\end{array}\right]$

Moved to the origin:

$4\left[\begin{array}{cccc}-1&1&1&-1\\-0.5&-0.5&0.5&0.5\end{array}\right]$

Multiplied by four:

$\left[\begin{array}{cccc}-4&4&4&-4\\-2&-2&2&2\end{array}\right]$

This gives us the points of

Q' = (-4, -2)

R' = (4, -2)

S' = (4, 2)

T' = (-4, 2)

which are our answers.

3 0

2 years ago

Ben originally filled out 6 more applications than henry. Then each boy filled out 4 additional applications, bringing the total

Zanzabum

Ben’s original total=11
Henry’s original total=5

4 0

3 years ago

Find an identity for cos(4t)

s344n2d4d5 [400]

We must know that $\cos(2x)=2\cos^2(x)-1$ . So:

$\cos(4t)=\cos(2\cdot2t)\\\\
\cos(4t)=2\cos^2(2t)-1\\\\
\cos(4t)=2(2\cos^2(t)-1)^2-1\\\\
\cos(4t)=2(4\cos^4(t)-4\cos^2(t)+1)-1\\\\
\cos(4t)=8\cos^4(t)-8\cos^2(t)+2-1\\\\
\boxed{\cos(4t)=8\cos^4(t)-8\cos^2(t)+1}$

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3 years ago

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navik [9.2K]

Answer:

482.84 cm

Step-by-step explanation:

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Ainat [17]

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3 years ago